How severe is this DTC?

I would say this fault is moderately severe. As mentioned earlier, your automatic transmission may still function properly. That said, it could also be indicative of one or more larger and more urgent issues. Diagnosing any transmission problems as soon as possible is the best strategy.

What are some symptoms of the code?

Symptoms of a P2752 trouble code may include:

• Hard shifting
• Multiple dashboard warning lights on
• Poor driving performance
• Irregular engine RPM

What are some common causes of the code?

Causes

of this P2752 engine code may include:

• Faulty or damaged countershaft speed sensor
• Electrical fault in the wiring between the speed sensor and the modules used
• Internal ECM and/or TCM problem
• Other related sensors/solenoids damaged or faulty (e.g., input shaft speed sensor, output shaft sensor, shift solenoid, etc.)
• Dirty or low automatic transmission fluid (ATF)

What are the troubleshooting steps for P2752?

Basic Step #1

If you’re looking up this code, I’ll assume you’ve already checked the transmission fluid level. If not, start with that. Make sure the fluid is clean and properly filled. Once the fluid is all set, you need to locate the countershaft speed sensor. Often, these sensors are mounted directly on the transmission case.

You might even access the sensor under the hood; this may involve removing one or more components such as the air filter and box, various brackets, wires, etc., to reach it. Ensure the sensor and its corresponding connector are in good condition and fully connected.

TIP: Burnt-smelling ATF (automatic transmission fluid) is a sign that new fluid is needed, so don’t hesitate to perform a full transmission service with all new filters, gaskets, and fluid.

Basic Step #2

An easily accessible speed sensor should be removed and cleaned. This costs almost nothing, and if you find the sensor tip is excessively dirty once removed, you might be able to clean your problems away, literally. Use brake cleaner and a cloth to ensure a clean sensor pickup. Dirt and/or metal shavings here can disrupt sensor readings, so make sure yours is clean!

NOTE: Any signs of rubbing on the sensor may indicate improper spacing between the reluctor ring and the sensor. Most likely, the sensor has failed and is now contacting the ring. If a replacement sensor still doesn’t clear the code, refer to the manufacturer’s procedures to adjust the gap between the sensor and the reluctor.

Basic Step #3

Test the sensor and its circuit. To test the sensor itself, you’ll need to use your multimeter and the manufacturer’s specific specifications to measure different electrical values between the sensor pins. A good tip is to perform these tests from the same wires but at the corresponding ECM or TCM connector pins. This will check the integrity of the involved wiring harness as well as the sensor.

How serious is this DTC?

I would say this fault is moderately serious. As mentioned earlier, your automatic transmission may still function properly. That said, it could also be indicative of one or more larger and more urgent issues. Diagnosing any transmission problem as soon as possible is the best strategy.

What are some symptoms of the code?

Symptoms of a P2751 trouble code may include:

• Hard shifting
• Multiple dashboard warning lights on
• Poor driving performance
• Irregular engine RPM

What are some common causes of the code?

Causes

of this P2751 engine code may include:

• Faulty or damaged intermediate shaft speed sensor
• Electrical fault in the wiring between the speed sensor and the modules used
• Internal ECM and/or TCM problem
• Other related sensors/solenoids damaged or faulty (e.g., input shaft speed sensor, output shaft sensor, shift solenoid, etc.)
• Dirty or low automatic transmission fluid (ATF)

What are the troubleshooting steps for P2751?

Basic Step #1

If you’re looking up this code, I’ll assume you’ve already checked the transmission fluid level. If not, start with that. Make sure the fluid is clean and properly filled. Once everything is fluid, you need to locate the intermediate shaft speed sensor. Often, these sensors are mounted directly on the transmission case.

You may even access the sensor under the hood; this might involve removing one or more components such as the air filter and box, various brackets, wires, etc., to reach it. Ensure the sensor and its corresponding connector are in good condition and fully connected.

TIP: Burnt-smelling ATF (automatic transmission fluid) is a sign that new fluid is needed, so don’t hesitate to perform a full transmission service with all new filters, gaskets, and fluids.

Basic Step #2

An easily accessible speed sensor should be removed and cleaned. This costs almost nothing, and if you find the sensor tip is excessively dirty once removed, you might be able to clean your problems away, literally. Use brake cleaner and a cloth to ensure a clean pickup on the sensor. Dirt and/or metal shavings here can affect sensor readings, so make sure yours is clean!

NOTE: Any signs of rubbing on the sensor may indicate improper spacing between the reluctor ring and the sensor. Most likely, the sensor has malfunctioned and is now hitting the ring. If a replacement sensor still doesn’t clear the code, refer to the manufacturer’s procedures to adjust the gap between the sensor and the reluctor.

Basic Step #3

Test the sensor and its circuit. To test the sensor itself, you’ll need to use your multimeter and the manufacturer’s specific specifications to measure different electrical values between the sensor pins. A good tip is to perform these tests from the same wires but at the corresponding ECM or TCM connector pins. This will check the integrity of the involved harness as well as the sensor.

How severe is this DTC?

I would say this fault is moderately severe. As mentioned earlier, your automatic transmission may still function properly. That said, it could also be indicative of one or more larger and more urgent issues. Diagnosing any transmission problem as soon as possible is the best strategy.

What are some symptoms of the code?

Symptoms of a P2750 trouble code may include:

• Hard shifting
• Multiple dashboard warning lights on
• Poor driving performance
• Irregular engine RPM

What are some common causes of the code?

