Nissan Terrano r20e. Manual — part 184
Wiring Diagram
YEC149A
DTC P0180 FUEL TEMP SENSOR
TD27Ti
EC-373
Diagnostic Procedure
INSPECTION START
CHECK POWER SUPPLY.
1. Turn ignition switch to “LOCK” position.
2. Disconnect electrical fuel injection
pump harness connector.
3. Turn ignition switch to “ON” position.
4. Check voltage between electronic con-
trol fuel injection pump (Fuel tempera-
ture sensor) harness connector termi-
nal
q
6
and engine ground with CON-
SULT-II or tester.
Voltage:
Approximately 4.9V
OK
E
NG
Check the following:
I
Harness for open or
short-circuit between
ECM and electronic con-
trol fuel injection pump
(fuel temperature sen-
sor)
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT.
1. Turn ignition switch to “LOCK” position.
2. Check harness continuity between
electronic control fuel injection pump
(fuel temperature sensor) connector
terminal
q
5
and ECM connector
terminal
335
. Refer to wiring dia-
gram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open or
short-circuit between
ECM and electronic con-
trol fuel injection pump
(fuel temperature sen-
sor).
If NG, repair harness or
connectors.
CHECK COMPONENT
[Electronic control fuel injection pump
(Fuel temperature sensor)].
Refer to “COMPONENT INSPECTION” on
page EC-375.
OK
E
NG
Have the injection pump
assembly serviced by an
authorised service repre-
sentative.
Disconnect and reconnect harness con-
nectors in the circuits. Then retest.
Trouble is not fixed.
Check ECM pin terminals for damage and
check the connection of ECM harness
connector. Reconnect ECM harness con-
nector and retest.
INSPECTION END
YEC248A
YEC254A
H
H
H
H
H
H
DTC P0180 FUEL TEMP SENSOR
TD27Ti
EC-374
Component Inspection
ELECTRONIC CONTROL FUEL INJECTION PUMP (FUEL
TEMPERATURE SENSOR)
Wait until fuel temperature sensor reaches room temperature.
Check resistance between electronic control fuel injection pump
(fuel temperature sensor) terminals
q
5
and
q
6
.
Temperature °C (°F)
Resistance k
Ω
25 (77)
Approximately 1.9
If NG, have the injection pump assembly serviced by an authorised
service representative.
YEC255A
DTC P0180 FUEL TEMP SENSOR
TD27Ti
EC-375
Component Description
FUEL CUT SOLENOID VALVE
When the ignition switch is off, the ECM turns the fuel cut solenoid
valve OFF (under this condition, no current flows through the fuel
cut solenoid valve), shutting off fuel supply.
When the engine is not operating due to trouble, the fuel cut sole-
noid valve may or may not be OFF even when the ignition switch
is ON.
On Board Diagnosis Logic
DTC
Malfunction is detected when ...
Check Items
(Possible Cause)
P0125
0306
I
Fuel cut solenoid valve circuit is malfunctioning.
I
Harness or connectors
(The solenoid valve circuit is open or shorted.)
I
Fuel cut solenoid valve
DTC Confirmation Procedure
NOTE:
If DTC P0115 or P0335 is displayed same time, perform trouble
diagnosis for P0115 or P0335 first.
WITH CONSULT-II
1) Turn ignition switch to “ON” position.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Start engine. (If no start, circuit is open.)
4) Warm it up sufficiently.
5) Turn ignition switch to “LOCK” position, wait at least 5 seconds.
6) Start engine and rev it up to above 1,300 rpm. Release pedal
and wait at least 3 seconds.
WITHOUT CONSULT-II
1) Start engine. (If no start, circuit is open.)
2) Warm it up sufficiently.
3) Turn ignition switch to “LOCK” position, wait at least 5 seconds.
4) Start engine and rev it up to above 1,300 rpm. Release pedal
and wait at least 3 seconds.
5) Turn ignition switch to “LOCK” position, wait at least 5 seconds
and then turn to “ON” position.
6) Perform “Diagnostic Test Mode II” (Self-diagnostic results).
SEF667S
DTC P0215 FUEL CUT S/V 1
TD27Ti
EC-376
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