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 | Turn ON the ignition, with the engine OFF. Does the battery indicator turn on during bulb check in the IP reconfigurable message display? | -- | Go to Step 3 | Go to Step 4
3 | Test the signal circuit of the trunk ajar switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 5
4 | 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 8 | --
5 | Test the ground circuit of the trunk ajar switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 6
6 | Inspect for poor connections at the liftgate door lock (ajar indicator switch). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 7
7 | Replace the liftgate door lock (ajar indicator switch). Refer to Liftgate Latch Replacement . Did you complete the replacement? | -- | Go to Step 8 | --
8 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2