Nissan Primera P11. Instruction — part 99
YEC807
BATTERY
Refer to EL-POWER.
: Detectable line for DTC
: Non-detectable line for DTC
INJECTION PUMP
(FUEL CUT SOLE-
NOID VALVE)
ENGINE
CONTROL
MODULE
RELAY
ECM
TROUBLE DIAGNOSIS 10
CD20T
Fuel Cut Solenoid Valve (Cont’d)
EC-101
DIAGNOSTIC PROCEDURE
INSPECTION START
CHECK MAIN POWER SUPPLY.
Check power supply. Refer to
EC-CD-59.
CHECK OUTPUT SIGNAL CIRCUIT.
1. Turn ignition switch to “ON”
position.
2. Select “FUEL CUT SOL/V” in
“ACTIVE TEST” mode with
CONSULT-II.
3. Touch “ON” and “OFF” alter-
nately.
4. Check that operating sound is
emitted.
--------------------------------------------------------------------------------------------------------------------------------- OR ---------------------------------------------------------------------------------------------------------------------------------
1. Turn ignition switch to “LOCK”
position.
2. Disconnect ECM harness con-
nector and electronic injection
pump harness connector.
3. Check harness continuity
between fuel cut solenoid valve
connector terminal
p
1
and
ECM connector terminal
349
.
Continuity should exist.
If OK, check harness for short.
OK
E
NG
Repair harness or con-
nectors.
CHECK COMPONENT
(Fuel cut solenoid valve).
Refer to “COMPONENT INSPECTION”
on next page.
OK
E
NG
Replace fuel cut solenoid
valve.
Disconnect and reconnect harness
connectors in the circuit. Then retest.
Trouble is not fixed.
Check ECM pin terminals for damage
and check the connection of ECM har-
ness connector. Reconnect ECM har-
ness connector and retest.
INSPECTION END
NEF815
.
Electronic injection
pump harness connector
(Fuel cut solenoid valve)
C2FCS01
NEF226A
Electronic injection
pump harness con-
nection
H
H
H
H
H
H
TROUBLE DIAGNOSIS 10
CD20T
Fuel Cut Solenoid Valve (Cont’d)
EC-102
COMPONENT INSPECTION
Fuel cut solenoid valve
1. Remove fuel cut solenoid valve.
2. Check for lifting shaft when applying 12V direct current to
terminals.
If NG, replace fuel cut solenoid valve.
SEF859S
Shaft
FUSE
TROUBLE DIAGNOSIS 10
CD20T
Fuel Cut Solenoid Valve (Cont’d)
EC-103
Fuel Temperature Sensor (FTS)
The fuel temperature sensor is used to detect the fuel tempera-
ture in the injection pump. The sensor modifies a voltage signal
from the ECM. The modified signal returns to the ECM as the fuel
temperature input. The sensor uses a thermistor which is sensi-
tive to the change in temperature. The electrical resistance of the
thermistor decreases as temperature increases.
The sensor is built into the inside electrical circuit of the injection
pump.
Malfunction is detected when ...
Check Items
(Possible Cause)
●
An excessively high or low voltage from the sensor is
detected by ECM.
●
Harness or connectors
(The sensor circuit is open or shorted.)
●
Fuel temperature sensor
DIAGNOSTIC TROUBLE CONFIRMATION
PROCEDURE
1)
Turn ignition switch to “ON” position.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Wait at least 5 seconds.
TROUBLE DIAGNOSIS 11
CD20T
EC-104
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