Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Shift Lever Does Not Move with Brake Pedal Depressed
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Automatic Transmission Shift Lock Control Schematics DEFINITION: Transmission shift lever does not move with ignition ON and the brake pedal pressed. | |||
| 1 | Did you perform the Symptoms - Automatic Transmission Shift Lock Control tests and perform all necessary inspections? | Go to Step 2 | Go to Symptoms - Automatic Transmission Shift Lock Control |
| 2 | Turn ON the ignition, with the engine OFF. 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 | Do the stop lamps operate properly? | Go to Step 4 | Go to Diagnostic Starting Point - Lighting Systems |
| 4 | Connect a test lamp between the shiftlock control solenoid feed circuit of the shiftlock control relay (terminal 4) and ground. Turn ON the ignition, with the engine OFF. Press and hold the brake pedal. Does the test lamp illuminate? | Go to Step 7 | Go to Step 5 |
| 5 | Test the shift lock control relay supply voltage circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 6 |
| 6 | Test the shift lock control relay brake switch input circuit for a short to B+. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 10 |
| 7 | Test the shift lock control solenoid feed circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 8 |
| 8 | Test the shift lock control solenoid supply voltage circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 9 |
| 9 | Test the shift lock control solenoid ground circuits for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 11 |
| 10 | Inspect for poor connections at the shift lock control relay. 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 14 | Go to Step 12 |
| 11 | Inspect for poor connections at the shift lock control solenoid. 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 14 | Go to Step 13 |
| 12 | Replace the shift lock control relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 14 | |
| 13 | Replace the shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement . Did you complete the replacement? | Go to Step 14 | |
| 14 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |
Shift Lever Does Not Move with Brake Pedal Depressed
Shift Lever Can Be Moved without Brake Pedal Depressed
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Automatic Transmission Shift Lock Control Schematics DEFINITION: Transmission shift lever does not lock in the PARK position with the ignition ON and the brake pedal not pressed. | |||
| 1 | Did you perform the Symptoms - Automatic Transmission Shift Lock Control tests and perform all the necessary inspections? | Go to Step 2 | Go to Symptoms - Automatic Transmission Shift Lock Control |
| 2 | Apply the parking brake and block the wheels. 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 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Disconnect the shift lock control relay. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position? | Go to Step 6 | Go to Step 4 |
| 4 | Test the shift lock control relay brake switch input circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 5 |
| 5 | Test the shift lock control relay ground circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
| 6 | Test the shift lock control solenoid feed circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 8 |
| 7 | Inspect for poor connections at the shift lock control relay. 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 11 | Go to Step 9 |
| 8 | Inspect for poor connections at the shift lock control solenoid. 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 11 | Go to Step 10 |
| 9 | Replace the shift lock control relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 11 | |
| 10 | Replace the shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement . Did you complete the repair? | Go to Step 11 | |
| 11 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |
Shift Lever Can Be Moved without Brake Pedal Depressed