Nissan Terrano model r20 series 2004. Manual — part 398
INSPECTION/REVOLUTION SIGNAL
CHECK ECM OUTPUT SIGNAL.
1. Start engine.
2. Check voltage between combination
meter terminal 23 and ground at idle
and 2,000 rpm.
Higher rpm = Higher voltage
Lower rpm = Lower voltage
Voltage should change with rpm.
OK
E
NG
Check harness for open or
short between ECM and
meter.
Engine revolution signal is OK.
INSPECTION/FUEL LEVEL SENSOR UNIT
CHECK GROUND CIRCUIT FOR FUEL
LEVEL SENSOR UNIT.
1. Disconnect fuel level sensor unit har-
ness connector.
2. Check continuity between fuel level
sensor unit terminal 3 and ground.
Continuity should exist.
OK
E
NG
Repair harness or connec-
tor.
CHECK FUEL LEVEL SENSOR UNIT.
Refer to “FUEL LEVEL SENSOR UNIT
CHECK” (EL-98).
OK
E
NG
Replace fuel level sensor
unit.
CHECK HARNESS FOR OPEN OR
SHORT.
1. Disconnect fuel level sensor unit har-
ness connector and combination meter
harness connector.
2. Check continuity between combination
meter terminal 13 and fuel level sensor
unit terminal 2 (TD27Ti engine) or 1
(ZD30DDTi engine).
Continuity should exist.
3. Check continuity between combination
meter terminal 13 and ground.
Continuity should not exist.
E
NG
Repair harness or connec-
tor.
YEL881E
YEL882E
YEL883E
H
H
H
METER AND GAUGES
Trouble Diagnoses (Cont’d)
EL-96
INSPECTION/THERMAL TRANSMITTER
CHECK THERMAL TRANSMITTER.
Refer to “THERMAL TRANSMITTER
CHECK” (EL-98).
OK
E
NG
Replace thermal transmit-
ter.
CHECK HARNESS FOR OPEN OR
SHORT.
1. Disconnect combination meter connec-
tor and thermal transmitter connector.
2. Check continuity between combination
meter terminal 19 and thermal transmit-
ter terminal 1.
Continuity should exist.
3. Check continuity between combination
meter terminal 19 and ground.
Continuity should not exist.
OK
E
NG
Repair harness or connec-
tor.
Thermal transmitter is OK.
Components Inspection
AMBIENT TEMPERATURE SENSOR
<Reference data>
Intake air temperature
°C (°F)
Resistance
k
Ω
−20 (−4)
10.5 - 10.8
0 (32)
6.1 - 6.24
20 (68)
3.0 - 3.1
50 (122)
0.85 - 1.04
YEL884E
SEF012P
H
H
METER AND GAUGES
Trouble Diagnoses (Cont’d)
EL-97
Fuel Level Sensor Unit Check
I
For removal, refer to FE section.
Check the resistance between terminals (G) and (E).
Ohmmeter
Float position mm (in)
Resis-
tance
value
(
Ω
)
(+)
(−)
TD27Ti
ZD30DDTi
Hardtop
models
Wagon
models
Hardtop
models
Wagon
models
G
E
*3
Full
36 (1.42) 25 (0.98) 37 (1.46) 27 (1.06)
Approx.
7
2
1/2
159
(6.26)
120
(4.72)
160
(6.30)
120
(4.72)
96 - 108
*1
Emp-
ty
286
(11.26)
218
(8.58)
282
(11.10)
220
(8.66)
280 -
290
Values *1 and *3: with the dipstick float at its lower or upper limit.
Thermal Transmitter Check
Check the resistance between the terminals of thermal transmitter
and body ground.
Water temperature
Resistance
65°C (149°F)
Approx. 951 - 1,109
Ω
91°C (196°F)
Approx. 431 - 510
Ω
VEHICLE SPEED SENSOR SIGNAL CHECK
1. Remove vehicle speed sensor from transmission.
2. Turn vehicle speed sensor pinion quickly and measure voltage
between terminals 2 and 3.
YEL297D
SEL233P
YEL880E
METER AND GAUGES
EL-98
Schematic
YEL762E
WARNING LAMPS AND CHIME
EL-99
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