Was the Horns System Check performed?

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Go to Step 2

Go to Horns System Check

Use a scan tool in order to command the horns off.

Did the horns turn off?

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Go to Step 4

Go to Step 3

1. Disconnect the horn relay.
2. Connect a test lamp between the horn relay connector terminal A6 and terminal B4.

Did the test lamp light?

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Go to Step 6

Go to Step 5

Refer to Body Control Module Diagnosis in Body Control System.

Is the repair complete?

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Go to Horns System Check

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1. Inspect the horn relay connector for clean and tight connections.
2. If OK, replace the horn relay.

Is the repair complete?

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Go to Horns System Check

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1. Inspect CKT 28 (BLK) for a short to ground.
2. If OK, repair or replace the horn switch.

Is the repair complete?

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Go to Horns System Check

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