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Trouble Diagnoses
NAEL0285
Symptom Possible cause Repair order
Turn signal and hazard warning
lamps do not operate.
1. Hazard switch
2. Combination flasher unit
3. Open in combination flasher
unit circuit
1. Check hazard switch.
2. Refer to combination flasher unit check.
3. Check wiring to combination flasher unit for open
circuit.
Turn signal lamps do not operate
but hazard warning lamps operate.
1. 7.5A fuse
2. Hazard switch
3. Combination switch (turn signal)
4. Open in combination switch
(turn signal) circuit
1. Check 7.5A fuse [No. 12, located in fuse block
(J/B)]. Turn ignition switch ON and verify battery
positive voltage is present at terminal 2 of hazard
switch.
2. Check hazard switch.
3. Check combination switch (turn signal).
4. Check the wire between combination flasher unit
terminal 3 and combination switch (turn signal) ter-
minal 1 for open circuit.
Hazard warning lamps do not oper-
ate but turn signal lamps operate.
1. 15A fuse
2. Hazard switch
3. Open in hazard switch circuit
1. Check 15A fuse [No. 20, located in fuse block (J/B)].
Verify battery positive voltage is present at terminal
3 of hazard switch.
2. Check hazard switch.
3. Check the wire between combination flasher unit
terminal 3 and hazard switch terminal 4 for open cir-
cuit.
Front turn signal lamp LH or RH
does not operate.
1. Bulb
2. Grounds E13 and E41
3. Open in front turn signal lamp
circuit
1. Check bulb.
2. Check grounds E13 and E41.
3. Check harness between front turn signal lamp and
combination switch.
Rear combination lamp LH does
not operate.
1. Bulb
2. Grounds B11, B22 and D210
3. Open in rear combination lamp
LH circuit
1. Check bulb.
2. Check grounds B11, B22 and D210.
3. Check harness between rear combination lamp LH
and hazard switch.
Rear combination lamp RH does
not operate.
1. Bulb
2. Grounds B55 and B75
3. Open in rear combination lamp
RH circuit
1. Check bulb.
2. Check grounds B55 and B75.
3. Check harness between rear combination lamp RH
and hazard switch.
LH and RH turn indicators do not
operate.
1. Ground 1. Check grounds M4, M66 and M147.
LH or RH turn indicator does not
operate.
1. Bulb
2. Open in turn indicator circuit
1. Check bulb in combination meter.
2. Check harness between combination meter and haz-
ard switch.
SEL122E
Electrical Components Inspection
NAEL0286
COMBINATION FLASHER UNIT CHECK
NAEL0286S01
I Before checking, ensure that bulbs meet specifications.
I Connect a battery and test lamp to the combination flasher
unit, as shown. Combination flasher unit is properly function-
ing if it blinks when power is supplied to the circuit.
TURN SIGNAL AND HAZARD WARNING LAMPS
Trouble Diagnoses
EL-82
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