P1229 – Sensor Power Supply Circuit Shorted

P1229 Possible Causes

  • Check the body ground of the harness
  • Faulty Accelerator Pedal Position (APP) sensor
  • Faulty Power Steering Pressure (PSP) sensor
  • Faulty Refrigerant Pressure sensor
  • Faulty EVAP Control System Pressure sensor

How to Fix Code P1229?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Begin by inspecting the harness connections to the body grounds.

When is the Code Detected?

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high.

Possible Symptoms

  • Engine light on (or engine warning light soon to be on)

P1229 Meaning

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high. The ECM stops controlling the electronic throttle control actuator, and the throttle is held at a fixed opening (about 5 degrees) by the return spring.

P1229 FORD F150 – Charge Air Cooler Pump Malfunction

P1229 1997 FORD F150 Possible Causes

  • ICP engine harness is open or shorted
  • Poor electrical connection in the ICP circuit
  • ICP poor power or ground
  • Faulty Intercooler Pump (ICP) motor
  • Damaged Powertrain Control Module (PCM)
 

How to Fix Code P1229 FORD F150?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

The Intercooler Pump (ICP) DTC will set when the Powertrain Control Module (PCM) commands the pump to run but no current is detected.

 
 

When is the Code Detected?

The Powertrain Control Module (PCM) has activated the ICP but no current is detected

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)
 

P1229 FORD F150 Meaning

The Intercooler Pump Compressor Non-Functioning Condition is the generic description for the P1229 Ford F150 code, but the manufacturer may have a different description for your vehicle’s model and year. Currently, we have no further information on the OBDII P1229 Ford F150 code.

P1229 2003 INFINITI G35 – Sensor Power Supply Circuit Shorted

P1229 2003 INFINITI G35 Possible Causes

  • Check the body ground of the harness
  • Faulty Accelerator Pedal Position (APP) sensor
  • Faulty Power Steering Pressure (PSP) sensor
  • Faulty Refrigerant Pressure sensor
  • Faulty EVAP Control System Pressure sensor

How to Fix Code P1229 2003 INFINITI G35?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Begin by inspecting the harness connections to the body grounds.

When is the Code Detected?

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high.

Possible Symptoms

  • Engine light on (or engine warning light soon on)

P1229 2003 INFINITI G35 Meaning

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high. The ECM stops controlling the electronic throttle control actuator, and the throttle valve is held at a fixed opening (about 5 degrees) by the return spring.

P1229 2004 NISSAN MAXIMA – Sensor Power Supply Circuit Shorted

P1229 2004 NISSAN MAXIMA Possible Causes

  • Check the ground of the body harness
  • Faulty Accelerator Pedal Position (APP) sensor
  • Faulty Power Steering Pressure (PSP) sensor
  • Faulty Refrigerant Pressure Sensor
  • Faulty EVAP Control System Pressure Sensor

How to Fix Code P1229 2004 NISSAN MAXIMA?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Begin by inspecting the harness connections to the body grounds.
You can try cleaning the throttle body before replacing anything. After cleaning or replacing the throttle body, you will need to perform an idle air relearn and throttle closed position learning.

When is the Code Detected?

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high.
When the malfunction is detected, the ECM enters fail-safe mode.

Possible Symptoms

  • Engine light on (or engine warning light soon on)

P1229 2004 NISSAN MAXIMA Meaning

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high. The ECM stops controlling the electronic throttle control actuator, and the throttle valve is held at a fixed opening (about 5 degrees) by the return spring.

P1229 2005 NISSAN MAXIMA – Sensor Power Supply Circuit Shorted

P1229 2005 NISSAN MAXIMA Possible Causes

  • Check the body ground harness
  • Faulty Accelerator Pedal Position (APP) sensor
  • Faulty Power Steering Pressure (PSP) sensor
  • Faulty refrigerant pressure sensor
  • Faulty EVAP control system pressure sensor
 

How to Fix Code P1229 2005 NISSAN MAXIMA?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Begin by inspecting the harness connections to the body grounds.
You can try cleaning the throttle body before replacing anything. After cleaning or replacing the throttle body, you will need to perform an idle air relearn and throttle closed position learning.

 
 

When is the Code Detected?

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high.
When the malfunction is detected, the ECM enters fail-safe mode.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)
 

P1229 2005 NISSAN MAXIMA Meaning

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high. The ECM stops controlling the electronic throttle control actuator, and the throttle valve is held at a fixed opening (approximately 5 degrees) by the return spring.

P1229 AUDI – Cylinder 5 Injector Circuit Short to Ground

P1229 AUDI Possible Causes

  • Faulty fuel injector 5
  • Fuel injector 5 harness is open or shorted
  • Poor electrical connection in fuel injector 5 circuit
 

How to Fix P1229 AUDI Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

If the code is combined with other fuel injector codes (P1225, P1226, P1227, P1228, P1230), the issue might be the fuel pump relay.

