Turn Signals: Description and Operation

TURN SIGNAL AND HAZARD WARNING LAMPS

System Description

OUTLINE

Power is supplied at all times
- through 50 A fusible link (letter g, located in the fuse and fusible link box)
- to BCM (body control module) terminal 70, and
- through 10 A fuse [No. 19, located in the fuse block (J/B)]
- to combination meter terminal 3.

TURN SIGNAL OPERATION
When the ignition switch is in the ON or START position, power is supplied
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM terminal 38, and
- through 10 A fuse [No. 14, located in the fuse block (J/B)]
- to combination meter terminal 16.

Ground is supplied
- to BCM terminal 67 and
- to combination meter terminals 13 and 23
- through grounds M57, M61 and M79.

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 (turn signal) terminal 6
- through front combination lamp LH (turn signal) terminal 5, and
- to rear combination lamp LH (turn signal) terminal 4
- through rear combination lamp LH (turn signal) terminal 5
- to grounds E9, E15 (all) and E24 (VQ40DE engine only).

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 (turn signal) terminal 6
- through front combination lamp RH (turn signal) terminal 5, and
- to rear combination lamp RH (turn signal) terminal 4
- through rear combination lamp RH (turn signal) terminal 5
- to grounds E9, E15 (all) and E24 (VQ40DE engine only).

BCM sends signal to combination meter through CAN communication lines, and turns on turn signal indicator lamp within combination meter.

REMOTE KEYLESS ENTRY SYSTEM OPERATION

Power is supplied at all times
- through 50 A fusible link (letter g, located in the fuse and fusible link box)
- to BCM terminal 70, and
- through 10 A fuse [No. 19, located in the fuse block (J/B)]
- to combination meter terminal 3.

Ground is supplied
- to BCM terminal 67 and
- to combination meter terminals 13 and 23
- through grounds M57, M61 and M79.

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 (turn signal) terminal 6
- through front combination lamp LH and RH (turn signal) terminal 5, and
- to rear combination lamp LH and RH (turn signal) terminal 4
- through rear combination lamp LH and RH (turn signal) terminal 5
- to grounds E9, E15 (all) and E24 (VQ40DE engine only).

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 BCS-3, "COMBINATION SWITCH READING FUNCTION". Description and Operation

CAN Communication System Description
Refer to LAN-22, Information Bus. Information Bus