Headlamps Control Circuit
Table of contents
B2575 CADILLAC Possible Causes
- Faulty Left Low Beam Headlamp
- Left Low Beam Headlamp harness is open or shorted
- Left Low Beam Headlamp circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B2575 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.
Tech Notes
- B2575 01 Headlamps Control Circuit Short to Battery
- B2575 02 Headlamps Control Circuit Short to Ground
- B2575 04 Headlamps Control Circuit Open
Cost of diagnosing the B2575 CADILLAC code
The cost of diagnosing the B2575 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)
B2575 CADILLAC Description
When the Body Control Module (BCM) senses a request for low beam headlamp illumination, the BCM sends a ground signal to the low beam headlamp relay through the headlamp low beam relay control circuit. The headlamp low beam relay will apply voltage to illuminate the headlamps. The Diagnostic Trouble Code (DTC) sets when the BCM receives a command to illuminate the low beam headlamps and the headlamp low beam relay control circuit is open or shorted to voltage or when the BCM does not receive a command to illuminate the low beam headlamps and the headlamp low beam relay control circuit is shorted to ground.