 
 

Possible Symptoms

  • Engine light on (or service engine soon warning light)
 

P1229 AUDI Meaning

Cylinder 5 Injector Circuit Short to Ground is the generic description for Audi P1229 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the Audi P1229 OBDII code.

P1229 CHEVROLET – Injector 3 Output Circuit

P1229 CHEVROLET Possible Causes

  • Faulty fuel injector 3
  • Fuel injector 3 harness is open or shorted
  • Poor electrical connection in fuel injector 3 circuit
  • Faulty Fuel Injection Control Module (FICM)
  • Faulty Engine Control Module (ECM)

How to Fix Code P1229 CHEVROLET?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

If only one fuel injector control circuit Diagnostic Trouble Code (DTC) is set, an open circuit or poor connection is the most likely cause. If groups of 4 fuel injector control circuit DTCs are set, suspect a short to ground. Cylinder groups are 2, 3, 5, 8 or 1, 4, 6, 7. More than 4 fuel injector control circuit DTCs indicate a short to voltage on the fuel injector control circuit is the most likely cause.

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)
  • Engine misfire
  • Rough running

P1229 CHEVROLET Meaning

The Engine Control Module (ECM) activates the appropriate fuel injector on the compression stroke for each cylinder. The ECM controls the Fuel Injection Control Module (FICM) by grounding the control circuit through a semiconductor device called a driver. The ECM monitors the driver status. If the ECM detects an incorrect voltage for the commanded state of a fuel injector driver, Diagnostic Trouble Code (DTC) P1223, P1226, P1229, P1232, P1235, P1238, P1241 or P1244 will be set.

P1229 FORD – Supercharger Intercooler Pump Malfunction

P1229 FORD Possible Causes

  • Engine ICP harness is open or shorted
  • Poor electrical connection in the ICP circuit
  • ICP poor power or ground supply
  • Faulty Injection Control Pressure (ICP) sensor
  • Damaged Powertrain Control Module (PCM)

How to Fix Code P1229 FORD?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

The Injection Control Pressure (ICP) DTC will set when the Powertrain Control Module (PCM) commands the pump to operate but no current is detected.

When is the Code Detected?

The Powertrain Control Module (PCM) has activated the ICP but no current is detected

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1229 FORD Meaning

The Injection Control Pressure Pump malfunction condition is the generic description for Ford P1229 code, but the manufacturer may have a different description for your model and year vehicle. Currently, we don’t have more information about the Ford P1229 OBDII code.

P1229 GMC – Injector 3 Output Circuit

P1229 GMC Possible Causes

  • Faulty fuel injector 3
  • Fuel injector 3 harness is open or shorted
  • Poor electrical connection in fuel injector 3 circuit
  • Faulty Fuel Injection Control Module (FICM)
  • Faulty Engine Control Module (ECM)

How is P1229 GMC Code Repaired?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

If only one fuel injector control circuit Diagnostic Trouble Code (DTC) is set, an open circuit or poor connection is the most likely cause. If groups of 4 fuel injector control circuit DTCs are set, suspect a short to ground. Cylinder groups are 2, 3, 5, 8 or 1, 4, 6, 7. More than 4 fuel injector control circuit DTCs indicate a short to voltage in the fuel injector control circuit is the most likely cause.

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)
  • Engine Misfire
  • Rough Running

P1229 GMC Meaning

The Engine Control Module (ECM) activates the appropriate fuel injector on the compression stroke for each cylinder. The ECM controls the Fuel Injection Control Module (FICM) by grounding the control circuit through a semiconductor device called a driver. The ECM monitors the driver status. If the ECM detects an incorrect voltage for the commanded state of a fuel injector driver, Diagnostic Trouble Code (DTC) P1223, P1226, P1229, P1232, P1235, P1238, P1241 or P1244 will be set.

P1229 INFINITI – Sensor Power Supply Circuit Shorted

P1229 INFINITI Possible Causes

  • Check the ground of the body harness
  • Faulty accelerator pedal position (APP) sensor
  • Faulty power steering pressure (PSP) sensor
  • Faulty refrigerant pressure sensor
  • Faulty EVAP control system pressure sensor

How to Fix P1229 INFINITI Code?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Begin by inspecting the harness connections to the body grounds.

When is the Code Detected?

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high.

Possible Symptoms

  • Engine light on (or engine warning light soon)

P1229 INFINITI Meaning

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high. The ECM stops controlling the electronic throttle control actuator, and the throttle valve is held at a fixed opening (about 5 degrees) by the return spring.