For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
DEFINITION: Transmission shift lever does not move with ignition ON and brake pedal depressed.
1 |

1. Disconnect the stoplamp/auto trans shift lock control switch.
2. Turn ON the ignition, with the engine OFF.
3. Depress the brake pedal.
4. Attempt to move the transmission shift lever out of the PARK position.

Did the transmission shift lever move out of the PARK position?

--

Go to Step 4

Go to Step 2

2 |

1. Turn OFF the ignition.
2. Disconnect the auto trans shift lock control solenoid.
3. Turn ON the ignition, with the engine OFF.
4. Depress the brake pedal.
5. Attempt to move the transmission shift lever out of the PARK position.

Did the transmission shift lever move out of the PARK position?

--

Go to Step 3

Go to Step 6

3 | Repair the short to battery voltage (B+) in the neutral safety switch signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 8 | --
4 |

1. Inspect for proper stoplamp/auto trans shift lock control switch adjustment. Refer to Stop Lamp Switch Adjustment in Hydraulic Brakes.
2. Inspect for poor connections at the stoplamp/auto trans 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 8

Go to Step 5

5 | Replace the stoplamp/auto trans shift lock control switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Did you complete the replacement? | -- | Go to Step 8 | --
6 | Inspect for poor connections at the auto trans 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 8 | Go to Step 7
7 | Replace the auto trans shift lock control solenoid. Refer to Automatic Transmission Shift Lock Control Actuator Replacement - On Vehicle in Steering Wheel and Column-Tilt. Did you complete the replacement? | -- | Go to Step 8 | --
8 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 1