B2602 Code - DRL Relay Control Circuit Shorted To Ground
Quick Answer
The Daytime Running Lamps (DRL) Relay is controlled by the Body Control Module (BCM). Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2602 indicates DRL Relay Control Circuit Shorted To Ground.
- Common causes
- Common causes include 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.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2602 Description
What are the Possible Causes of the DTC B2602?
- 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 to Fix the DTC B2602?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2602 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B2602 Acura — Parking Sensor EEPROM Error
- B2602 Buick — DRL Relay Control Circuit Shorted To Ground
- B2602 Cadillac — DRL Relay Control Circuit Shorted To Ground
- B2602 Chevrolet — DRL Relay Control Circuit Shorted To Ground
- B2602 GMC — DRL Relay Control Circuit Shorted To Ground
- B2602 Honda — Parking Sensor EEPROM Error
- B2602 Infiniti — Shift Position
- B2602 Lexus — Key Unlock Warning Switch Circuit Malfunction
- B2602 Nissan — Shift Position
- B2602 Pontiac — DRL Relay Control Circuit Shorted To Ground
- B2602 Toyota — Key Unlock Warning Switch Circuit Malfunction
Frequently Asked Questions about B2602 Code
1. What are the common symptoms of OBDII code B2602 (DRL Relay Control Circuit Shorted To Ground)?
- Common symptoms include non-functioning daytime running lights (DRLs), dim or flickering DRLs, or a warning light on the dashboard.
2. What can cause the DRL Relay Control Circuit to short to ground?
- Possible causes include damaged wiring, a faulty DRL relay, a short circuit in the DRL circuit, or a malfunctioning control module.
3. How can I diagnose the DRL Relay Control Circuit shorted to ground issue?
- Diagnose the issue by inspecting the wiring harness for damage, testing the DRL relay, checking for shorts in the circuit, and using a multimeter to measure voltage and continuity.
4. Can I still drive my vehicle with the B2602 trouble code?
- It is generally safe to drive your vehicle with this code, but it is recommended to address the issue promptly to ensure proper functioning of the DRLs.
5. How can I repair the DRL Relay Control Circuit shorted to ground problem?
- Repair options include repairing or replacing damaged wiring, replacing the faulty DRL relay, fixing any short circuits, or replacing a malfunctioning control module.
6. Are there any safety concerns associated with the DRL Relay Control Circuit issue?
- While the issue itself may not pose an immediate safety risk, non-functioning DRLs can reduce visibility, especially during daytime driving, potentially increasing the risk of accidents.
7. Can I reset the B2602 trouble code without fixing the underlying issue?
- It is possible to clear the trouble code using an OBDII scanner, but the code is likely to return if the root cause is not addressed.
8. Will fixing the DRL Relay Control Circuit issue improve my vehicle's overall performance?
- Fixing the issue will restore proper functionality of the DRLs, ensuring better visibility and compliance with safety regulations, but it may not directly impact overall performance.
9. How long does it typically take to repair the DRL Relay Control Circuit shorted to ground problem?
- Repair times can vary depending on the exact cause of the issue, but it may take anywhere from half an hour to a few hours to diagnose and fix the problem.
10. Is it necessary to visit a mechanic to address the B2602 trouble code, or can I fix it myself?
- While some DIY enthusiasts may be able to diagnose and fix this issue themselves, consulting a professional mechanic is recommended, especially if you are unsure about the repair process.
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