Component Testing

WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle OFF, disconnect the X1 and X2 harness connectors at the transmission.
Test for 15-25 Ω between the AC circuit at X2 terminal 1 and the AC circuit at X2 terminal 2.
- If not within the specified range, replace the drive motor generator 2 position sensor.
Test for 35-55 Ω between the signal circuit at X1 terminal 3 and the signal circuit at X1 terminal 4.
- If not within the specified range, replace the drive motor generator 2 position sensor.
Test for 35-55 Ω between the signal circuit at X1 terminal 1 and the signal circuit at X1, terminal 2.
- If not within the specified range, replace the drive motor generator 2 position sensor.
Test for greater than 15 Ω between the terminals listed below and ground:
- X1 terminal 1
- X1 terminal 2
- X1 terminal 3
- X1 terminal 4
- X2 terminal 1
- X2 terminal 2
- If less that the specified value, replace the drive motor generator 2 position sensor.
Test for infinite resistance between the terminals listed below:
- X1 terminal 1 and X1 terminal 3
- X1 terminal 1 and X2 terminal 1
- X1 terminal 3 and X2 terminal 1
- If less that the specified value, replace the drive motor generator 2 position sensor.