Schematic Reference: Interior Lights Schematics

Did you review the interior lighting operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

1. Place the dome lamp switch in the ON position.
2. Place the dome lamp switch in the DOOR position and open the driver's door.

Does the dome lamp illuminate for both actions?

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

Go to Step 3

Is the dome lamp inoperative in both switch positions?

Go to Step 5

Go to Step 4

Is the dome lamp inoperative from the ON switch position only?

Go to Step 6

Go to Step 7

1. Disconnect the dome lamp harness connector.
2. Probe the battery positive voltage circuit of the dome lamp with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 9

Go to Step 11

1. Disconnect the dome lamp harness connector.
2. Connect a test lamp between the battery positive voltage circuit of the dome lamp and the ground circuit of the dome lamp.

Does the test lamp illuminate?

Go to Step 9

Go to Step 12

1. Disconnect the door jamb switch.
2. Connect a 20 amp fused jumper wire between the dome lamp low control circuit of the door jamb switch and a good ground.
3. Place the dome lamp switch in the DOOR position.

Does the dome lamp illuminate?

Go to Step 10

Go to Step 8

1. Leave the fused jumper wire connected.
2. Disconnect the harness connector of the dome lamp.
3. Connect a test lamp between the battery positive voltage circuit of the dome lamp and the dome lamp low control circuit.

Does the test lamp illuminate?

Go to Step 9

Go to Step 13

Inspect for poor connections at the harness connector of the dome 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 16

Go to Step 14

Inspect for poor connections at the harness connector of the door jamb 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 16

Go to Step 15

Repair an open, high resistance, or short to ground in the battery positive voltage circuit of the dome lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 16

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Repair an open or high resistance in the ground circuit of the dome lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 16

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Repair an open or high resistance in the dome lamp low control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 16

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Replace the dome lamp assembly. Refer to Dome Lamp Replacement .

Did you complete the replacement?

Go to Step 16

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Replace the door jamb switch. Refer to Front Side Door Jamb Switch Replacement in Doors.

Did you complete the replacement?

Go to Step 16

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3