B2339

B2339-HORN SWITCH STUCK-CCN





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
Continuously.

- Set Condition:
The Cluster senses that the Horn switch is in the Set position for greater than 50 seconds.





Diagnostic Test

1. VERIFY DTC B2339 - HORN SWITCH STUCK IS ACTIVE
With the scan tool, erase CCN DTCs.
Operate the Horn Switch several times.
Wait 1 minute.
With the scan tool, read CCN DTCs.
Does the scan tool display active DTC B2339-HORN SWITCH STUCK?

Yes

- Go to 2

No

- Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, corroded, or contaminated terminals.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. HORN SWITCH




WARNING: Turn the ignition off, disconnect the battery and wait two minutes before proceeding.

WARNING: Do not place an intact undeployed airbag face down on a hard surface, the airbag will propel into the air if accidentally deployed, and could results in serious or fatal injury.

Remove the Driver Airbag.
Disconnect the Steering Control Module C5 harness connector.

NOTE: Before proceeding, thoroughly inspect the wiring harness and connectors between the Horn Switch for a short to ground or to any other circuit.

Measure the resistance between the (X3) Horn Switch Sense circuit in the (Y13) Radio Control Return at the Steering Control Module C5 harness connector.
Is the resistance below 5.0 ohms?

Yes

- Replace the Horn Switch.

No

- Go to 3

3. CLOCKSPRING




Disconnect the Steering Control Module C2 harness connector.
With the scan tool, erase CCN DTCs.
Wait 1 minute.
With the scan tool, read CCN DTCs.
Does the scan tool display active DTC B2339 - HORN SWITCH STUCK?

Yes

- Go to 4

No

- Replace the Steering Control Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.

4. (X3) HORN SWITCH SIGNAL CIRCUIT SHORT TO GROUND




Disconnect the Cluster C3 harness connector.
Measure the resistance between ground and the (X3) Horn Switch circuit.
Is the resistance below 5.0 ohms?

Yes

- Repair the (X3) Horn Switch 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