Causes

of this P2750 engine code may include:

• Faulty or damaged intermediate shaft speed sensor
• Electrical fault in the wiring between the speed sensor and the modules used
• Internal ECM and/or TCM issue
• Other damaged or faulty related sensors/solenoids (e.g., input shaft speed sensor, output shaft sensor, shift solenoid, etc.)
• Dirty or low automatic transmission fluid (ATF)

What are the troubleshooting steps for P2750?

Basic Step #1

If you’re looking up this code, I’ll assume you’ve already checked the transmission fluid level. If not, start with that. Make sure the fluid is clean and properly filled. Once everything is fluid, you need to locate the intermediate shaft speed sensor. Often, these sensors are mounted directly on the transmission case.

You might even access the sensor under the hood; this may involve removing one or more components such as the air filter and box, various brackets, wires, etc., to reach it. Ensure the sensor and its corresponding connector are in good condition and fully connected.

TIP: Burnt-smelling ATF (automatic transmission fluid) is a sign that new fluid is needed, so don’t hesitate to perform a full transmission service with all new filters, gaskets, and fluid.

Basic Step #2

An easily accessible speed sensor should be removed and cleaned. This costs almost nothing, and if you find the sensor tip is excessively dirty once removed, you might be able to clean your problems away, literally. Use brake cleaner and a cloth to ensure a clean sensor pickup. Dirt and/or debris here can interfere with sensor readings, so make sure yours is clean!

NOTE: Any signs of rubbing on the sensor may indicate improper spacing between the reluctor ring and the sensor. Most likely, the sensor has malfunctioned and is now hitting the ring. If a replacement sensor still doesn’t clear the code, refer to the manufacturer’s procedures to adjust the gap between the sensor and the reluctor.

Basic Step #3

Test the sensor and its circuit. To test the sensor itself, you’ll need to use your multimeter and the manufacturer’s specific specifications to measure different electrical values between the sensor pins. A good tip is to perform these tests from the same wires but at the corresponding ECM or TCM connector pins. This will verify the integrity of the involved wiring harness as well as the sensor.

P2753 Possible Causes

• Faulty automatic transmission cooler control valve
• Automatic transmission cooler control valve circuit open or shorted
• Poor electrical connection in transmission cooler control valve circuit

How to Fix Code P2753

Check the “Possible Causes” listed above. Visually inspect related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P2753 Meaning

The Engine Control Module (ECM) monitors the transmission fluid cooler control circuit. The ECM sets the OBDII code when the transmission fluid cooler control circuit signal is outside factory specifications.

P2754 Possible Causes

• Faulty automatic transmission cooler control valve
• Automatic transmission cooler control valve circuit open or shorted
• Poor electrical connection in transmission cooler control valve circuit

How to Repair Code P2754

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2754 Meaning

The Engine Control Module (ECM) monitors the transmission fluid cooler control circuit. The ECM sets the OBDII code when the transmission fluid cooler control circuit signal is outside factory specifications.

P2755 Possible Causes

• Faulty automatic transmission cooler control valve
• Automatic transmission cooler control valve circuit open or shorted
• Poor electrical connection in transmission cooler control valve circuit

How to Fix Code P2755

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2755 Meaning

The Engine Control Module (ECM) monitors the transmission fluid cooler control circuit. The ECM sets the OBDII code when the transmission fluid cooler control circuit signal is outside factory specifications.

P2756 Possible Causes

• Faulty torque converter clutch pressure control solenoid
• Torque converter clutch pressure control solenoid circuit open or shorted
• Poor electrical connection in torque converter clutch pressure control solenoid circuit

How to Fix Code P2756

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2756 Meaning

The engine control module (ECM) monitors the signal from the torque converter clutch pressure control solenoid circuit. The ECM sets the OBDII code when the torque converter clutch pressure control solenoid is outside factory specifications.

P2757 Possible Causes

• Dirty transmission fluid
• Faulty SLU line pressure solenoid valve
• SLU line pressure solenoid harness is open or shorted
• SLU line pressure solenoid circuit poor electrical connection
• Torque converter clutch
• Valve body is stuck

How to Fix Code P2757

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P2757 Meaning

The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent by the vehicle speed and the Engine Control Module (ECM). The lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lock-up clutch engages by creating a 1:1 rpm ratio between the transmission input shaft and the torque converter rotational speed.

However, lock-up is prohibited when the A/T fluid temperature is too low.

When the accelerator pedal is pressed (less than 2/8) under lock-up condition, the engine speed should not change abruptly. If there is a large jump in engine speed, there is no lock-up.

P2758 Possible Causes

• Faulty torque converter clutch pressure control solenoid
• Torque converter clutch pressure control solenoid circuit open or shorted
• Poor electrical connection in torque converter clutch pressure control solenoid circuit

How to Fix Code P2758

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2758 Meaning

The engine control module (ECM) monitors the torque converter clutch pressure control solenoid circuit signal. The ECM sets the OBDII code when the torque converter clutch pressure control solenoid is outside factory specifications.

P2759 Possible Causes

• Low transmission fluid level
• Dirty transmission fluid
• Faulty SLU shift solenoid valve
• SLU shift solenoid valve harness is open or shorted
• Poor electrical connection in the SLU shift solenoid valve circuit
  Stuck valve body

How to Fix Code P2759

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2759 Meaning

The current flow to the solenoid is controlled by the ECM output signal’s duty cycle*. The higher the duty cycle, the greater the lock-up hydraulic pressure during lock-up operation.