For 1990-2009 cars

## Automatic Transmission Shift Lock Control Inoperative 4-Speed Automatic

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the On-Board Diagnostic (OBD) System Check performed? | -- | Go to Step 2 | Go to Automatic Transmission Shift Lock Control System Check
2 |

1. Turn the ignition switch to the ON position.
2. Attempt to move the manual selector from the P position.

Can you move the manual selector from the P position?

--

Go to Step 3

Go to Step 6

3 | Backprobe the transmission range switch connector with a J 35616-200 unpowered test lamp from cavity 7 to ground. Does the test lamp light? | -- | Go to Step 4 | Go to Step 5
4 | Repair the open in the YEL wire between the transmission range switch and the fuse block 2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
5 | Replace the transmission range switch. Refer to Transmission Range Switch Replacement in Automatic Transmission. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
6 |

1. Depress the brake pedal.
2. Press the manual selector button.
3. Move the manual selector out of the P position.

Can you move the manual selector from the P position?

--

Go to Automatic Transmission Shift Lock Control System Check

Go to Step 7

7 | Backprobe the stoplamp switch connector with a J 35616-200 unpowered test lamp from cavity 1 to ground. Does the test lamp light? | -- | Go to Step 8 | Go to Step 9
8 | Repair the open in the GRN wire between the fuse block 2 and the stoplamp switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
9 |

1. Backprobe the stoplamp switch connector with a J 35616-200 unpowered test lamp from cavity 3 to ground.
2. Press and hold the brake pedal.

Does the test lamp light?

--

Go to Step 10

Go to Step 12

10 | Inspect the stoplamp switch for the proper adjustment. Is the adjustment proper? | -- | Go to Step 11 | --
11 | Replace Stop Lamp Switch Replacement . Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
12 |

1. Backprobe the shift lock relay connector with a test lamp from cavity 1 to ground.
2. Press and hold the brake pedal.

Does the test lamp light?

--

Go to Step 14

Go to Step 13

13 | Repair the open in the GRN/WHT wire between the stoplamp switch and the shift lock relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
14 | With the transmission in the PARK position, backprobe the shift lock relay connector with a J 35616-200 unpowered test lamp from cavity 2 to ground. Does the test lamp light? | -- | Go to Step 15 | Go to Step 24
15 |

1. Disconnect the shift lock relay connector.
2. Test for continuity using a J 39200 digital multimeter (DMM) from cavity 3 to ground.

Is there continuity?

--

Go to Step 16

Go to Step 17

16 | Repair the open in the BLK wire between the shift lock relay and G200. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
17 |

1. Reconnect the shift lock relay.
2. Backprobe the connector with a test lamp from cavity 4 to ground.
3. Press and hold the brake pedal.
4. Observe the test lamp.

Does the test lamp light?

--

Go to Step 19

Go to Step 18

18 | Replace the shift lock relay. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
19 |

1. Disconnect the shift lock relay and the shift lock solenoid connectors.
2. Test for continuity using a J 39200 DMM from the shift lock relay connector cavity 4 to the shift lock solenoid connector cavity 2.

Is there continuity?

--

Go to Step 20

Go to Step 21

20 | Repair the open in the BLU/GRN wire between the shift lock relay and the shift lock solenoid. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
21 | Test for continuity using a J 39200 DMM from the shift lock solenoid connector cavity 1 to ground. Is there continuity? | -- | Go to Step 22 | Go to Step 23
22 | Repair the open in the BLK ground wire between the shift lock solenoid and G200. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
23 | Replace the shift lock solenoid. Refer to Shift Lock Solenoid Replacement. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
24 | Backprobe the transmission range switch connector with a J 35616-200 unpowered test lamp from cavity 7 to ground. Does the test lamp light? | -- | Go to Step 25 | Go to Step 3
25 | Repair the open in the BLU/RED wire between the transmission range switch and the shift lock relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
26 |

1. Disconnect the shift lock solenoid connector.
2. Connect a test lamp from the shift lock solenoid connector cavity 2 (harness side) to ground.

Does the test lamp light?

--

Go to Step 28

Go to Step 27

27 | Replace the shift lock solenoid. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
28 |

1. Disconnect the shift lock relay connector.
2. Connect a J 35616-200 unpowered test lamp from the shift lock relay connector cavity 4 to ground.

