Steering Wheel Controls Illegal Resistance Value
Table of contents
B2815 CADILLAC Possible Causes
- Faulty Steering Wheel Control (SWC) Switch
- Steering Wheel Control (SWC) Switch harness is open or shorted
- Steering Wheel Control (SWC) Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B2815 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 B2815 CADILLAC code
The cost of diagnosing the B2815 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)
B2815 CADILLAC Description
The Steering Wheel Controls are momentary contact switches that connect a series of resistors so that each switch selection corresponds to a fixed resistance value. The Body Control Module (BCM) determines which switch has been pressed by the voltage drop across the corresponding resistance value. The BCM supplies voltage to the steering wheel controls through the rear wiper/washer switch supply voltage circuit. The BCM monitors the switch voltage on the remote radio control signal circuit. The Diagnostic Trouble Code (DTC) sets when the BCM detects a switch voltage that is higher than normal.