1

Inspect the stop lamps.

Do the stop lamps work?

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Go to Step 3

Go to Step 2

Repair the stop lamps before completing this diagnostic table.

Does the center high-mounted stop lamp (CHMSL) work after the stop lamps have been repaired?

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System OK

Go to Step 3

1. Remove the CHMSL lamp bulb.
2. Visually and physically check the CHMSL lamp bulb.

Is the lamp bulb defective?

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Go to Step 4

Go to Step 5

Replace the CHMSL lamp bulb.

Did you complete the replacement?

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System OK

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1. Disconnect the CHMSL connector.
2. Use an ohmmeter to measure the resistance between ground and the BK wire in the CHMSL connector.

Is the resistance equal to the specified value?

0 ohms

Go to Step 7

Go to Step 6

Repair the open circuit between ground and the BK wire in the CHMSL connector.

Did you complete the repair?

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System OK

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Repair the open circuit between the stop lamp switch and the CHMSL.

Did you complete the repair?

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System OK

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