Does the test lamp light?

--

Go to Step 29

Go to Step 30

29 | Repair the short to voltage in the BLU/GRN wire between the shift lock relay 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 | --
30 |

1. Disconnect the stoplamp switch connector.
2. Connect a J 35616-200 unpowered test lamp from the stoplamp switch connector cavity 3 to ground.

Does the test lamp light?

--

Go to Step 31

Go to Step 32

31 | Repair the short to voltage in the GRN/WHT wire between the stoplamp switch and the shift lock relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
32 | Replace the stoplamp switch. Refer to Stop Lamp Switch Replacement . Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --

## Automatic Transmission Shift Lock Control Inoperative 3-Speed Automatic

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the On-Board Diagnostic (OBD) System Check performed? | -- | Go to Step 2 | Go to Automatic Transmission Shift Lock Control System Check
2 |

1. Turn the ignition switch to the ON position.
2. Attempt to move the manual selector from the P position.

Can you move the manual selector from the P position?

--

Go to Step 3

Go to Step 6

3 | Backprobe the transmission range switch connector with a J 35616-200 unpowered test lamp from cavity 6 to ground. Does the test lamp light? | -- | Go to Step 5 | Go to Step 4
4 | Repair the open in the YEL wire between the transmission range switch and the fuse block 2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
5 | Replace the transmission range switch. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
6 |

1. Depress the brake pedal.
2. Press the manual selector button.
3. Move the manual selector out of the P position.

Can you move the manual selector from the P position?

--

Go to Automatic Transmission Shift Lock Control System Check

Go to Step 7

7 | Backprobe the stoplamp switch connector with a J 35616-200 unpowered test lamp from cavity 1 to ground. Does the test lamp light? | -- | Go to Step 9 | Go to Step 8
8 | Repair the open in the GRN wire between the fuse block 2 and the stoplamp switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
9 |

1. Backprobe the stoplamp switch connector with a J 35616-200 unpowered test lamp from cavity 3 to ground.
2. Press and hold the brake pedal.

Does the test lamp light?

--

Go to Step 12

Go to Step 10

10 | Inspect the stoplamp for the proper adjustment. Is the adjustment proper? | -- | Go to Step 11 | --
11 | Replace the stoplamp switch. Refer to Stop Lamp Switch Replacement . Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
12 |

1. Backprobe the shift lock relay connector with a J 35616-200 unpowered test lamp from cavity 1 to ground.
2. Press and hold the brake pedal.

Does the test lamp light?

--

Go to Step 14

Go to Step 13

13 | Repair the open in the GRN/WHT wire between the stoplamp switch and the shift lock relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
14 | Backprobe the shift lock relay connector with a J 35616-200 unpowered test lamp from cavity 2 to ground. Does the test lamp light? | -- | Go to Step 16 | Go to Step 15
15 | Repair the open in the YEL/BLU wire between the fuse block and the shift lock relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
16 |

1. Disconnect the shift lock relay connector.
2. Test for continuity using a J 39200 digital multimeter (DMM) from cavity 3 to ground.

Is there continuity?

--

Go to Step 17

Go to Step 18

17 | Repair the open in the BLK wire between the shift lock relay and G200. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
18 |

1. Reconnect the shift lock relay connector.
2. Backprobe the connector with a J 35616-200 unpowered test lamp from cavity 4 to ground.
3. Press and hold the brake pedal while observing the test lamp.

Does the test lamp light?

--

Go to Step 20

Go to Step 19

19 | Replace the shift lock relay. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
20 |

1. Disconnect the shift lock relay and the shift lock solenoid connectors.
2. Test for continuity using a J 39200 DMM from the shift lock relay connector cavity 4 to the shift lock solenoid connector cavity 2.

Is there continuity?

--

Go to Step 21

Go to Step 22

21 | Repair the open in the BLU/GRN wire between the shift lock relay 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 | --
22 | Test for continuity using a J 39200 DMM from the shift lock solenoid connector cavity 1 to ground. Is there continuity? | -- | Go to Step 23 | Go to Step 24
23 | Repair the open in the BLK ground wire between the shift lock solenoid and G200. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --
24 | Replace the shift lock solenoid. Is the repair complete? | -- | Go to Automatic Transmission Shift Lock Control System Check | --