Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a sensor inside the car's computer is saying it's too hot. Imagine if your computer said it was overheating inside.
The Powertrain Control Module (PCM), Engine Control Module (ECM), or Transmission Control Module (TCM) has detected a high voltage signal from the internal switch-on temperature sensor circuit, indicating an abnormally high temperature.
The P16E5 code is triggered when the PCM/ECM/TCM detects a voltage signal from the internal temperature sensor that is higher than the expected range. This sensor monitors the temperature of the module to ensure it operates within safe limits. A high signal suggests that the sensor is reading a temperature that is too high, which could be due to a sensor fault, wiring issue, or actual overheating.
• Check Engine Light is on
• Engine performance issues
• Possible overheating warning
• Faulty temperature sensor
• Wiring issues or poor connections
• Overheating of the PCM/ECM/TCM
PCM: Powertrain Control Module
ECM: Engine Control Module
TCM: Transmission Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the sensor.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring.
• Ensure proper cooling of the PCM/ECM/TCM.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Chevrolet Malibu
• GMC Sierra
• Cadillac ATS
• Regular maintenance checks
• Ensure proper cooling system function
• Inspect wiring regularly
Sensor Issue
• Have the vehicle inspected by a professional.
• Avoid driving if overheating is suspected.
Check with your vehicle manufacturer for warranty coverage on electronic components.
This code has been associated with issues in vehicles with complex electronic systems, particularly in models with high mileage.
Moderate – It's important to address this issue soon to avoid potential damage to the vehicle's computer systems.
Ignoring this code could lead to further damage and potential safety issues if the vehicle's computer systems fail.
• Engine running and up to operating temperature
• Vehicle stationary
The temperature sensor is typically located within the PCM/ECM/TCM housing.
Q: Can I drive with a P16E5 code?
A: It's not recommended to drive with this code active, as it may indicate overheating of critical components.
Q: How do I reset the P16E5 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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