Rear Compartment Lamp Inoperative. Cadillac CTS

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2003 🢒 CTS - RHD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Rear Compartment Lamp Inoperative

Step	Action	Yes	No
Schematic Reference: Interior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views
1	Did you perform the Lighting Systems Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Lighting Systems
2	Turn ON the ignition, with the engine OFF. Open the rear compartment lid. Does the rear compartment lamp operate properly?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn OFF the ignition. Disconnect the rear compartment lamp. Turn ON the ignition, with the engine OFF. Connect a test lamp between the courtesy lamp supply voltage circuit of the rear compartment lamp and a good ground. Does the test lamp illuminate?	Go to Step 4	Go to Step 8
4	Connect a test lamp between the courtesy lamp supply voltage circuit of the rear compartment lamp and the trunk lamp control circuit. Does the test lamp illuminate?	Go to Step 6	Go to Step 5
5	Test for an open or high resistance in the trunk lamp control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 7
6	Inspect for poor connections at the rear compartment lamp. 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 11	Go to Step 9
7	Inspect for poor connections at the harness connector of the rear compartment lid release actuator. 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 11	Go to Step 10
8	Repair an open or high resistance in the courtesy lamp supply voltage circuit of the rear compartment lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 11	--
9	Replace the rear compartment lamp. Refer to Rear Compartment Courtesy Lamp Replacement . Did you complete the replacement?	Go to Step 11	--
10	Replace the rear compartment lid release actuator. Refer to Rear Compartment Lid Latch Replacement in Body Rear End. Did you complete the replacement?	Go to Step 11	--
11	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2