For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 |

1. Disconnect the rear compartment lid ajar indication switch.
2. Connect a fused jumper between the switch connector terminal A and terminal B.

Are the courtesy lamps on?

--

Go to Step 3

Go to Step 2

2 | Connect a fused jumper from the switch connector terminal B to ground. Are the courtesy lamps on? | -- | Go to Step 5 | Go to Step 4
3 |

1. Check for a poor connection at the rear compartment lid ajar indication switch.
2. If the the connections are OK, replace the switch.

Is the repair complete?

--

System OK

--

4 |

1. Check for an open in circuit 737 between the switch and the BCM.
2. Check for a poor connection at the BCM connector C3 terminal D13.
3. If the the connection and circuit are OK, replace the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration

Is the repair complete?

--

System OK

--

5 | Repair the open in circuit 1550 between the switch and S470. Is the repair complete? | -- | System OK | --