Turn Signals: Description and Operation

System Description

OUTLINE
Power is supplied at all times
- through 50 A fusible link (letter M, located in the fuse and fusible link box)
- to BCM (body control module) terminal 55
- through 15 A fuse [No. 22, located in the fuse block (J/B)]
- to BCM (body control module) terminal 42
- through 10 A fuse [No. 20, located in the fuse block (J/B)]
- to rear combination lamp control unit terminal 1
- 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 15 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM (body control module) terminal 38
- through 10 A fuse [No. 14, located in the fuse block (J/B)]
- to combination meter terminal 7.

When the ignition switch is in the ACC or ON position, power is supplied
- through 10 A fuse [No. 6, located in the fuse block (J/B)]
- to BCM (body control module) terminal 11.

Ground is supplied
- to BCM (body control module) terminals 49 and 52
- through grounds M35, M45 and M85
- to rear combination lamp control unit terminal 7
- through grounds E21, E50 and E51
- to combination meter terminals 5, 6 and 15
- through grounds M35, M45 and M85.

LH Turn
When the turn signal switch is moved to the left position, BCM (body control module) output turn signal from BCM (body control module) terminal 45, interpreting it as turn signal is ON.

Connected from BCM (body control module) terminal 45 to front combination lamp LH terminal 4.

Turn signal lamp turns on
- through front combination lamp LH terminal 8
- to grounds E21, E50 and E51.

Connected form BCM (body control module) terminal 45 to rear combination lamp control unit terminal 4.

Rear turn signal (LED) turns on
- through rear combination lamp control unit terminal 11
- to rear combination lamp LH terminal 3
- through rear combination lamp LH terminal 4
- to rear combination lamp control unit terminal 10.

BCM (body control module) sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal indicator lamp with combination meter.

When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to and unified meter and A/C amp. unified meter and A/C amp. turn LED burnout status signal to BCM (body control module) through CAN communication lines for speeding up turn signal blinking.

RH Turn
When the turn signal switch is moved to the right position, BCM (body control module) output turn signal from BCM (body control module) terminal 46, interpreting it as turn signal is ON.

Connected from BCM (body control module) terminal 46 to front combination lamp RH terminal 4.

Turn signal lamp turns on
- through front combination lamp RH terminal 8
- to grounds E21, E50 and E51.

Connected form BCM (body control module) terminal 46 to rear combination lamp control unit terminal 5.

Rear turn signal (LED) turns on
- through rear combination lamp control unit terminal 9
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 4
- to rear combination lamp control unit terminal 8.

BCM (body control module) sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal indicator lamp with combination meter.

When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to and unified meter and A/C amp. unified meter and A/C amp. turn LED burnout status signal to BCM (body control module) through CAN communication lines for speeding up turn signal blinking.

REMOTE CONTROL ENTRY SYSTEM OPERATION
Power is supplied at all times
- through 50 A fusible link [letter M, located in the fuse and fusible link box]
- to BCM (body control module) terminal 55
- through 10 A fuse [No. 19, located in the fuse block (J/B)]
- to combination meter terminal 8
- through 10 A fuse [No. 20, located in the fuse block (J/B)]
- to rear combination lamp control unit terminal 1.

Ground is supplied
- to BCM (body control module) terminals 49 and 52
- through grounds M35, M45 and M85
- to rear combination lamp control unit terminal 7
- through grounds E21, E50 and E51
- to combination meter terminals 5, 6 and 15
- through grounds M35, M45 and M85.

When the remote control entry system is triggered by input from the key fob, BCM (body control module) output turn signal from BCM (body control module) terminals 45 and 46, interpreting it as turn signal is ON. Connected from BCM (body control module) terminals 45 and 46 to front combination lamp terminal 4.

Turn signal lamp turns on
- through front combination lamp terminal 8
- to grounds E21, E50 and E51.

Connected form BCM (body control module) terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.

Rear turn signal (LED) turns on
- through rear combination lamp control unit terminal 11
- to rear combination lamp LH terminal 3
- through rear combination lamp LH terminal 4
- to rear combination lamp control unit terminal 10
- through rear combination lamp control unit terminal 9
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 4
- to rear combination lamp control unit terminal 8.

BCM (body control module) sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal indicator lamp with combination meter.

With power and input supplied, the BCM controls the flashing of the hazard warning lamps when key fob is used to activate the remote control entry system.

COMBINATION SWITCH READING FUNCTION
Refer to "COMBINATION SWITCH READING FUNCTION". Body Control Module

CAN Communication System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit
Refer to "Information Bus".