Diagnostic Procedure
WARNING: This page is about a different car, the 2003 Saturn Vue and 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition on, engine running. Drive for a short distance. Using scan tool, monitor status of DTC P0964. Did last test fail? If so, go to next step. If not, problem is intermittent. See DIAGNOSTIC AIDS .
- Turn ignition off. Disconnect transaxle 20-way harness connector. Connect test light between battery voltage and transaxle 20-way harness connector terminal No. 6. Turn ignition on, engine off. Is test light on? If so, go to next step. If not, go to step 7 .
- Measure voltage between transaxle 20-way harness connector terminal No. 7 and ground. What is the voltage value? If voltage is 2-6 volts, go to next step. If voltage is less than 2 volts, go to step 5 . If voltage is greater than 6 volts, go to step 6 .
- Inspect transaxle 20-way harness connector loose terminal connections. Repair as necessary. If okay, replace control solenoid valve assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING.
- Inspect TCC PC solenoid high circuit (418) for an open, a short to ground and loose terminal connections at TCM. Repair as necessary. If okay, replace TCM. See TRANSAXLE CONTROL MODULE under REMOVAL & INSTALLATION.
- Inspect TCC PC solenoid high circuit (418) for a short to voltage. Repair as necessary. If okay, replace TCM. See TRANSAXLE CONTROL MODULE under REMOVAL & INSTALLATION.
- Connect test light between transaxle 20-way harness connector terminal No. 6 and ground. Is test light on? If so, go to next step. If not, go to step 9 .
- Inspect TCC PC solenoid low circuit (5500) for a short to voltage. Repair as necessary. If okay, replace TCM. See TRANSAXLE CONTROL MODULE under REMOVAL & INSTALLATION.
- Inspect TCC PC solenoid low circuit (5500) for an open and loose terminal connections at TCM. Repair as necessary. If okay, replace TCM. See TRANSAXLE CONTROL MODULE under REMOVAL & INSTALLATION.