Schematic Reference: Body Rear End Schematics

Did you perform the Body Rear End Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Body Rear End

1. Close the cargo doors or the liftgate and liftglass.
2. Turn the ignition ON.

Is the cargo door ajar message displayed?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

1. Install a scan tool.
2. Observe the Cargo Door Ajar Switch parameter in the BCM Inputs data list.

Does the scan tool display the switch parameter as Active?

Go to Step 4

Go to Step 8

Disconnect the body harness to liftgate harness inline connector C901, or the body harness to cargo door contact plate connectors.

Does the scan tool display the switch parameter as Active?

Go to Step 6

Go to Step 5

Test the liftgate ajar switch signal circuit in the liftgate or cargo door harnesses for a short to ground. Refer to Circuit Testing and Testing for Short to Ground in Wiring Systems.

Did you find and correct the condition?

Go to Step 12

Go to Step 10

Test the liftgate ajar switch signal circuit for a short to ground. Refer to Circuit Testing and Testing for Short to Ground in Wiring Systems.

Did you find and correct the condition?

Go to Step 12

Go to Step 7

Inspect for poor connections at the harness connector of the body control module (BCM). 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 12

Go to Step 9

Inspect for poor connections at the harness connector of the instrument panel cluster. 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 12

Go to Step 11

Important: When replacing the BCM refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 12

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Replace the faulty cargo door or liftgate ajar switch. Refer to Liftgate Latch Replacement or Door Latch Replacement .

Did you complete the replacement?

Go to Step 12

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Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.

Did you complete the replacement?

Go to Step 12

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3