Nissan Terrano model r20 series 2004. Manual — part 397
Trouble Diagnoses
PRELIMINARY CHECK
*1: Combination Meter Self-Diagnosis
*2: POWER SUPPLY AND GROUND
CIRCUIT CHECK (EL-83)
*3: Symptom Chart 1 (EL-93)
*4: Symptom Chart 2 (EL-93
SEL361WB
METER AND GAUGES
EL-92
SYMPTOM CHART
Symptom Chart 1 (Malfunction is Indicated in Diagnosis Mode)
Symptom
Possible causes
Repair order
Odo/trip meter indicates
malfunction in Diagnosis
mode.
Unified meter control unit
Replace unified meter control unit.
Multiple meter/gauge indi-
cate malfunction in Diagno-
sis mode.
One of speedometer/
tachometer/fuel gauge/
water temp. gauge indicates
malfunction in Diagnosis
mode.
1. Meter/Gauge
2. Unified meter control unit
1. Check resistance of meter/gauge indicating malfunction.
If the resistance is NG, replace the meter/gauge.
2. If the resistance of meter/gauge is OK, replace unified-
meter control unit.
Symptom Chart 2 (No Malfunction is Indicated in Diagnosis Mode)
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 SENSOR (Refer to
EL-95.)
INSPECTION/ENGINE REVOLUTION SIGNAL (Refer
to EL-96.)
INSPECTION/FUEL LEVEL SENSOR UNIT (Refer to
EL-96.)
INSPECTION/THERMAL TRANSMITTER (Refer to
EL-97.)
2. Replace unified meter control unit.
Multiple meter/gauge are
malfunctioning. (except odo/
trip meter)
Before starting trouble diagnoses below, perform PRELIMINARY CHECK, EL-92.
METER AND GAUGES
Trouble Diagnoses (Cont’d)
EL-93
POWER SUPPLY AND GROUND CIRCUIT CHECK
Power Supply Circuit Check
Terminals
Ignition switch position
(+)
(
−
)
OFF
ACC
ON
27
Ground
Battery volt-
age
Battery volt-
age
Battery volt-
age
28
Ground
0V
0V
Battery volt-
age
If NG, check the following.
I
10A fuse [No. 12, located in fuse block (J/B)]
I
10A fuse [No. 16, located in fuse block (J/B)]
I
Harness for open or short between fuse and combination meter
Ground Circuit Check
Terminals
Continuity
29 - Ground
Yes
YEL885E
YEL886E
METER AND GAUGES
Trouble Diagnoses (Cont’d)
EL-94
INSPECTION/VEHICLE SPEED SENSOR
CHECK VEHICLE SPEED SENSOR
OUTPUT.
1. Remove vehicle speed sensor from
transmission.
2. Turn ignition switch to “ON” position.
3. Check voltage between combination
meter terminals
q
21
and ground while
quickly turning speed sensor pinion.
Tester pointer should remove.
NG
E
OK
Vehicle speed sensor is
OK.
CHECK POWER SOURCE.
I
Re-install vehicle speed sensor.
I
Disconnect vehicle speed sensor con-
nector.
Check voltage between vehicle speed
sensor connector terminal
q
1
and ground.
Battery voltage should exist.
OK
E
NG
Check harness for open or
short between vehicle
speed sensor and fuse.
CHECK GROUND CIRCUIT OF
VEHICLE SPEED SENSOR
I
Turn ignition switch to the “LOCK” posi-
tion.
Check continuity between vehicle speed
sensor harness connector terminal
q
3
and
body ground.
Continuity should exist.
OK
E
NG
Repair harness or connec-
tor
Check continuity between speedometer
harness connector terminal
q
21
and
vehicle speed sensor connector terminal
q
2
.
Continuity should exist.
OK
E
NG
Repair harness and con-
nector.
Replace vehicle speed sensor.
YEL870E
YEL871E
YEL872E
YEL873E
H
H
H
H
METER AND GAUGES
Trouble Diagnoses (Cont’d)
EL-95
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