DTC B2603: DRL Relay Output Short To Battery: Description

DTC B2603 indicates that DRL relay output is shorted to battery. DTC B2603 will set when ignition switch is in RUN position, transaxle range switch is not in Park, DRL option is configured, DRL relay output is active and DRL feedback does not exist for 5 seconds.

When DTC B603 is set, DRL relay will turn off and SERVICE VEHICLE SOON indicator will illuminate. DTC B2603 can be cleared when fault state is exited when status of DRL returns to OFF. DTC B2603 can also be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.

DTC B2603 indicates that DRL relay output is shorted to battery. DTC B2603 will set when ignition switch is in RUN position, transaxle range switch is not in Park, DRL option is configured, DRL relay output is active and DRL feedback does not exist for 5 seconds.

When DTC B603 is set, DRL relay will turn off and SERVICE VEHICLE SOON indicator will illuminate. DTC B2603 can be cleared when fault state is exited when status of DRL returns to OFF. DTC B2603 can also be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.