Schematic Reference: Interior Lights Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

1

Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Open the rear compartment.

Does the rear compartment courtesy lamp operate properly?

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

Go to Step 3

Place the IP dimmer switch in the DOME position.

Do the courtesy lamps operate properly?

Go to Step 4

Go to Courtesy Lamps Inoperative

1. Disconnect the rear compartment courtesy lamp.
2. Connect a test lamp between the supply voltage circuit and the rear compartment lamp control circuit of the rear compartment courtesy lamp.

Did the test lamp illuminate?

Go to Step 8

Go to Step 5

Connect a test lamp between the supply voltage circuit of the rear compartment courtesy lamp and ground.

Did the test lamp illuminate?

Go to Step 6

Go to Step 11

1. Disconnect the rear compartment lid ajar switch.
2. Connect a test lamp between battery positive voltage and the ground circuit of the rear compartment lid ajar switch.

Did the test lamp illuminate?

Go to Step 7

Go to Step 12

1. Connect a fused jumper between the ground circuit and the trunk ajar switch signal circuit of the rear compartment lid ajar switch.
2. Using a test lamp connected to battery positive voltage, probe the rear compartment control circuit of the rear compartment lamp.

Did the test lamp illuminate?

Go to Step 9

Go to Step 10

Inspect for poor connections at the bulb of the rear compartment courtesy 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 15

Go to Step 13

Inspect for poor connections at the harness connector of the rear compartment lid ajar 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 15

Go to Step 14

Repair the high resistance or an open in the trunk ajar switch signal circuit of the rear compartment ajar switch . Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 15

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Repair the high resistance or an open in the supply voltage circuit of the rear compartment courtesy lamp . Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 15

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Repair the high resistance or an open in the ground circuit of the rear compartment lid ajar switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 15

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Replace the rear compartment courtesy lamp bulb. Refer to Rear Compartment Courtesy Lamp Replacement .

Did you complete the repair?

Go to Step 15

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Replace the rear compartment lid ajar switch. Refer to Rear Compartment Lid Latch Replacement in Body Rear End.

Did you complete the repair?

Go to Step 15

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2