COMBINATION FLASHER DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
SYSTEM DOES NOT FLASH
ON ONE SIDE, INDICATOR
LAMP FLASHES AT DOUBLE
NORMAL RATE
1. FAULTY EXTERNAL
LAMP.
2. POOR GROUND AT
LAMP.
3. OPEN CIRCUIT IN
WIRING TO EXTERNAL
LAMP.
1. REPLACE LAMP.
2. CHECK AND/OR REPLACE WIRING.
3. REPLACE WIRING HARNESS. CHECK
CONNECTIONS.
INDICATOR LAMP FLASHES
AT DOUBLE NORMAL RATE.
EXTERNAL LAMP-DIM AND
FLASHES RAPIDLY OR NO
FLASH
1. LOOSE OR CORRODED
EXTERNAL LAMP
CONNECTION.
2. POOR GROUND
CIRCUIT AT EXTERNAL
LAMP.
1. REPLACE SOCKET/HARNESS.
2. REPLACE WIRING HARNESS. CHECK
CONNECTORS.
HAZARD WARNING
MALFUNCTION/SYSTEM
DOES NOT FLASH
1. FAULTY FUSE.
2. FAULTY FLASHER UNIT.
3. OPEN CIRCUIT IN FEED
WIRE TO SWITCH.
4. FAULTY CONTACT IN
SWITCH.
5. OPEN OR GROUNDED
CIRCUIT IN WIRING TO
EXTERNAL LAMPS.
1. REPLACE FUSE.
2. REPLACE FLASHER UNIT.
3. REPLACE WIRING HARNESS. CHECK
CONNECTORS.
4. REPLACE MULTI-FUNCTION SWITCH.
5. REPLACE WIRING HARNESS.
INDICATOR LAMP FLASHES
AT DOUBLE NORMAL RATE.
EXTERNAL LAMP DOES
NOT LIGHT
1. OPEN CIRCUIT IN WIRE
TO EXTERNAL LAMP.
2. BURNED OUT LAMP.
1. REPLACE WIRING HARNESS.
2. REPLACE LAMP.
SYSTEM DOES NOT FLASH
ON EITHER SIDE
1. FAULTY FUSE.
2. FAULTY FLASHER UNIT.
3. LOOSE BULKHEAD
CONNECTOR.
4. LOOSE OR FAULTY
REAR WIRING HARNESS
OR TERMINALS.
5. OPEN CIRCUIT TO
FLASHER UNIT.
6. OPEN CIRCUIT IN FEED
WIRE TO TURN SIGNAL
SWITCH.
7. FAULTY SWITCH
CONNECTION IN SWITCH.
8. OPEN OR GROUNDED
CIRCUIT IN WIRING TO
EXTERNAL LAMPS.
9. BURNED OUT LAMPS.
1. REPLACE FUSE.
2. REPLACE FLASHER UNIT.
3. TIGHTEN CONNECTOR.
4. REPLACE WIRING HARNESS.
5. CHECK CONNECTORS, REPLACE WIRING
HARNESS.
6. CHECK CONNECTORS, REPLACE WIRING
HARNESS.
7. REPLACE SWITCH.
8. REPLACE WIRING HARNESS.
9. REPLACE LAMPS.
LH TURN SIGNAL AND HAZARD WARNING SYSTEMS 8J - 3
DIAGNOSIS AND TESTING (Continued)
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