How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some symptoms of the code?

Symptoms of a P3435 trouble code may include:

• Engine may misfire
• Increased fuel consumption
• Poor engine performance
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3435 code may include:

• Faulty cylinder deactivation solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3435?

The first step in the troubleshooting process for any malfunction is to research Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. In some circumstances, this can save you significant time in the long run by pointing you in the right direction.

The second step is to check the engine oil condition and confirm it is maintained at the proper level. Then locate all components associated with the cylinder 5 deactivation intake valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components including the deactivation solenoid, switches, fault indicators, and ECM. Perform a thorough visual inspection to verify that associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burn marks. Next, check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components including the ECM. Consult vehicle-specific technical data to verify the configuration of the cylinder 5 deactivation/intake control circuit and confirm each component incorporated in the circuit which may include a fuse or fusible link.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit and normal readings for wiring and connections should be 0 ohms resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacing deactivation solenoid
• Cleaning connector corrosion
• Repairing or replacing faulty wiring
• Changing oil and filter
• Cleaning blocked oil passages
• Flashing or replacing ECM

Common Mistake

• Replacing the deactivation solenoid when insufficient oil pressure or faulty wiring causes the ECM to set this code.

I hope the information contained in this article has been helpful in pointing you in the right direction to correct the issue with your cylinder 5 deactivation/intake valve control circuit fault code. This article is strictly informational and vehicle-specific technical data and service bulletins should always take priority…

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some symptoms of the code?

Symptoms of a P3434 trouble code may include:

• Engine may misfire
• Increased fuel consumption
• Poor engine performance
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3434 code may include:

• Faulty cylinder deactivation solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3434?

The first step in the troubleshooting process for any malfunction is to search for Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. In some circumstances, this can save you significant time in the long run by pointing you in the right direction.

The second step is to check the engine oil condition and confirm it is maintained at the appropriate level. Then locate all components associated with the cylinder 5 deactivation intake valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components, including the deactivation solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to verify that the associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burns. Next, check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components, including the ECM. Consult vehicle-specific technical data to verify the configuration of the cylinder 5 deactivation/intake control circuit and confirm each component incorporated into the circuit that may include a fuse or fusible link.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit, and normal readings for wiring and connections should be 0 ohms resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacing the deactivation solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Changing oil and filter
• Cleaning blocked oil passages
• Flashing or replacing the ECM

Common Mistake

• Replacing the deactivation solenoid when insufficient oil pressure or faulty wiring causes the ECM to set this code.

I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your cylinder 5 deactivation/intake valve control circuit fault code. This article is strictly informational, and your vehicle’s specific technical data and service bulletins should always take priority…

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some symptoms of the code?

Symptoms of a P3433 trouble code may include:

• Engine may misfire
• Increased fuel consumption
• Poor engine performance
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3433 code may include:

• Faulty cylinder deactivation solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3433?

The first step in the troubleshooting process for any malfunction is to research Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. In some circumstances, this can save you considerable time in the long run by pointing you in the right direction.

The second step is to check the engine oil condition and confirm it’s maintained at the appropriate level. Then locate all components associated with the cylinder 5 deactivation intake valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components including the deactivation solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to verify that associated wiring doesn’t show obvious defects such as scraping, rubbing, bare wires, or burn marks. Next, check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components including the ECM. Consult vehicle-specific technical data to verify the configuration of the cylinder 5 deactivation/intake control circuit and confirm each component incorporated in the circuit which may include a fuse or fusible link.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit and normal readings for wiring and connections should be 0 ohms resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacing deactivation solenoid
• Cleaning connector corrosion
• Repairing or replacing faulty wiring
• Changing oil and filter
• Cleaning blocked oil passages
• Flashing or replacing ECM

Common Mistake

• Replacing the deactivation solenoid when insufficient oil pressure or faulty wiring is causing the ECM to set this code.

