B2339-HORN SWITCH STUCK
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For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
The Horn Switch is connected to the Right Steering Switch. The switching status is transferred to the Cluster by way of the LIN bus, a serial sub-bus. The Cluster converts the data to a CAN Bus signal and sends the message to the corresponding module on the bus.
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When Monitored:
Continuously with the ignition on.
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Set Condition:
The Cluster senses that the Horn Switch is pressed for greater than 45 seconds.
Possible Causes |
|---|
| HORN SWITCH |
| RIGHT STEERING WHEEL SWITCH (SPEED CONTROL SWITCH) |
CHECK FOR AN ACTIVE DTC
| 1. | Turn the ignition on. |
| 2. | With the scan tool, read DTCs. |
Does the scan tool display this DTC as active?
Yes
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WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
WARNING: Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.
NOTE: Visually and physically inspect the wiring harness between the Horn Switch harness connector and the Right Steering Wheel Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test. - Replace the Horn Switch in accordance with the Service Information. Once the switch has been replaced, press it twice to initialize it. If problem still persists, replace the Right Steering Wheel Switch (Speed Control Switch) in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).
No
- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).