Circuit/System Verification: Notes
WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0667
- Start the engine and operate the vehicle at 64 km/h (40 mph) while observing the TCM power up temperature sensor and the TCM temperature sensor.
- The system is operating normally if the TCM power up temperature is within 10°C (18°F) of the TCM temperature sensor.