I hope the information contained in this article has been helpful in pointing you in the right direction to correct the issue with your cylinder 5 deactivation/intake valve control circuit fault code. This article is strictly informational and vehicle-specific technical data and service bulletins should always take priority…

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some symptoms of the code?

Symptoms of a P3440 trouble code may include:

• Increased fuel consumption
• Poor engine performance
• Engine misfires
• Service engine soon light
• Check engine light illuminated

What are some common causes of the code?

Causes

of this P3440 code may include:

• Faulty variable timing solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3440?

The first step in the troubleshooting process for any malfunction is to search for Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. This can save you time and money as it’s essentially a known fix for a known issue.

The second step is to check the engine oil condition and confirm it’s maintained at the proper level. Then locate all components associated with the cylinder 5 exhaust valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components including the variable timing solenoid, switches, fault indicators, and ECM. Perform a thorough visual inspection to verify that the associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burns. Then check connectors and connections for security, corrosion, and damaged pins. Consult specific vehicle technical data to verify configuration and identify each component incorporated in the cylinder 1 exhaust valve control circuit.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to operate accurately. These procedures require a digital multimeter and vehicle-specific technical references. In this situation, an oil pressure gauge may also facilitate the troubleshooting process to confirm an oil passage restriction.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit and normal readings for wiring and connections should be 0 ohms resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacement of variable valve timing solenoid
• Cleaning connector corrosion
• Repairing or replacing faulty wiring
• Clearing blocked oil passages
• ECM replacement

Common Mistake

Replacing the variable valve timing solenoid when insufficient oil pressure or faulty wiring causes the ECM to set this code.
I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your exhaust valve control circuit error code. This article is strictly informational and specific vehicle technical data and service bulletins should always take priority.

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific malfunction symptoms. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some symptoms of the code?

Symptoms of a P3439 trouble code may include:

• Increased fuel consumption
• Poor engine performance
• Engine misfires
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3439 code may include:

• Faulty variable timing solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3439?

The first step in the troubleshooting process for any malfunction is to research Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. This can save you time and money as it’s essentially a known fix for a known problem.

The second step is to check the engine oil condition and confirm it’s maintained at the proper level. Then locate all components associated with the cylinder 5 exhaust valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components including the variable timing solenoid, switches, fault indicators, and ECM. Perform a thorough visual inspection to verify the associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burning. Then check connectors and connections for security, corrosion, and damaged pins. Consult specific vehicle technical data to verify configuration and identify each component incorporated in the cylinder 1 exhaust valve control circuit.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to operate accurately. These procedures require a digital multimeter and vehicle-specific technical references. In this situation, an oil pressure gauge may also facilitate the troubleshooting process to confirm an oil passage restriction.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit and normal readings for wiring and connections should be 0 ohms resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacement of variable valve timing solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Clearing blocked oil passages
• ECM replacement

Common Mistake

Replacing the variable valve timing solenoid when insufficient oil pressure or faulty wiring causes the ECM to set this code.
I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your exhaust valve control circuit error code. This article is strictly informational and specific vehicle technical data and service bulletins should always take priority.

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some of the symptoms of the code?

Symptoms of a P3438 trouble code may include:

• Increased fuel consumption
• Poor engine performance
• Engine misfires
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3438 code may include:

• Faulty variable timing solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3438?

The first step in the troubleshooting process for any malfunction is to research Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. This can save you time and money as it is essentially a known fix for a known issue.

The second step is to check the engine oil condition and confirm it is maintained at the proper level. Then locate all components associated with the cylinder 5 exhaust valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may integrate several components, including the variable timing solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to check that the associated wiring has no obvious defects such as scraping, rubbing, bare wires, or burns. Next, check the connectors and connections for security, corrosion, and damaged pins. Consult the specific vehicle’s technical data to verify the configuration and identify each component incorporated into the cylinder 1 exhaust valve control circuit.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to operate accurately. These procedures require a digital multimeter and the vehicle-specific technical references. In this situation, an oil pressure gauge may also facilitate the troubleshooting process to confirm an oil passage restriction.

