B2602

DTC B2602

CIRCUIT DESCRIPTION
The body control module (BCM) controls the DRL relay. The BCM grounds the DRL relay coil control circuit, which energizes the DRL relay.

CONDITIONS FOR RUNNING THE DTC
The BCM must not be commanding the DRL relay to energize.

CONDITIONS FOR SETTING THE DTC
- The BCM detects a short to ground or open in the DRL relay coil control circuit.
- The condition above must be present for more than 0.3 seconds.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B2602 in memory.

CONDITIONS FOR CLEARING THE DTC
- A current DTC B2602 will clear if the BCM no longer detects a short to ground or open in the DRL relay coil control circuit.
- A history DTC B2602 will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.

DIAGNOSTIC AIDS
- If the DTC B2602 is a history DTC, the fault may be intermittent.
- The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to ground or open in the DRL relay coil control circuit.
- The DRL relay coil is intermittently shorted to ground or open internally.
- The BCM is intermittently shorted to ground or open internally.

TEST

Steps 1-2:

Steps 3-9:

Steps 10-14: