Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer has a sensor inside it that checks how hot it is. This code means that sensor is not working right.
The internal temperature sensor B in the control module is reporting a temperature that is outside the expected range, indicating a potential issue with the sensor or its readings.
The P06AC code is triggered when the Powertrain Control Module (PCM) detects a problem with the internal temperature sensor B, which monitors the temperature inside the control module. This could be due to a sensor malfunction, wiring issues, or a problem with the control module itself.
• Check Engine Light is on
• Engine may run poorly
• Possible overheating of the control module
• Faulty internal temperature sensor B
• Wiring or connection issues
• Faulty Powertrain Control Module (PCM)
PCM: Powertrain Control Module, the vehicle's main computer that controls engine and transmission functions.
OBD-II: On-Board Diagnostics II, a standardized system for self-diagnostics and reporting in vehicles.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the control module.
• Test the internal temperature sensor B for proper operation.
• Repair or replace faulty wiring or connections.
• Replace the internal temperature sensor B if defective.
• Replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Screwdrivers
$150 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain vehicle wiring.
• Ensure proper cooling of the control module.
• Avoid exposure of the control module to extreme temperatures.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have a professional diagnose the issue if unsure.
• Avoid driving the vehicle if it shows signs of overheating.
Check with the vehicle manufacturer for warranty coverage on the control module and sensors.
This code has been associated with sensor failures in some vehicle models, leading to updates in sensor design.
Moderate – It's important to address this issue to prevent potential damage to the control module.
Driving with a faulty control module sensor can lead to further engine issues and potential safety risks.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The control module is typically located in the engine bay, often near the firewall or under the dashboard.
Q: Can I drive with a P06AC code?
A: It's not recommended to drive with this code as it may lead to further engine issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code and reset the light.
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