DRL Relay Control Circuit Shorted To Ground
Table of contents
B2602 Possible Causes
- Faulty Daytime Running Lamps (DRL) Relay
- Daytime Running Lamps (DRL) Relay harness is open or shorted
- Daytime Running Lamps (DRL) Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B2602?
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 B2602 code
The cost of diagnosing the B2602 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)
B2602 Description
The Daytime Running Lamps (DRL) Relay is controlled by the Body Control Module (BCM). Ignition positive voltage is applied to the DRL relay coil. The BCM grounds the DRL relay control circuit in order to turn on the DRL relay. When the DRL relay control circuit becomes shorted to ground without being commanded on by the BCM, DTC B2602 is set.
