Without EVIC

B2339-HORN SWITCH STUCK - WITHOUT EVIC

For a complete wiring diagram REFER to DIAGRAMS/ELECTRICAL .


- When Monitored:
Continuously

- Set Condition:
When the Cluster senses the Horn Switch input for over 30 seconds, this code will set.






Diagnostic Test


1. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC's
Operate the Horn Switch several times.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display HORN SWITCH STUCK?

Yes


- Go To 2


No


- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


2. HORN SWITCH SHORTED

WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Disconnect the Horn switch connector.
With the scan tool, erase DTC's
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display HORN SWITCH STUCK?

Yes


- Go To 3


No


- Replace the Horn Switch.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


3. STEERING CONTROL MODULE SHORTED




Disconnect the Steering Control Module C2 connector.
With the scan tool, erase DTC's
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display HORN SWITCH STUCK?

Yes


- Go To 4


No


- Inspect the Steering Control Module horn switch pigtail harness for a shorted condition, if OK replace the Steering Control Module.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


4. (X3) HORN SWITCH SENSE SHORTED TO (X920) RADIO CONTROL MUX RETURN




Turn the ignition off.
Disconnect the Cluster C2 and C3 connector.
Measure the resistance between (X3) Horn Switch Sense and the (X920) Radio Control Mux Return circuit.
Is the resistance below 1000.0 ohms?

Yes


- Repair the (X3) Horn Switch Sense circuit for a short to (X920) Radio Control Mux Return circuit.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


No


- Go To 5


5. (X3) HORN SWITCH SENSE SHORTED TO GROUND




Measure the (X3) Horn Switch Sense circuit to ground.
Is the resistance below 1000.0 ohms?

Yes


- Repair the Horn Switch Sense circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


No


- Replace the Cluster.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test