For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Automatic Transmission Shift Lock Control System Check? | Go to Step 2 | Go to Automatic Transmission Shift Lock Control System Check
2 |

1. Place the manual selector in Park.
2. Turn the ignition switch ON.

Test for battery voltage at terminal 4 of the shift lock solenoid connector. Refer to Circuit Testing in Wiring Systems.

Is battery voltage present?

Go to Step 3

Go to Step 6

3 | Test for a short to voltage in the ORN/WHT wire between the stoplamp switch and the shift lock solenoid. Refer to Circuit Testing in Wiring Systems. Is a short to voltage present? | Go to Step 4 | Go to Step 5
4 | Repair the short to voltage in the ORN/WHT wire between the stoplamp switch and the shift lock solenoid. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Automatic Transmission Shift Lock Control System Check | --
5 | Replace the stoplamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Is the repair complete? | Go to Automatic Transmission Shift Lock Control System Check | --
6 | Replace the shift lock solenoid. Refer to Shift Lock Solenoid in Automatic Transmission. Is the repair complete? | Go to Automatic Transmission Shift Lock Control System Check | --