For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Were you sent here from the Brake Transmission Shift Interlock System Check? | -- | Go to Step 2 | Go to Automatic Transmission Shift Lock Control System Check
2 |

1. Disconnect the shift lock control module connector.
2. Turn the ignition switch to the ON position.
3. Use a J 39200 . in order to measure the voltage from cavity 5 to chassis ground.

Is the voltage within the specified range?

10.0-14.0V

Go to Step 3

Go to Step 6

3 | Use a J 39200 . in order to measure the voltage from cavity 1 to chassis ground. Is the voltage within the specified range? | 10.0-14.0V | Go to Step 4 | Go to Step 7
4 | Use a J 39200 . in order to ensure the resistance from cavity 3 to chassis ground. Is the resistance within the specified range? | 0-2 ohms | Go to Step 5 | Go to Step 8
5 | Use a J 39200 . in order to easure the voltage from cavity 2 to chassis ground while depressing the brake pedal. Is the voltage within the specified range? | 10.0-14.0V | Go to Step 10 | Go to Step 9
6 | Repair the open in the BLK/YEL wire between the module and the ECU-IG fuse. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
7 | Repair the open in the GRY wire between the module and junction block 3. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
8 | Repair the open in the WHT/BLK wire between the module and junction block 3. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
9 | Repair the open in the GRN/WHT wire between the module and junction block 3. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
10 | Replace the shift lock control module. Refer to Shift Lock Control Module Replacement in Automatic Transmissions 3 Speed - MB3 or Shift Lock Control Module Replacement in Automatic Transmissions 4 Speed - MS7. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --