Isuzu 2000 Trooper Workshop Manual page 178

2A–10 POWER ASSISTED SYSTEM
Turn Signal Switch
This diagnosis covers mechanical problems only. Refer
to Turn Signal Switch in Electrical section for electrical
diagnosis.
Condition
Turn Signal Will Not Stay In Turn
Position
Turn Signal Will Not Cancel
Turn Signal Difficult To Operate
Turn Signal Will Not Indicate Lane
Change
Hazard Switch Cannot Be Turned Off
No Turn Signal Lights
Front or Rear Turn Signal Lights Not
Flashing
Possible cause
Foreign material or loose parts
preventing movement of yoke.
Broken or missing detent
canceling spring.
Loose switch mounting screws.
Switch or anchor bosses broken.
Broken, missing or out of position
detent, return or canceling spring.
Worn canceling cam.
Turn signal switch arm loose.
Broken or distorted yoke.
Loose or misplaced springs.
Foreign parts and/or material.
Loose turn signal switch mounting
screws.
Broken lane change pressure pad or
spring hanger.
Broken, missing or misplaced lane
change spring.
Base of wire damaged.
Foreign material between hazard
switch to turn signal switch body.
Electrical failure in chassis harness.
Inoperative turn signal flasher unit.
Loose chassis harness connector.
Burned-out or damaged turn signal
bulb.
High resistance connection
ground at bulb socket.
Loose chassis harness connector.
Correction
Repair or replace signal switch.
or Replace signal switch.
Tighten mounting screws.
Replace turn signal switch.
Replace turn signal switch.
Replace turn signal switch.
Tighten arm screw.
Replace turn signal switch.
Replace turn signal switch.
Repair turn signal switch.
Tighten mounting screws.
Replace turn signal switch.
Replace turn signal switch.
Replace turn signal switch.
Repair or replace hazard switch.
Refer to Electrical section.
Replace flasher unit.
Repair loose connector.
Replace bulb.
to Repair bulb socket.
Repair loose connector.