Scheme 1
Interior Room Lamp ON Operation
- BCM always turns the interior room lamp ON when any door opens.
- BCM activates the interior room timer in any of the following conditions to turn the interior room lamp ON for a period of time. Any door opens before all doors close. Ignition switch is turned ON --> OFF. Any door unlock signal is detected when all doors close with ignition switch OFF.
Note. Restart the timer if new condition is input during the timer operating time.
Interior Room Lamp OFF Operation
BCM stops the timer in any of the following conditions to turns the interior room lamp OFF.
- The interior room lamp timer operating time is expired.
- Ignition switch position is other than OFF with all doors close.
- Any door lock operation is detected with all doors close.
Puddle Lamp Timer Basic Operation
- BCM controls the ground to turn the puddle lamp ON.
- The puddle lamp turns ON and OFF by the puddle lamp timer.
- BCM judges the vehicle condition with the following items. It activates the puddle lamp timer. Ignition switch status Door switch signal (ALL) Door lock/unlock signal (Remote keyless entry receiver, each request switch, key cylinder lock/unlock switch, door lock/unlock switch)
Puddle Lamp ON Operation
BCM activates the puddle lamp timer in any of the following conditions to turn the puddle lamp ON for a period of time.
- Any door opens.
- Any door opens before all doors close.
- Ignition switch is turned ON --> OFF.
- Any door unlock signal is detected when all doors close with ignition switch OFF.
Note. Restart the timer if new condition is input during the timer operating time.
Puddle Lamp OFF Operation
BCM stops the timer in any of the following conditions to turns the puddle lamp OFF.
- The puddle lamp timer operating time is expired.
- The interior room lamp OFF conditions.
- The interior room lamp timer operating time is expired.
Component Description
| Part | Description |
|---|---|
| BCM | Activates the interior room lamp timer depending on the vehicle condition to turn the interior room lamp ON/OFF. Activates the puddle lamp timer depending on the vehicle condition to turn the puddle lamp ON/OFF. Turns the step lamp ON/OFF according to any door switch status. |
| Remote keyless entry receiver | Receives the lock/unlock signal from keyfob. Transmits the lock/unlock signal to BCM. |
| Request switch Key cylinder lock/unlock switch Door lock/unlock switch | Inputs the lock/unlock signal to BCM. |
| Door switch | Inputs the door switch signal to BCM. |
PARTS DESCRIPTION CHART
Scheme 2
| Part | Description |
|---|---|
| BCM | Operates the interior room lamp battery saver depending on the vehicle condition to cut the interior room lamp power supply. |
| Remote keyless entry receiver | Receives the lock/unlock signal from keyfob. Transmits the lock/unlock signal to BCM. |
| Request switch Key cylinder lock/unlock switch Door lock/unlock switch | Inputs the lock/unlock signal to BCM. |
| Door switch Back door switch | Inputs a switch signal to BCM. |
| Key slot | Inputs the key switch status to BCM. |
PARTS DESCRIPTION CHART
Scheme 3
| Part | Description |
|---|---|
| BCM | Detects each switch condition by the combination switch reading function. Judges the illumination lamp ON/OFF status depending on the vehicle condition. And then it transmits position light request signal to IPDM E/R and combination meter. [with CAN communication, through the unified meter and A/C amp.] |
| IPDM E/R | Controls the integrated relay according to the request from BCM (with CAN communication). |
| Combination meter | Enters in nighttime mode according to the request from BCM (with CAN communication). Controls the each illumination in the nighttime mode. Refer to " METER ILLUMINATION CONTROL : SYSTEM DIAGRAM ". |
| Combination switch (Lighting & turn signal switch) | Refer to " SYSTEM DIAGRAM ". |
PARTS DESCRIPTION CHART
Description
Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery saver activating.
Controls each interior room lamp (ground side) by PWM signal.
Note. PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Controls the step lamp (ground side) to turn the step lamp ON and OFF.
Controls the puddle lamp (ground side) to turn the puddle lamp ON and OFF.
Provides the power supply and the ground to control the push-button ignition switch illumination.
HIGH FLASHER OPERATION
BCM detects the turn signal lamp circuit status by the current value.
BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal lamp operating.
Note. The blinking speed is normal while activating the hazard warning lamp.