Circuit/System Verification
- Ignition - On/Vehicle - In Service Mode
- S33 Horn Switch - Not Pressed
Verify the scan tool parameter: Horn Switch = Inactive
- If not the specified state
Refer to: Circuit/System Testing - Test 1
- Go to next step: If the specified state
- If not the specified state
- Operate the component: S33 Horn Switch - Pressed
Verify the scan tool parameter: Horn Switch = Active
- If not the specified state
Refer to: Circuit/System Testing - Test 1
- Go to next step: If the specified state
- If not the specified state
- Perform the scan tool control function: Horn Relay Command - On and Off
Verify the component turns On and Off: P12L Horn - Left & P12R Horn - Right & The horn should emit a clear and even tone.
- If none of the components operate
Refer to: Circuit/System Testing - Test 2
- P12 Horn - Inoperative or If an abnormal noise is present
Refer to: Circuit/System Testing - Test 3
- Go to next step: If the component turns On and Off & If no abnormal noise is present
- If none of the components operate
- All OK.