RAM 2500 Truck 4WD V10-8.0L VIN W (1997)
Hazard Warning Flasher: Description and Operation
SYSTEM OPERATION
The hazard warning flasher contains two normally open contact points mounted to two movable arms. A bimetal strip is attached between the two
arms. When the hazard warning switch is activated, current flows through the flasher. As the current flows through the bimetal strip it heats and
pulls the movable arms together until the contact points close, allowing current flow to the lamps. As the bimetal strip cools, the contact points are
pushed open and the cycle repeats.
CIRCUIT OPERATION
Circuit A15 from the battery positive post supplies power to the hazard flasher fuse (fuse C) in the Power Distribution Center (PDC).
Circuit L9 from the hazard flasher fuse supplies battery voltage to the hazard warning flasher Circuit L19 from the flasher connects to the
multi-function switch.
When the operator presses the hazard flasher button, the multi-function switch connects circuit L19 to circuits L60, L61, L62, and L63.
Circuit L62 powers the right rear turn signal/stop lamp. Circuit L63 powers the left rear turn signal/ stop lamp. Circuit L60 powers the right front
lamps and circuit L61 powers the left front lamps.
Circuit L60 and L61 are double crimped at the multi-function switch and supply power for the turn signal indicator lamps in the instrument cluster.
Ground Circuit
Circuit Z1 provides a ground for the parking lamps, turn/tail/stop lamps, and rear license plate lamps.
Circuit Z1 also provides a ground for the back-up lamps and Center High Mounted Stop Lamps (CHMSL) lamps.
