Test A: The Daytime Running Lamps (DRL) Are Inoperative
PINPOINT TEST A: THE DAYTIME RUNNING LAMPS (DRL) ARE INOPERATIVEA1-A4:
A5-A7:
Normal Operation
The battery junction box (BJB) supplies voltage to the DRL relay at all times through circuit 30-LE7 (RD/BU). When the ignition switch is in the RUN position, the DRL relay coil is supplied voltage from the headlamp switch though circuit 15S-LE6 (GN/YE). The DRL relay coil is grounded through circuit 91-LE6 (BK/RD). When the DRL relay is energized, voltage is routed to the low beam relay through circuit 15S-LE8 (GN/RD) (DRL resistor). The voltage is then routed through the low beam relay to the low beam headlamps.
Possible Causes
- Fuse
- Circuit 15S-LE6 (GN/YE) open
- Circuit 15S-LE8 (GN/RD) open
- Circuit 30-LE7 (RD/BU) open
- Circuit 91-LE6 (BK/RD) open
- DRL relay
- Low beam relay
- Headlamp switch