Chrysler RAM TRUCK 2500 1994 Service Manual page 466

• TURN SIGNALS AND HAZARD WARNING FLASHER 8J - 1
TURN SIGNALS AND HAZARD WARNING FLASHER
CONTENTS
page
GENERAL INFORMATION 1
MULTI-FUNCTION SWITCH SERVICE
PROCEDURES 3
MULTI-FUNCTION SWITCH TESTING
PROCEDURES
page
... 2
G E N E R A L I N F O R M A T I O N
WARNING: BEFORE SERVICING A STEERING COL­
UMN EQUIPPED WITH A N A I R B A G , REFER TO
GROUP 8M - RESTRAINT SYSTEMS FOR PROPER
AND SAFE SERVICE PROCEDURES.
TURN SIGNALS
DESCRIPTION
The turn signals are actuated with a lever on the
left side of the steering column just behind the steer­
ing wheel. The signals are turned off by a canceling
cam (two lobes molded to the clockspring mecha­
nism). The cam comes in contact with the cancel ac­
tuator on the turn signal (multi-function) switch
assembly. Either cam lobe, pushing on the cancel ac­
tuator, returns the switch to the off position.
With the ignition switch ON, and the multi-func­
tion lever i n its up or down position, current flows
through the.
• turn signal flasher canister
• multi-function switch
• turn indicator lamp
• front and rear turn signal bulbs.
The selected turn signal indicator with front and
rear turn signal bulbs will flash.
DIAGNOSIS—TURN SIGNAL INOPERATIVE
High generator output voltage can burn out
lamps rapidly.
(1) Turn ignition switch to ON position. Place turn
stalk in up or down position. Observe the turn indi­
cator arrow on instrument cluster. I f the arrow re­
mains lit, check for burned out exterior turn signal
bulb, replace as required. Turn indicator should now
flash, i f not go to next step.
(2) Remove and inspect fuse i n cavity #6 of fuse-
block module. Replace i f necessary. The fuseblock
module is located in the left end of the instrument
panel (Fig. 1).
(3) With ignition switch in ON position, return
turn stalk to neutral position. There should be bat-
BUZZER
MODULE
INSTRUMENT
... ...fANEL.......
Fig. 1 Fuse Block/Flasher Location
tery voltage at the fuse side of the turn signal flasher
(top terminal). I f not, repair open circuit in wiring
between fuse and flasher.
(4) Replace turn flasher with 2 lamp 12-volt rated
flasher, that is known to be good. With ignition
switch in ON position, and turn stalk moved up or
down, the lamps should flash. I f not, replace with
original flasher and go to next step.
(5) Locate the multi-function switch connector. Re­
fer to Multi-Function Switch Testing Procedures.
Measure voltage at the multi-function switch connec­
tor cavity 17. Meter should read battery voltage. I f
OK, replace multi-function switch. I f not, repair open
circuit in wiring between flasher and multi-function
switch connector cavity 17.
HAZARD WARNING SYSTEM
DESCRIPTION
The hazard warning flashers are actuated by a
push button located on the top of the steering column
between the steering wheel and the instrument
panel. The hazard switch is identified with a double