Tests AG
PINPOINT TEST AG: THE DAYTIME RUNNING LAMPS (DRL) ARE INOPERATIVETest AG1:
Test AG2-AG4:
Test AG5:
Normal Operation
Battery voltage is supplied to the daytime running lamp (DRL) module through circuit 434 (LB/BK). Switched power from central junction box (CJB) fuse 30 (5A) supplies power to the DRL module through circuit 932 (GY/WH). Input from the parking brake switch is sent through circuit 162 (LG/RD). Input from the low beam headlamps is received from circuit 13 (RD/BK). The reduced voltage that the DRL module sends out, flows through circuit 13 (RD/BK) to the low beam headlamps. Ground to the DRL module is provided through circuit 1203 (BK/LB).
Possible Causes
- circuit 12 (LG/BK) short to power
- circuit 162 (LG/RD) short to ground
- circuit 434 (LB/BK) open
- circuit 932 (GY/WH) open
- circuit 1203 (BK/LB) open
- DRL module