Hazard Warning Lamps: 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.

HAZARD LAMP 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. 19, located in the fuse block (J/B)]
- to combination meter terminal 24
- to unified meter and A/C amp. terminal 21.

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 hazard switch is depressed, ground is supplied
- to BCM terminal 29
- to hazard switch terminal 2
- to hazard switch terminal 1
- through grounds M57, M61 and M79.

When the hazard switch is depressed, 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 l 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 within combination meter.