B2601

DTC B2601 DRL Stuck:

CIRCUIT DESCRIPTION
This is a trouble code (both current and history) that indicates a system problem has occurred that is preventing the Daytime Running Lamps (DRL) function from performing properly.

CONDITIONS FOR SETTING THE DTC
All of the following conditions must be met:
^ The Body Control Module (BCM) commands the DRL OFF.
^ The DRL Relay output is inactive.
^ The headlamp feedback is present for 5 seconds.

ACTION TAKEN WHEN THE DTC SETS
^ Stores DTC B2601 in the BCM memory.
^ The lowbeams are in DRL mode when the BCM commands the DRL to turn OFF.
^ The SERVICE VEHICLE SOON indicator illuminates.
^ The check gauges chime sounds

CONDITIONS FOR CLEARING THE DTC
^ The BCM goes to sleep and reinitializes with the fault cleared.
^ All of the BCM history codes clear after 100 ignition cycles (from OFF to ON) with no current codes active during the 100 ignition cycles.
^ Use the Scan Tool scan tool.

DIAGNOSTIC AIDS
^ All other DRL DTCs must be diagnosed before DTC B2601.
^ If the DTC is a history DTC, the problem may be intermittent. Perform the above tests while wiggling the wiring and connectors. This may often cause the malfunction to appear.

TEST DESCRIPTION
The numbers below refer to the numbers on the diagnostic table.
2. This step determines if the DRL Relay is operating properly.
5. This step determines a bad connection at the Body Control Module (BCM).
7. This stop determines an open in CKT 592 between the Body Control Module (BCM) and the underhood wiring harness junction block.