System Description

TURN SIGNAL AND HAZARD WARNING LAMPS


System Description


TURN SIGNAL OPERATION
With the ignition switch is in the ON or START position, power is supplied
- through 15A fuse [No. 1, located in fuse block (J/B)]
- to BCM (body control module) terminal 38, � through 10A fuse [No. 14, located in fuse block (J/B)]
- to combination meter terminal 12, � through 10A fuse [No. 12, located in fuse block (J/B)]
- to unified meter and A/C amp. terminal 53.
Ground is supplied
- to BCM terminal 52
- to combination meter terminals 9, 10 and 11
- to unified meter and A/C amp. terminals 55 and 71
- through grounds M16 and M70.

LH Turn Signal Lamp
When turn signal switch is moved to left position, BCM receives input signal requesting left turn signals to flash. BCM then supplies power
- through BCM terminal 45
- to front combination lamp LH (turn signal) terminal 10
- to side turn signal lamp LH terminal 1, and
- to rear combination lamp LH (turn signal) terminal 3.
Ground is supplied
- to front combination lamp LH (turn signal) terminal 9
- to side turn signal lamp LH terminal 2
- through grounds E22 and E43, � to rear combination lamp LH (turn signal) terminal 4
- through grounds B5, B40 and B131.
The BCM also supplies input to unified meter and A/C amp. terminals 56 and 72 across the CAN communication lines.
The unified meter and A/C amp. which received the turn indicator signal makes the left turn signal indicator turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the LH turn signal lamps.

RH Turn Signal Lamp
When turn signal switch is moved to right position, BCM receives input signal requesting right turn signals to flash. BCM then supplies power
- through BCM terminal 46
- to front combination lamp RH (turn signal) terminal 10
- to side turn signal lamp RH terminal 1, and
- to rear combination lamp RH (turn signal) terminal 3.
Ground is supplied
- to front combination lamp RH (turn signal) terminal 9
- to side turn signal lamp RH terminal 2
- through grounds E22 and E43, � to rear combination lamp RH (turn signal) terminal 4
- through grounds B5, B40 and B131.
The BCM also supplies input to unified meter and A/C amp. terminals 56 and 72 across the CAN communication lines.
The unified meter and A/C amp. which received the turn indicator signal makes the right turn signal indicator turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the RH turn signal lamps.

HAZARD LAMP OPERATION
Power is supplied at all times
- through 50A fusible link (letter F, located in fuse, fusible link and relay block)
- to BCM terminal 55, � through 10A fuse [No. 21, located in fuse block (J/B)]
- to BCM terminal 42
- to combination meter terminal 23, � through 10A fuse [No. 19, located in fuse block (J/B)]
- to unified meter and A/C amp. terminal 54.
When the hazard switch is depressed, ground is supplied
- to BCM terminal 29
- through multifunction switch terminal 6.
Ground is supplied
- to multifunction switch terminal 14
- to BCM terminal 52
- to combination meter terminals 9, 10 and 11
- to unified meter and A/C amp. terminals 55 and 71
- through grounds M16 and M70.
BCM then supplies power
- through BCM terminal 45
- to front combination lamp LH (turn signal) terminal 10
- to side turn signal lamp LH terminal 1
- to rear combination lamp LH (turn signal) terminal 3, � through BCM terminal 46
- to front combination lamp RH (turn signal) terminal 10
- to side turn signal lamp RH terminal 1
- to rear combination lamp RH (turn signal) terminal 3.
Ground is supplied
- to front combination lamp LH (turn signal) terminal 9
- to front combination lamp RH (turn signal) terminal 9
- to side turn signal lamp LH terminal 2
- to side turn signal lamp RH terminal 2
- through grounds E22 and E43, � to rear combination lamp LH (turn signal) terminal 4
- to rear combination lamp RH (turn signal) terminal 4
- through grounds B5, B40 and B131.
The BCM also supplies input to unified meter and A/C amp. terminals 56 and 72 across the CAN communication lines.
The unified meter and A/C amp. which received the turn indicator signal makes the left and right turn signal indicator turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps.

COMBINATION SWITCH READING FUNCTION
System Description.