System Description

TURN SIGNAL AND HAZARD WARNING LAMPS


Schematic










TURN SIGNAL AND HAZARD WARNING LAMPS


System Description


OUTLINE
Power is supplied at all times
- through 50A fusible link (letter j, located in the fuse and fusible link box)
- to BCM (body control module) terminal 70, and
- through 15A fuse [No. 3, located in the fuse block (J/B)]
- to BCM terminal 57, and
- through 15A fuse [No. 19, located in the fuse block (J/B)]
- to combination meter terminal 40.
When the ignition switch is in the ON or START position, power is supplied
- through 10A fuse [No. 16, located in the fuse block (J/B)]
- to BCM terminal 38, and
- through 10A fuse [No. 14, located in the fuse block (J/B)]
- to combination meter terminal 38.
When the ignition switch is in the ACC or ON position, power is supplied
- through 10A fuse [No. 4, located in the fuse block (J/B)]
- to BCM terminal 11.
Ground is supplied
- to BCM terminal 67 and
- to combination meter terminal 20
- through grounds M57, M61 and M79.

TURN SIGNAL OPERATION

LH Turn
When the turn signal switch is moved to the left position, the BCM, interpreting it as turn signal is ON, outputs turn signal from BCM terminal 60.
The BCM supplies power
- through BCM terminal 60
- to front combination lamp LH terminal 7
- through front combination lamp LH terminal 6
- to grounds E9, E15 and E24, and
- to rear combination lamp LH terminal 3
- through rear combination lamp LH terminal 5
- to grounds B7 and B19.
BCM sends signal to combination meter through CAN communication lines and turns on turn signal indicator lamp within combination meter.

RH Turn
When the turn signal switch is moved to the right position, the BCM, interpreting it as turn signal is ON, outputs turn signal from BCM terminal 61.
The BCM supplies power
- through BCM terminal 61
- to front combination lamp RH terminal 7
- through front combination lamp RH terminal 6
- to grounds E9, E15 and E24, and
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 5
- to grounds B117 and B132.
BCM sends signal to combination meter through CAN communication lines and turns on turn signal indicator lamp within combination meter.

HAZARD LAMP OPERATION
When the hazard switch is depressed, ground is supplied
- to BCM terminal 29
- through hazard switch terminal 2
- through hazard switch terminal 1
- through grounds M57, M61 and M79.
When the hazard switch is depressed, the BCM, interpreting it as hazard warning lamps are ON, outputs turn signal from BCM terminals 60 and 61.
The BCM supplies power
- through BCM terminals 60 and 61
- to front combination lamp LH and RH terminal 7
- through front combination lamp LH and RH terminal 6
- to grounds E9, E15 and E24, and
- to rear combination lamp LH terminal 3
- through rear combination lamp LH terminal 5
- to grounds B7 and B19, and
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 5
- to grounds B117 and B132.
BCM sends signal to combination meter through CAN communication lines and turns on turn signal indicator lamps within combination meter.

REMOTE KEYLESS ENTRY SYSTEM OPERATION
When the remote keyless entry system is triggered by input from the keyfob, the BCM, interpreting it as turn signal is ON, outputs turn signal from BCM terminals 60 and 61.
The BCM supplies power
- through BCM terminals 60 and 61
- to front combination lamp LH and RH terminal 7
- through front combination lamp LH and RH terminal 6
- to grounds E9, E15 and E24, and
- to rear combination lamp LH terminal 3
- through rear combination lamp LH terminal 5
- to grounds B7 and B19, and
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 5
- to grounds B117 and B132.
BCM sends signal to combination meter through CAN communication lines and turns on turn signal indicator lamps within combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps when keyfob is used to activate the remote keyless entry system.

COMBINATION SWITCH READING FUNCTION
Refer to BCM (Body Control Module) System.