1.CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT CONSULT-III ACTIVE TEST

1. Turn the ignition switch ON.
2. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
3. With operating the test item, check voltage between BCM harness connector and the ground.

Terminals | Test item | Voltage (Approx.)
(+) | (–)
BCM | Ground | BATTERY SAVER
Connector | Terminal
M119 | 4 | Off | 0 V
On | Battery voltage

Is the measurement value normal?
YES>>GO TO 2.
NO>>Replace BCM.
2.CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT

1. Turn the ignition switch OFF.
2. Disconnect the following connectors.

- Map lamp
- Vanity mirror lamp (LH)
- Vanity mirror lamp (RH)
- Trunk room lamp
- Step lamp (driver side)
- Step lamp (passenger side)

3. Check continuity between BCM harness connector and each interior room lamp harness connector.

BCM | Each interior room lamp | Continuity
Connector | Terminal | Connector | Terminal
M119 | 4 | Map lamp | R6 | 1 | Existed
Vanity mirror lamp (LH) | R2 | 2
Vanity mirror lamp (RH) | R3 | 2
Trunk room lamp | B42 | 1
Step lamp (driver side) | D23 | 1
Step lamp (passenger side) | D53 | 1

Does continuity exist?
YES>>GO TO 3.
NO>>Repair the harnesses or connectors.
3.CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM harness connector and the ground.

BCM | Ground | Continuity
Connector | Terminal
M119 | 4 | Not existed

Does continuity exist?
YES>>Repair the harnesses or connectors.
NO>>Check that each interior room lamp has no internal short circuit.