Scheme 1
ROOM LAMP TIMER OPERATION
When the interior room lamp switch is in the DOOR position and when all conditions below are met, the BCM begins timer control (maximum 30 seconds) for interior room lamp ON/OFF.
- When the front door LH is unlocked [with Intelligent Key, main power window and door lock/unlock switch, or front door lock assembly LH (key cylinder switch)].
- When a door opens --> closes and the Intelligent Key is not inserted in the key slot. Timer control is cancelled under the following conditions.
- When the front door LH is locked [with Intelligent Key, main power window and door lock/unlock switch, or front door lock assembly LH (key cylinder switch)].
- A door is opened (door switch turns ON).
- Intelligent Key is inserted into the key slot.
Interior lamp operational settings can be changed with the CONSULT.
Component Description
| Part name | Description |
|---|---|
| BCM | Provides power and ground and controls timer functions for the interior room lamps and cargo lamp. |
| Key switch and ignition knob switch (with Intelligent Key) | Provides key in ignition status to the BCM. |
| Key switch (without Intelligent Key) | |
| Door switches | Provides door OPEN/CLOSED status to the BCM. |
| Glass hatch ajar switch | Provides glass hatch OPEN/CLOSED status to the BCM. |
| Back door latch (door ajar switch) | Provides back door OPEN/CLOSED status to the BCM. |
| Power window and door lock/unlock switch RH | Provides door lock/unlock position switch RH status to the BCM. |
| Main power window and door lock/unlock switch | Provides door lock/unlock position switch LH status to the BCM. |
| Front door lock assembly LH (key cylinder switch) |
Scheme 2
System Description
The illumination lamps operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated) the BCM (body control module) receives input requesting the parking lamps to illuminate. This input is communicated to the IPDM E/R (intelligent power distribution module engine room) via the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. When energized, this relay directs power to the parking and illumination lamps, which then illuminate.
| Part name | Description |
|---|---|
| BCM | The BCM monitors the lighting switch position with the combination switch reading function. The BCM requests, via CAN communication, that the IPDM E/R activate the tail lamp relay. |
| IPDM E/R | The IPDM E/R activates the tail lamp relay based on inputs received from the BCM via the CAN communication network. |
| Combination meter (illumination control switch) | The illumination control switch is a part of the combination meter. The combination meter controls illumination intensity by varying ground to the illumination lamps based on the illumination control switch position. |
| Combination switch (lighting and turn signal switch) | The combination switch provides input to the BCM about the lighting switch position. |
Description
Provides the battery saver output/power supply. Also cuts the power supply when the interior room lamp battery saver is activating.
Controls the following interior room lamps (ground side) by PWM signal
- Front room/map lamp assembly
- Personal lamp 2nd row (with personal lamp 2nd row)
- Room lamp 2nd row (without personal lamp 2nd row)
Note. PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Controls the cargo lamp (ground side) to turn the cargo lamp ON and OFF.
Controls the ignition keyhole illumination (ground side) to turn the ignition keyhole illumination ON and OFF.
OPERATION PROCEDURE
- Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
- Use the Intelligent Key or mechanical key to turn the ignition switch to the "ACC" position. At this time, the steering lock will be released.
- Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
- Perform the necessary repair operation.
- When the repair work is completed, return the ignition switch to the "LOCK" position before connecting the battery cables. (At this time, the steering lock mechanism will engage.)
- Perform a self-diagnosis check of all control units using CONSULT.