Circuit/System Verification

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

Start the engine and operate the vehicle at 64 km/h (40 mph) while observing the TCM temperature sensor and the TFT sensor.

The system is operating normally if the TCM temperature is within 10°C (18°F) of the TFT temperature.