Horn Relay Circuit
Table of contents
B2528 CADILLAC Possible Causes
- Faulty Horn Relay
- Horn Relay harness is open or shorted
- Horn Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B2528 CADILLAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B2528 CADILLAC code
The cost of diagnosing the B2528 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2528 CADILLAC Description
The vehicle horns are activated whenever the ground is applied to the horn relay coil through the horn relay control circuit. The ground may be applied by either of the following: Body Control Module (BCM) and Horn switch. The Diagnostic Trouble Code (DTC) sets when The horns are inoperative from the BCM and the horn switch.