■ CAUTION ■ Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected.

Symptom | Possible cause | Inspection item
All the following lamps are not turned ON.

- Map lamp
- Trunk room lamp
- Step lamp
- Vanity mirror lamp

- Harness between BCM and each interior room lamp
- BCM

Interior room lamp power supply circuit
Refer to Description.

- Interior room lamps are not turned ON even though the door is open.
  (It turns ON when turning the interior room lamp ON.)
- Interior room lamps are not turned OFF even though the door is closed.

- Harness between BCM and each door switch
- Harness between BCM and each interior room lamp
- BCM

Door switch circuit
Refer to Description.
Interior room lamp control circuit Refer to Description.
Interior room lamp timer does not activate. (It turns ON/ OFF when the door opens/closes.) | — | Check the interior room lamp setting. Refer to CONSULT-III Function (BCM - INT LAMP).
Step lamps (driver side and passenger side) are not turned ON. (The map lamp is turned ON.) |

- Harness between BCM and each step lamp
- BCM

Step lamp circuit
Refer to Description.
Step lamps (driver side and passenger side) are not turned OFF. (The map lamp is turned OFF.)

- Trunk room lamp is not turned ON.
  (The bulb is normal.)
- Trunk room lamp is not turned OFF.

- Harness between BCM and trunk room lamp switch
- Harness between BCM and trunk room lamp
- BCM

Trunk room lamp switch circuit
Refer to Description.
Trunk room lamp circuit Refer to Description.
Push-button ignition switch illumination does not illuminate. |

- Harness between BCM and push-button ignition switch
- BCM

Push-button ignition switch illumination circuit
Refer to Description.
Interior room lamp battery saver does not activate. | — | Check the interior room lamp battery saver setting. Refer to CONSULT-III Function (BCM - BATTERY SAVER).