B2339

B2339-HORN SWITCH STUCK





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Continuously.

- Set Condition:
The Cluster senses the Horn Switch Sense circuit is grounded for greater than 50 seconds.





1. VERIFY DTC B2339-HORN SWITCH STUCK IS ACTIVE
1. With the scan tool, erase CCN DTCs.
2. Operate the Horn Switch several times.
3. Wait 1 minute.
4. 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. 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.

1. Remove the Driver Airbag.
2. Disconnect the Horn Switch 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.

3. Measure the resistance between the (X3) Horn Switch Sense circuit and the horn switch pigtail ground (include the metal casing at the back side of the Airbag) at the 2 - way connector.

Is the resistance below 5.0 ohms?

Yes

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

No

- Go To 3

3. CLOCKSPRING




1. Disconnect the Clockspring C1 connector.
2. With the scan tool, erase CCN DTCs.
3. Wait 1 minute.
4. 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 Clockspring.
- Perform BODY VERIFICATION TEST. Body Verification Test.

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




1. Disconnect the Cluster C3 connector.
2. 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. Body Verification Test.

No

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