Step | Action | Yes | No |
|---|---|---|---|
SCHEMATIC REFERENCE: Horn Schematics | |||
1 | Did you perform the Horns Diagnostic System Check? | Go to Step 2 | |
2 |
Do the horns sound? | Go to Step 8 | Go to Step 3 |
3 | Connect a test lamp between the horn relay control circuit and battery positive voltage. Does the test lamp illuminate? | Go to Step 4 | Go to Step 9 |
4 |
Caution: Refer to SIR Caution in the Preface section. Important: The horn switch is part of the inflatable restraint steering wheel module.
Does the test lamp illuminate? | Go to Step 5 | Go to Step 10 |
5 | Disconnect the Dash Integration Module (DIM). Does the test lamp illuminate? | Go to Step 7 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the Dash Integration Module. 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 12 | Go to Step 11 |
7 | Repair a short to ground in the horn relay control circuit . Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | -- |
8 | Repair a short to voltage in the supply voltage circuit of the horns. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | -- |
9 | Replace the horn relay. Refer to Horn Relay Replacement . Did you complete the replacement? | Go to Step 12 | -- |
10 |
Caution: Refer to SIR Caution in the Preface section. Important: The horn switch is part of the steering wheel module inflatable restraint and is not serviceable separately. Replace the horn switch. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR. Did you complete the replacement? | Go to Step 12 | -- |
11 | Replace the Dash Integration Module (DIM). Refer to Dash Integration Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |
