Schematic Reference: Interior Lights Schematics

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 11

Go to Step 5

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

Did the test lamp illuminate?

Go to Step 6

Go to Step 15

Is the vehicle equipped with a rear compartment occupant sensor?

Go to Step 7

Go to Step 9

1. Disconnect the rear compartment occupant sensor.
2. Connect a test lamp between battery voltage and the trunk ajar switch signal circuit of the rear compartment occupant sensor.

Did the test lamp illuminate?

Go to Step 8

Go to Step 9

1. Connect a fused jumper between the rear compartment lamp control circuit ant the trunk ajar switch signal of the rear compartment occupant sensor.
2. Connect a test lamp between battery voltage and the rear compartment lamp control circuit of the rear compartment lamp.

Did the test lamp illuminate?

Go to Step 12

Go to Step 16

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

Did the test lamp illuminate?

Go to Step 10

Go to Step 17

Connect a fused jumper between the ground circuit and the trunk ajar switch signal circuit of the rear compartment lid ajar switch.

Did the test lamp illuminate?

Go to Step 13

Go to Step 14

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 21

Go to Step 18

Inspect for poor connections at the rear compartment occupant sensor. 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 21

Go to Step 20

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 21

Go to Step 19

Did you complete the repair?

Go to Step 21

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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 21

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Repair the high resistance or an open in the control 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 21

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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 21

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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 21

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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 21

--

Replace the rear compartment occupant sensor. Refer to in Body Rear End.

Did you complete the replacement?

Go to Step 21

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2