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AutoCodes - Generic - B1897

B1897 Code - Horn Switch Circuit Failure

- Code Popularity: 3,897 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1897?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Horn Relay
  • Faulty Horn Switch
  • Horn Switch harness is open or shorted
  • Horn Switch circuit poor electrical connection
  • Faulty Clockspring
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B1897?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1897 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B1897 Description

The horn relay control and switched voltage is supplied by the Bussed Electrical Center (BEC). The Smart Junction Box (SJB) receives the horn signal from the horn switch (part of the steering wheel). When the horn switch is pressed, the ground is supplied from the clockspring to the vehicle harness. The SJB then activates the horn relay. Voltage is then sent to the horn, enabling the horns to sound. The ground is provided to the horns.

OBDII Code B1897 - Horn Switch Circuit Failure - AutoCodes.com
B1897 Code - Horn Switch Circuit Failure

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Code B1897 comments

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