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Trouble Diagnoses
NAEL0302
PRELIMINARY CHECK
NAEL0302S01
SEL494Y
*1: Meter/Gauge Operation and Odo/
Trip Meter Segment Check in
Diagnosis Mode (EL-124)
*2: POWER SUPPLY AND GROUND
CIRCUIT CHECK (EL-126)
*3: Symptom Chart 1 (EL-125)
SYMPTOM CHART
NAEL0302S02
Symptom Possible causes Repair order
One of speedometer/
tachometer/fuel gauge/
water temp. gauge is mal-
functioning.
1. Sensor signal
- Vehicle speed signal
- Engine revolution signal
- Fuel gauge
- Water temp. gauge
2. Unified meter control unit
1. Check the sensor for malfunctioning meter/gauge.
INSPECTION/VEHICLE SPEED SIGNAL (Refer to
EL-127.)
INSPECTION/ENGINE REVOLUTION SIGNAL
(Refer to EL-128.)
INSPECTION/FUEL LEVEL SENSOR UNIT (Refer to
EL-129.)
INSPECTION/THERMAL TRANSMITTER (Refer to
EL-130.)
2. Replace unified meter control unit assembly.
Multiple meter/gauge are
malfunctioning. (except
odo/trip meter)
Unified meter control unit
Before starting trouble diagnoses below, perform PRELIMINARY
CHECK, EL-125.
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
METERS AND GAUGES
Trouble Diagnoses
EL-125
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