Shift Lever Does Not Move with Brake Pedal Depressed (Pontiac)

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Automatic Transmission Shift Lock Control Schematics Connector End View Reference: Automatic Transmission Shift Lock Control Connector End Views DEFINITION: Transmission shift lever does not move out of the PARK position with the ignition ON and the brake pedal pressed.
1	Did you perform the Diagnostic System Check - Automatic Transmission Shift Lock Control tests and all the necessary inspections?	Go to Step 2	Go to Diagnostic System Check - Automatic Transmission Shift Lock Control
2	Turn ON the ignition. Press and hold the brake pedal. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn OFF the ignition. Disconnect the automatic transmission shift lock control switch. Turn ON the ignition, with the engine OFF. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position?	Go to Step 9	Go to Step 4
4	Turn OFF the ignition. Leave the automatic transmission shift lock control switch disconnected. Connect a test lamp between the A/T shift lock control solenoid supply voltage circuit at the automatic transmission shift lock control solenoid and a good ground. Turn ON the ignition with the engine OFF. Does the test lamp illuminate?	Go to Step 12	Go to Step 5
5	Turn OFF the ignition. Connect a test lamp between the ignition 3 voltage circuit of the park lock solenoid and a good ground. Turn ON the ignition with the engine OFF. Does the test lamp illuminate?	Go to Step 6	Go to Step 11
6	Turn OFF the ignition. Connect a test lamp between the ignition 3 voltage circuit of the park lock solenoid and the shift lock solenoid controlled ground circuit. Turn ON the ignition with the engine OFF. Does the test lamp illuminate?	Go to Step 10	Go to Step 7
7	Turn OFF the ignition. Connect a test lamp between the ignition 3 voltage circuit of the park lock solenoid and the shift lock solenoid controlled ground circuit at the body control module (BCM). Turn ON the ignition with the engine OFF. Does the test lamp illuminate?	Go to Step 13	Go to Step 8
8	Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 16
9	Inspect for proper adjustment of the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Adjustment in Lighting Systems. Inspect for poor connections at the harness connector of the automatic transmission shift lock control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 15
10	Inspect for poor connections at the harness connector of the park lock/automatic transmission shift lock control solenoid assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 14
11	Repair the open or high resistance in the park lock solenoid ignition 3 voltage circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 17	-
12	Repair short to battery positive voltage in the A/T shift lock control solenoid supply voltage circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 17	-
13	Repair the open or high resistance in the shift lock solenoid controlled ground circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 17	-
14	Replace the park lock/automatic transmission shift lock control solenoid. Refer to Floor Shift Control Replacement in Automatic Transaxle 4T65-E. Did you complete the replacement?	Go to Step 17	-
15	Replace the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement in Lighting Systems. Did you complete the replacement?	Go to Step 17	-
16	Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement?	Go to Step 17	-
17	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2