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 thinks a sensor that checks the temperature is saying it's way too cold, which doesn't make sense.
This code indicates that the temperature reading from the Power Factor Correction Temperature Sensor 'A' is lower than expected, suggesting a possible fault in the sensor or its circuit.
The P1CAD code is triggered when the Engine Control Module (ECM) detects an implausibly low temperature reading from the Power Factor Correction Temperature Sensor 'A'. This could be due to a malfunctioning sensor, wiring issues, or a problem with the ECM itself.
• Check Engine Light is on
• Possible poor engine performance
• Unusual temperature readings on the dashboard
• Faulty Power Factor Correction Temperature Sensor 'A'
• Wiring issues such as shorts or open circuits
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the temperature sensor.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II Scanner
• Multimeter
• Basic hand tools
$100 - $400
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly check and maintain vehicle sensors.
• Ensure wiring harnesses are secure and undamaged.
• Perform routine vehicle diagnostics.
Sensor Issue
• Have your vehicle checked by a professional if the Check Engine Light is on.
• Avoid ignoring the warning signs as it could lead to more severe issues.
Check with your vehicle manufacturer for specific warranty coverage related to sensors and ECM issues.
This code is relatively uncommon and typically associated with specific vehicle models equipped with advanced power factor correction systems.
Moderate – While the vehicle may still be drivable, it is advisable to address the issue to prevent potential engine performance problems.
Driving with a malfunctioning sensor may lead to increased emissions and could fail emissions testing.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The Power Factor Correction Temperature Sensor 'A' is typically located near the power electronics module or within the engine bay.
Q: Can I drive with a P1CAD code?
A: While you may be able to drive, it's best to have the issue checked to avoid further problems.
Q: What happens if I ignore this code?
A: Ignoring the code could lead to poor engine performance and increased emissions.
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