DTC P0667 Cadillac
Transmission Control Module (TCM) Temperature Sensor Performance
Transmission Control Module (TCM) Temperature Sensor Performance
Description
DTC P0667 No other ECM or TCM DTCs are set. Engine speed is 400 RPM or greater for 5 seconds. Ignition voltage is 8.6 volts or greater. Brake torque is not active. Engine torque signal is valid. Throttle position signal is valid.
Cause and Solution
The difference between the transmission fluid temperature (TFT) and TCM substrate temperature is greater than 20-50°C (36-90°F), depending on the average of the TFT, TCM substrate and TCM power up temperatures.
The difference between the TCM power up temperature and TCM substrate temperature is greater than 8-10°C (14-18°F) depending on the average of the TFT, TCM substrate and TCM power up temperature.
Video Guide
Diagnostic Info
- DTC Code: P0667
- Brand: Cadillac