OBD Guide
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B2602

DRL Relay Control Circuit Shorted To Ground

B2602 is an OBD-II diagnostic trouble code meaning: DRL Relay Control Circuit Shorted To Ground. Common causes: short circuit in wiring harness, faulty drl relay. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Daytime running lights (DRL) do not work
  • Flashing or unstable DRL operation
  • The malfunction indicator on the dashboard lights up

Causes

  • Short circuit in wiring harness
  • Faulty DRL relay
  • Damage to the control circuit in the fuse box
  • Problems in the control unit

How to Fix

  1. Check the integrity of the wiring harness in the DRL control circuit
  2. Check the operation of the DRL relay
  3. Examine the control circuit diagram for short circuits.
  4. If necessary, replace the relay or repair the wiring harness
  5. Reset the error using a diagnostic scanner

Related codes

B2600B2601B2603

FAQ

What does the B2602 code mean?

B2602 is an OBD-II diagnostic trouble code that indicates: DRL Relay Control Circuit Shorted To Ground

What causes a B2602 error code?

The most common causes of B2602 include: Short circuit in wiring harness; Faulty DRL relay; Damage to the control circuit in the fuse box; Problems in the control unit.

How do I fix a B2602 diagnostic trouble code?

To fix B2602: Check the integrity of the wiring harness in the DRL control circuit. Check the operation of the DRL relay. Examine the control circuit diagram for short circuits.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2602?

Limited driving only, diagnose soon

How much does it cost to fix B2602?

The estimated repair cost for B2602 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat