Turn Signals: Description and Operation

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 55, and
- through 10 A fuse [No. 21, located in the fuse block (J/B)]
- to BCM terminal 42, and
- through 10 A fuse [No. 19, located in the fuse block (J/B)]
- to unified meter and A/C amp. terminal 21
- to combination meter terminal 24.

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. 12, located in the fuse block (J/B)]
- to unified meter and A/C amp. terminal 22, and
- through 10 A fuse [No. 14, located in the fuse block (J/B)]
- to combination meter terminal 23.

Ground is supplied
- to BCM terminal 52
- to unified meter and A/C amp. terminals 29 and 30
- to combination meter terminals 10, 11 and 12 l through grounds M57, M61 and M79.

LH Turn
When the turn signal switch is moved to the left position, BCM outputs turn signal from BCM terminal 45, interpreting it as turn signal is ON.

The BCM supplies power
- through terminal 45
- to front combination lamp LH terminal 5
- through front combination lamp LH terminal 10
- to grounds 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 unified meter and A/C amp 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, BCM outputs turn signal from BCM terminal 46, interpreting it as turn signal is ON.

The BCM supplies power
- through terminal 46
- to front combination lamp RH terminal 5
- through front combination lamp RH terminal 10
- to grounds E15 and E24, and
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 5
- to grounds B7 and B19.

BCM sends signal to unified meter and A/C amp 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 55, and
- through 10 A fuse [No. 21, located in the fuse block (J/B)]
- to BCM terminal 42, and
- through 10 A fuse [No. 19, located in the fuse block (J/B)]
- to unified meter and A/C amp. terminal 21
- to combination meter terminal 24.

Ground is supplied
- to BCM terminal 52
- to combination meter terminals 10, 11 and 12
- to unified meter and A/C amp. terminals 29 and 30
- through grounds M57, M61 and M79.

When the remote keyless entry system is triggered by input from the keyfob, BCM outputs turn signal from BCM terminals 45 and 46, interpreting it as turn signal is ON.

The BCM supplies power
- through terminals 45 and 46
- to front combination lamp LH and RH terminal 5
- through front combination lamp LH and RH terminal 10
- to grounds E15 and E24, and
- to rear combination lamp LH and RH terminal 3
- through rear combination lamp LH and RH terminal 5
- to grounds B7 and B19.

BCM 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 keyfob is used to activate the remote keyless entry system.

COMBINATION SWITCH READING FUNCTION
Refer to "Combination Switch Reading Function".

CAN Communication System Description
Refer to "INFORMATION BUS.