Test B: The Daytime Running Lamps (DRL) Are On With the Ignition Switch Off
PINPOINT TEST B: THE DAYTIME RUNNING LAMPS (DRL) ARE ON WITH THE IGNITION SWITCH OFFB1-B2:
B2-B4:
B5:
Normal Operation
The battery junction box (BJB) supplies voltage to the DRL relay at all times through circuit 30-LE7 (RD/BU). The headlamp switch receives voltage from circuit 15-LE29 (GN/BK) when the ignition switch is in the RUN position. The headlamp switch routes the voltage to the DRL relay coil 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
- Circuit 15S-LE6 (GN/YE) short to voltage
- Circuit 15S-LE8 (GN/RD) short to voltage
- Circuit 15-LE29 (GN/BK) short to voltage
- DRL relay
- Headlamp switch