Was the Backup Lights System Check performed?

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Go to Step 2

Go to Backup Lamp System Check

1. Disconnect connector C1 at the backup lamp switch.
2. Remove the bulb at one backup lamp socket.
3. Connect a J 39200 DMM between backup lamp switch connector C1, cavity F, and the backup lamp socket, cavity A.

Is continuity present?

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Go to Step 4

Go to Step 3

Repair the open in CKT 24 (LT GRN) between the backup lamp switch and splice S409.

Are both backup lamps operative?

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Go to Backup Lamp System Check

Go to Step 4

1. Connect an unpowered test lamp between backup lamp switch connector C1, cavity C, and ground.
2. Place the ignition switch in the RUN position.

Does the test lamp light?

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Go to Step 5

Go to Step 7

Adjust the park/neutral position (PNP) switch.

Are both backup lamps operative?

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Go to Backup Lamp System Check

Go to Step 6

Replace the PNP switch.

Are both backup lamps operative?

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Go to Backup Lamp System Check

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Repair the open in CKT 139 (PNK) between the IP fuse block and the backup lamp switch.

Are both backup lamps operative?

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Go to Backup Lamp System Check

Go to Step 2