Turn Signals: Description and Operation

TURN SIGNAL AND HAZARD WARNING LAMPS

Turn Signal And Hazard Warning Lamps Schematic:

TURN SIGNAL AND HAZARD WARNING LAMPS Schematic

System Description

OUTLINE
Power is supplied at all times
- through 50 A fusible link (letter f, 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 8.

TURN SIGNAL OPERATION
When the ignition switch is in the ON or START position, power is supplied
- 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.

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 5,
- to door mirror LH terminal 15 (with automatic drive positioner), and
- to rear combination lamp LH terminal 4.

Ground is supplied
- to front combination lamp LH terminal 4
- through grounds E9, E15 and E24,
- to door mirror LH terminal 11 (with automatic drive positioner)
- through grounds M57, M61 and M79, and
- to rear combination lamp LH terminal 6
- through 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 5,
- to door mirror RH terminal 15 (with automatic drive positioner), and
- to rear combination lamp RH terminal 4.

Ground is supplied
- to front combination lamp RH terminal 4
- through grounds E9, E15 and E24,
- to door mirror RH terminal 11(with automatic drive positioner)
- through grounds M57, M61 and M79, and
- to rear combination lamp terminal 6
- through grounds B117 and B132.

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 f, 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 8.

Ground is supplied
- to BCM terminal 67 and
- to combination meter terminal 17
- 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 terminal 5,
- to door mirror LH and RH terminal 15 (with automatic drive positioner), and
- to rear combination lamp LH and RH terminal 4.

Ground is supplied
- through front combination lamp LH and RH terminal 4
- to grounds E9, E15 and E24,
- through door mirror LH and RH terminal 11(with automatic drive positioner)
- to grounds M57, M61 and M79,
- through rear combination lamp LH terminal 6
- to grounds B7 and B19, and
- through rear combination lamp RH terminal 6
- 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 "COMBINATION SWITCH READING FUNCTION" in "Body Control System".

CAN Communication System Description
Refer to LAN-4, "Information bus". Information Bus