Headlamp (For Canada) - Daytime Light System

System Description
Daytime light system turns on daytime light lamps while driving. Daytime light lamps are not turned on if engine is activated with parking brake applied. Release parking brake to turn on daytime light lamps. The lamps turn off when lighting switch is in the 2ND position or AUTO position (Headlamp is "ON") and when lighting switch is in the PASSING position. (Daytime light lamps are not turned off only by parking brake itself.)
A parking brake signal and engine run or stop signal are sent to BCM (body control module) by CAN communication line.

OUTLINE
Power is supplied at all times
- to ignition relay, located in the IPDM E/R (intelligent power distribution module engine room), and
- through 50 A fusible link (letter f, located in the fuse and fusible link box)
- to BCM terminal 70, and
- through 20 A fuse (No. 53, located in the IPDM E/R)
- to CPU (central processing unit) of the IPDM E/R, and
- through 10 A fuse [No. 19, located in the fuse block (J/B)]
- to combination meter terminal 8, and
- through 10 A fuse (No. 45, located in the IPDM E/R)
- to daytime light relay terminals 2 and 5.

When the ignition switch is in ON or START position, power is supplied
- to ignition relay, located in the IPDM E/R, and
- through 10 A fuse (No. 59, located in the fuse and relay box)
- to BCM terminal 38, and
- through 10 A fuse [No. 14, located in the fuse block (J/B)]
- to combination meter terminal 24.

Ground is supplied
- to BCM terminal 67 and
- to combination meter terminal 17
- through grounds M57, M61 and M79.

DAYTIME LIGHT OPERATION
With the engine running, the lighting switch in the OFF or 1ST position and parking brake released, the IPDM E/R receives input requesting the daytime lights illuminate. This input is communicated across the CAN communication lines. The CPU of the IPDM E/R controls the daytime light relay coil. When energized, this relay directs power
- through daytime light relay terminal 3
- to front combination lamp LH terminal 2
- through front combination lamp LH terminal 6
- to IPDM E/R terminal 55
- through 10 A fuse (No. 35, located in the IPDM E/R)
- through 10 A fuse (No. 34, located in the IPDM E/R)
- through IPDM E/R terminal 56
- to front combination lamp RH terminal 6.

Ground is supplied
- to front combination lamp RH terminal 2
- through grounds E9, E15 and E24.

With power and ground supplied, the daytime lights illuminate. The high beam headlamps are now wired in series and illuminate at a reduced intensity.

COMBINATION SWITCH READING FUNCTION
Refer to "COMBINATION SWITCH READING FUNCTION".

AUTO LIGHT OPERATION
For auto light operation, refer to "System Description" in AUTO LIGHT SYSTEM.

CAN Communication System Description
Refer to "INFORMATION BUS".