Circuit/System Testing
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the T6 drive motor generator power inverter module connector X1.
- Ignition ON, measure the voltage on the ignition 1 circuit, between connector X1 terminal 20 and ground. The voltage should be within 1.0 V of the battery voltage.
- If not the specified value test the ignition 1 signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the T6 drive motor generator power inverter module.