Voltage Checks

Reference voltage and acceptable ranges can vary depending on the specific vehicle and circuit configuration. The specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of the wiring, connectors, and other components. Continuity tests should always be performed with the power disconnected from the circuit, and normal readings for wiring and connections should be 0 ohms of resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and must be repaired or replaced.

What are the common repairs for this code?

• Replacement of the variable valve timing solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Clearing blocked oil passages
• ECM replacement

Common Mistake

Replacing the variable valve timing solenoid when insufficient oil pressure or faulty wiring is causing the ECM to set this code.
I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your exhaust valve control circuit error code. This article is strictly informational, and the technical data and service bulletins specific to your vehicle should always take priority.

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some symptoms of the code?

Symptoms of a P3437 trouble code may include:

• Increased fuel consumption
• Poor engine performance
• Engine misfires
• Service engine soon light
• Check engine light illuminated

What are some common causes of the code?

Causes

of this P3437 code may include:

• Faulty variable timing solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3437?

The first step in the troubleshooting process for any malfunction is to search for Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine. This can save you time and money as it’s essentially a known fix for a known issue.

The second step is to check the engine oil condition and confirm it’s maintained at the proper level. Then locate all components associated with the cylinder 5 exhaust valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components, including the variable timing solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to verify that the associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burns. Next, check connectors and connections for security, corrosion, and damaged pins. Consult specific vehicle technical data to verify configuration and identify each component incorporated into the cylinder 1 exhaust valve control circuit.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to function accurately. These procedures require a digital multimeter and vehicle-specific technical references. In this situation, an oil pressure gauge may also facilitate the troubleshooting process to confirm an oil passage restriction.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the appropriate sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit, and normal readings for wiring and connections should be 0 ohms resistance. Resistance or lack of continuity indicates faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacement of variable valve timing solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Clearing blocked oil passages
• ECM replacement

Common Mistake

Replacing the variable valve timing solenoid when insufficient oil pressure or faulty wiring causes the ECM to set this code.
I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your exhaust valve control circuit error code. This article is strictly informational, and specific technical data and service bulletins for your vehicle should always take priority.

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some of the symptoms of the code?

Symptoms of a P3441 trouble code may include:

• Engine may misfire
• Increased fuel consumption
• Poor engine performance
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes of this P3441 code may include:

• Faulty cylinder deactivation solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3441?

The first step in the troubleshooting process for any malfunction is to research technical service bulletins (TSBs) for the specific vehicle by year, model, and engine. In some circumstances, this can save you considerable time in the long run by pointing you in the right direction.

The second step is to check the engine oil condition and confirm it is maintained at the appropriate level. Then locate all components associated with the cylinder 6 deactivation intake valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components, including the deactivation solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to verify that the associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burn marks. Next, check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components, including the ECM. Consult vehicle-specific technical data to verify the configuration of the cylinder 6 deactivation/intake control circuit and confirm each component incorporated in the circuit that may include a fuse or fusible link.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit, and normal readings for wiring and connections should be 0 ohms of resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are the common repairs for this code?

• Replacement of deactivation solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Changing oil and filter
• Cleaning blocked oil passages
• ECM replacement

Common Mistake

Replacing the deactivation solenoid when insufficient oil pressure or faulty wiring is causing the ECM to set this code.
I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your cylinder 6 deactivation/intake valve control circuit fault code. This article is strictly informational, and the technical data and service bulletins specific to your vehicle should always take priority.

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some of the symptoms of the code?

Symptoms of a P3445 trouble code may include:

• The engine may misfire
• Increased fuel consumption
• Poor engine performance
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3445 code may include:

• Faulty cylinder deactivation solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3445?

