Schematic Reference: Shift Lock Control Schematics

DEFINITION: Transmission shift lever does not move with ignition ON and the brake pedal pressed.

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

1. Turn ON the ignition, with the engine OFF.
2. Press and hold the brake pedal.
3. 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

Do the stoplamps operate properly?

Go to Step 4

Go to Diagnostic Starting Point - Lighting Systems

Test the shift lock control solenoid brake switch input 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 5

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 9

Go to Step 6

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 9

Go to Step 7

Inspect for poor connections at the automatic transmission 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 9

Go to Step 8

Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement .

Did you complete the replacement?

Go to Step 9

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Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2