Circuit/System Testing
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the 22-way automatic transmission (AT) wiring harness connector (C2) at the TCM.
- Test for 5-8 ohms between the PC solenoid high control circuit terminal and low control circuit terminal.
- If not within the specified range
- Remove the appropriate solenoid and test for 4-8 ohms.
- If not within the specified range, replace the valve body assembly.
- Replace the AT wiring harness, refer to Wiring Harness Removal procedure and Wiring Harness Installation procedure.
- Remove the appropriate solenoid and test for 4-8 ohms.
- If not within the specified range
- Replace the TCM, refer to Transmission Control Module Removal procedure and Transmission Control Module Installation procedure.