The first step in the troubleshooting process for any malfunction is to search for technical service bulletins (TSBs) for the specific vehicle by year, model, and engine. In some circumstances, this can save you significant time in the long run by pointing you in the right direction.

The second step is to check the condition of the engine oil and confirm it is maintained at the appropriate level. Then locate all components associated with the cylinder 6 deactivation intake valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components, including the deactivation solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to verify that the associated wiring shows no obvious defects such as scraping, rubbing, bare wires, or burns. Next, check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components, including the ECM. Consult vehicle-specific technical data to verify the configuration of the cylinder 6 deactivation/intake control circuit and confirm each component incorporated into the circuit that may include a fuse or fusible link.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit, and normal readings for wiring and connections should be 0 ohms of resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are common repairs for this code?

• Replacing the deactivation solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Changing oil and filter
• Cleaning blocked oil passages
• Replacing the ECM

Common Mistake

Replacing the deactivation solenoid when insufficient oil pressure or faulty wiring is causing the ECM to set this code.
I hope the information in this article has been helpful in pointing you in the right direction to correct the issue with your cylinder 6 deactivation/intake valve control circuit fault code. This article is strictly informational, and technical data and service bulletins specific to your vehicle should always take priority.

How severe is this DTC?

The severity of this code can vary significantly from moderate to severe depending on the specific symptoms of the malfunction. A misfire requires immediate attention as it can cause permanent damage to internal engine components.

What are some of the symptoms of the code?

Symptoms of a P3444 trouble code may include:

• Engine may misfire
• Increased fuel consumption
• Poor engine performance
• Service engine soon light illuminated
• Check engine light on

What are some common causes of the code?

Causes

of this P3444 code may include:

• Faulty cylinder deactivation solenoid
• Low engine oil level or pressure
• Restricted oil passage
• Faulty or damaged wiring
• Corroded, damaged, or loose connector
• Faulty ECM

What are the troubleshooting steps for P3444?

The first step in the troubleshooting process for any malfunction is to search for technical service bulletins (TSBs) for the specific vehicle by year, model, and engine. In some circumstances, this can save you significant time in the long run by pointing you in the right direction.

The second step is to check the engine oil condition and confirm it is maintained at the appropriate level. Then locate all components associated with the cylinder 6 deactivation intake valve control circuit and look for obvious physical damage. Based on the specific vehicle, this circuit may incorporate multiple components, including the deactivation solenoid, switches, fault indicators, and the ECM. Perform a thorough visual inspection to verify that the associated wiring does not show obvious defects such as scraping, rubbing, bare wires, or burns. Next, check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components, including the ECM. Consult vehicle-specific technical data to verify the configuration of the cylinder 6 deactivation/intake control circuit and confirm each component incorporated into the circuit that may include a fuse or fusible link.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references.

Voltage Checks

Reference voltage and acceptable ranges may vary depending on the specific vehicle and circuit configuration. Specific technical data will include troubleshooting charts and the proper sequence to follow to help you establish an accurate diagnosis.

If this process identifies the absence of a power source or ground, continuity tests may be required to verify the integrity of wiring, connectors, and other components. Continuity tests should always be performed with power disconnected from the circuit, and normal readings for wiring and connections should be 0 ohms of resistance. Resistance or lack of continuity is an indication of faulty wiring that is open, shorted, or corroded and should be repaired or replaced.

What are the common repairs for this code?

• Replacing the deactivation solenoid
• Cleaning corrosion from connectors
• Repairing or replacing faulty wiring
• Changing oil and filter
• Cleaning blocked oil passages
• Replacing the ECM

Common Mistake

Replacing the deactivation solenoid when insufficient oil pressure or faulty wiring is causing the ECM to set this code.
I hope the information in this article has been helpful in guiding you in the right direction to correct the issue with your cylinder 6 deactivation/intake valve control circuit fault code. This article is strictly informational, and technical data and service bulletins specific to your vehicle should always take priority.