2001 NISSAN PICK-UP Repair Manual

INSPECTION/FUEL LEVEL SENSOR UNIT
CHECK GROUND CIRCUIT FOR FUEL
LEVEL SENSOR UNIT.
Check harness continuity between fuel
level sensor unit connector
C3terminal
V1(B) and ground.
Continuity should exist.
OK
cNG
Repair harness or connec-
tor.
CHECK GAUGE UNITS.
Refer to EL section ªFUEL LEVEL SEN-
SOR UNITº in original Service Manual
Pub. No. SM7E-0D22G1.
OK
cNG
Repair or replace.
Refer to FE section of Ser-
vice Manual Pub. No.
SM7E-0D22G1.
CHECK HARNESS FOR OPEN OR
SHORT.
1. Disconnect combination connector and
fuel level sensor unit connector.
2. Check continuity between combination
meter terminal
V20(Y/G) and fuel level
sensor unit connector
C3terminal
V3(Y/G).
Continuity should exist.
3. Check continuity between combination
meter terminal
V20(Y/G) and ground.
Continuity should not exist.
OK
cNG
Repair harness or connec-
tor.
Fuel level sensor unit is OK.
SEL639Y
SEL409Y
.
.
.
METER AND GAUGES
Trouble Diagnoses/With Tachometer (Cont'd)
EL-3074

INSPECTION/THERMAL TRANSMITTER
CHECK THERMAL TRANSMITTER.
Refer to EL section ªTHERMAL TRANS-
MITTERº in original Service Manual Pub.
No. SM7E-0D22G1.
OK
cNG
Repair or replace.
CHECK HARNESS FOR OPEN OR
SHORT.
1. Disconnect combination connector and
thermal transmitter connector.
2. Check continuity between combination
meter terminal
V19(Y/R) and thermal
transmitter connectorE9,M209,E209terminalV1.
Continuity should exist.
3. Check continuity between combination
meter terminal
V19(Y/R) and ground.
Continuity should not exist.
OK
cNG
Repair harness or connec-
tor.
Thermal transmitter is OK.SEL410Y
.
.
METER AND GAUGES
Trouble Diagnoses/With Tachometer (Cont'd)
EL-3075

Trouble Diagnoses/Without Tachometer
PRELIMINARY CHECK
*1:Meter/Gauge Operation and Odo/
Trip Meter Segment Check in Diagno-
sis Mode (EL-3070)*2:POWER SUPPLY AND GROUND
CIRCUIT CHECK (EL-3077)*3:Symptom Chart (EL-3076)
SYMPTOM CHART
Symptom Possible causes Repair order
One of speedometer/fuel gauge/water
temp. gauge is malfunctioning.1. Sensor signal
- Vehicle speed signal
- Fuel gauge
- Water temp. gauge
2. Unified meter control unit1. Check the sensor for malfunctioning
meter/gauge. INSPECTION/VEHICLE
SPEED SIGNAL (Refer to EL section
ªVehicle speed signalº in original Ser-
vice Manual.)
INSPECTION/FUEL LEVEL SENSOR
UNIT INSPECTION/THERMAL
TRANSMITTER
2. Replace unified meter control unit. Multiple meter/gauge are malfunction-
ing. (except odo/trip meter)
Before starting trouble diagnoses below, perform PRELIMINARY CHECK, EL-3076.
SEL269Y
METER AND GAUGES
EL-3076

POWER SUPPLY AND GROUND CIRCUIT CHECK
Power supply circuit check
Terminals Ignition switch position
Å@OFF ACC ON
V21(R/G) GroundBattery
voltageBattery
voltageBattery
voltage
V22(W/B) Ground 0V 0VBattery
voltage
If NG, check the following.
+10A fuse [No.
6, located in fuse block (J/B)]
+10A fuse [No.
11, located in fuse block (J/B)]
+Harness for open or short between fuse and combination
meter
Ground circuit check
Terminals Continuity
V23- Ground (B) Yes
SEL618Y
SEL619Y
METER AND GAUGES
Trouble Diagnoses/Without Tachometer
(Cont'd)
EL-3077

INSPECTION/VEHICLE SPEED SENSOR
Without ABS for the Middle East and Except for the
Middle East
CHECK VEHICLE SPEED SENSOR
OUTPUT.
1. Remove vehicle speed sensor from
transmission.
2. Check voltage between combination
meter connector
N10terminalsV24
(W) andV37(R) while quickly turning
speed sensor pinion.
Voltage: Approx. 0.5V
NG
cOK
Vehicle speed sensor is
OK.
CHECK VEHICLE SPEED SENSOR.
Check resistance between vehicle speed
sensor connector
E223terminalsV1(W)
and
V2(R).
Resistance: Approx. 250W
OK
cNG
Replace vehicle speed
sensor.
Check harness for open or short between
combination meter and vehicle speed
sensor.
SEL620Y
SEL447VA
.
.
METER AND GAUGES
Trouble Diagnoses/Without Tachometer
(Cont'd)
EL-3078

INSPECTION/FUEL LEVEL SENSOR UNIT
CHECK GROUND CIRCUIT FOR FUEL
LEVEL SENSOR UNIT.
Check harness continuity between fuel
level sensor unit connector
C3terminal
V1(B) and ground.
Continuity should exist.
OK
cNG
Repair harness or connec-
tor.
CHECK GAUGE UNITS.
Refer to EL section ªFUEL LEVEL SEN-
SOR UNITº in original Service Manual
Pub. No. SM7E-0D22G1.
OK
cNG
Repair or replace.
Refer to FE section of Ser-
vice Manual Pub. No.
SM7E-0D22G1.
CHECK HARNESS FOR OPEN OR
SHORT.
1. Disconnect combination connector and
fuel level sensor unit connector.
2. Check continuity between combination
meter terminal
V35(Y/G) and fuel level
sensor unit connector
C3terminal
V3(Y/G).
Continuity should exist.
3. Check continuity between combination
meter terminal
V35(Y/G) and ground.
Continuity should not exist.
OK
cNG
Repair harness or connec-
tor.
Fuel level sensor unit is OK.
SEL639Y
SEL621Y
.
.
.
METER AND GAUGES
Trouble Diagnoses/Without Tachometer
(Cont'd)
EL-3079

INSPECTION/THERMAL TRANSMITTER
CHECK THERMAL TRANSMITTER.
Refer to EL section ªTHERMAL TRANS-
MITTERº in original Service Manual Pub.
No. SM7E-0D22G1.
OK
cNG
Repair or replace.
CHECK HARNESS FOR OPEN OR
SHORT.
1. Disconnect combination connector and
thermal transmitter connector.
2. Check continuity between combination
meter terminal
V34(Y/R) and thermal
transmitter connectorE9,M209,E209terminalV1.
Continuity should exist.
3. Check continuity between combination
meter terminal
V34(Y/R) and ground.
Continuity should not exist.
OK
cNG
Repair harness or connec-
tor.
Thermal transmitter is OK.SEL622Y
.
.
METER AND GAUGES
Trouble Diagnoses/Without Tachometer
(Cont'd)
EL-3080

Schematic/With Tachometer
GEL399A
WARNING LAMPS
EL-3081