For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you review the operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms
2 | Disconnect the liftgate door lock (ajar indicator switch). Does the REAR HATCH AJAR message turn off on the IP reconfigurable telltale? | -- | Go to Step 3 | Go to Step 4
3 | Replace the liftgate door lock (ajar indicator switch). Refer to Liftgate Latch Replacement . Is the repair complete? | -- | Go to Step 6 | --
4 | Test the signal circuit of the trunk ajar switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 6 | Go to Step 5
5 | Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges, and Console. Important: Perform the set up procedure for the IP. Did you complete the replacement and the set up procedure? | -- | Go to Step 6 | --
6 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2