System Description

FRONT FOG LAMP
Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation.When the lighting switch is placed in the fog lamp position the BCM (body control module) receives input signal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The central processing unit of the IPDM E/R controls the front fog lamp relay coil. When activated, this relay directs power to the front fog lamps.

OUTLINE
Power is supplied at all times
- to front fog lamp relay, located in the IPDM E/R (intelligent power distribution module engine room), and
- through 15 A fuse [No. 72, located in the IPDM E/R (intelligent power distribution module engine room)]
- to CPU (central processing unit) in the IPDM E/R (intelligent power distribution module engine room)
- through 15 A fuse [No. 73, located in the IPDM E/R (intelligent power distribution module engine room)]

Power is also supplied at all times
- to terminal 7 of the BCM (body control module).
- through 50 A fusible link (letter F, located in the fuse and fusible link box)

When the ignition switch is in ON or START position, power is supplied
- to terminal 35 of the BCM (body control module).
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
- to CPU (central processing unit) in the IPDM E/R (intelligent power distribution module engine room)
- through 10 A fuse [No. 80, located in the IPDM E/R (intelligent power distribution module engine room)]

When the ignition switch is in ACC or ON position, power is supplied
- to terminal 36 of the BCM (body control module).
- through 10 A fuse [No. 6, located in the fuse block (J/B)]

Ground is supplied
- to BCM (body control module) terminal 8
- through grounds E17 and E43.
- to IPDM E/R (intelligent power distribution module engine room) terminal 14 and 45
- through grounds E17 and E43.

FOG LAMP OPERATION (FOR USA)
The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the fog lamp switch must be ON for fog lamp operation. With the fog lamp switch in the ON position, the CPU (central processing unit) of the IPDM E/R (intelligent power distribution module engine room) grounds the coil side of the fog lamp relay. The fog lamp relay then directs power
- to terminal 1 of front combination lamp LH
- through terminal 32 of the IPDM E/R, and
- to terminal 1 of front combination lamp RH
- through terminal 29 of the IPDM E/R.

Ground is supplied
- to terminal 4 of front combination lamp LH
- through grounds E17 and E43, and
- to terminal 4 of front combination lamp RH
- through grounds E17 and E43.

With power and grounds supplied, the front fog lamps illuminate.

FOG LAMP OPERATION (FOR CANADA)
The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the fog lamp switch must be ON for fog lamp operation. With the fog lamp switch in the ON position, the CPU (central processing unit) of the IPDM E/R (intelligent power distribution module engine room) grounds the coil side of the fog lamp relay. The fog lamp relay then directs power
- to terminal of front combination lamp LH
- through terminal 3 of daytime light relay-1
- to terminal 5 and 2 of daytime light relay-1
- through terminal 32 of the IPDM E/R
- to terminal of front combination lamp RH
- through terminal 29 of the IPDM E/R.

Ground is supplied
- to terminal 4 of front combination lamp LH
- through terminal 7 of the daytime light control unit
- to terminal 9 of the daytime light control unit
- through grounds E17 and E43
- to terminal 4 of front combination lamp RH
- through grounds E17 and E43.

With power and grounds supplied, the front fog lamps illuminate.

COMBINATION SWITCH READING FUNCTION
Refer to "Combination Switch Reading Function".

EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), the fog lamp switch is ON, and the ignition switch is turned from ON or ACC to OFF, the battery saver control feature is activated. Under this condition, the fog lamps (and headlamps) remain illuminated for 5 minutes, then the fog lamps (and headlamps) are turned off.

Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.