Diagnosis Procedure

OFF-ROAD LAMPS CIRCUIT


Description

The BCM controls the off-road lamps relay based on inputs from the combination switch, the off-road lamps switch and the off-road lamp cover sensors. When the off-road lamps relay is energized, power flows from the off-road lamps relay to the off-road lamps assembly.





OFF-ROAD LAMPS CIRCUIT


Diagnosis Procedure

Regarding Wiring Diagram information, OFF-Road Lamps.
1.CHECK OFF-ROAD LAMPS FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not open.





Is the fuse open?
YES - Repair the harness and replace the fuse.
NO - GO TO 2
2.CHECK OFF-ROAD LAMPS VOLTAGE





1. Turn the ignition switch OFF.
2. Disconnect the off-road lamps assembly connectors.
3. Remove the off-road lamps covers.
4. Turn the ignition switch ON.
5. Turn the high beam headlamps ON.
6. Turn the off-road lamps ON.
7. Check the voltage between the off-road lamp assembly connectors and ground.





Is the inspection result normal?
YES - GO TO 3
NO - GO TO 4
3.CHECK OFF-ROAD LAMPS GROUND CIRCUIT





Check continuity between the off-road lamps assembly harness connector terminal and ground.





Is the inspection result normal?
YES - Inspect the off-road lamp bulb.
NO - Repair the harness.
4.CHECK OFF-ROAD LAMPS RELAY
1. Turn the ignition switch OFF.
2. Disconnect the off-road lamps relay connector.
3. Check off-road lamps relay. Component Inspection.
Is the inspection result normal?
YES - GO TO 5
NO - Replace off-road lamps relay.
5.CHECK OFF-ROAD LAMPS RELAY POWER SUPPLY





1. Turn the ignition switch ON.
2. Check the voltage between the off-road lamps relay harness connector and ground.





Is the inspection result normal?
YES - GO TO 6
NO - Inspect harness or connector.
6.CHECK OFF-ROAD LAMPS POWER SUPPLY CIRCUIT
1. Turn the ignition switch OFF.





2. Check continuity between the off-road lamps relay harness connector (A) and off-road lamp assembly harness connectors (B).





Is inspection result normal?
YES - GO TO 7
NO - Inspect harness or connector.
7.CHECK OFF-ROAD LAMPS RELAY CONTROL CIRCUIT
1. Disconnect BCM connector.





2. Check continuity between the off-road lamps relay harness connector (A) and BCM harness connectors (B).





Is inspection result normal?
YES - Replace BCM. Service and Repair.
NO - Inspect harness or connectors.