engine NISSAN TERRANO 2004 Service Repair Manual

System Description
GLOW CONTROL
Engine coolant temperature sensorEEngine coolant temperatureECMEGlow relayEGlow plugs
Ignition switchEStart signalEGlow lamp
IPre-glow
When the ignition switch is turned on the ON position, the glow
indicator lamp will turn ON and pre-glow starts.
The glow relay is turned ON continuously. The ON time of both
the glow indicator lamp and the glow relay is determined by the
engine coolant temperature. Pre-glow ends when the pre-glow
time elapses or when the engine is started.
I Intermediate glow
Intermediate glow starts when the pre-glow time has elapsed
and the engine has not been started. The glow relay is turned
ON intermittently. Intermediate glow ends when the intermedi-
ate glow time has elapsed, or when the engine is started.
I After-glow
After-glow starts as soon as the engine is running and the
engine coolant temperature is below 50ÉC (122ÉF). The glow
relay is turned on continuously. After-glow ends when the after-
glow time elapses, or when the engine coolant temperature
exceeds 50ÉC (122ÉF).
MEC972D
DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMPTD27Ti
EC-412
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Diagnostic Procedure
INSPECTION START
Check fuel level, fuel supply system,
starter motor, etc.
OK
ENGRepair or replace.
Check that all glow plug connecting plate
nuts are installed correctly.
OK
ENGInstall correctly.
CHECK OVERALL FUNCTION.
Check entire glow control system.
NG
EOKCHECK COMPONENT
(Glow plug).
Refer to EC-419.
CHECK VOLTAGE BETWEEN GLOW
RELAY AND GROUND.
1. Disconnect glow relay.
2. Check voltage between glow relay con- nector terminal q
5and engine ground
with tester.
Voltage: Battery voltage
OK
ENG Check the following:
I80A fusible link in fusible
link box
I Harness continuity
between glow relay and
battery positive terminal.
If NG, replace fuse or fus-
ible link or repair harness
or connectors.
CHECK VOLTAGE BETWEEN GLOW
RELAY AND GROUND.
1. Turn ignition switch to ªONº position.
2. Check voltage between glow relay con- nector terminals q
2and engine ground
with tester.
Voltage: Battery voltage
OK
ENG Check the following:
I20A fusible link in fusible
link box
I ECM relay
I Harness continuity
between glow relay and
battery positive terminal.
If NG, replace fuse or fus-
ible link or repair harness
or connectors.
CHECK OUTPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM connector terminal
214and
glow relay connector terminal q
1. Refer
to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG Check the following.
IHarness connectors
M787,F66(LHD mod-
els)
I Harness continuity
between glow relay and
ECM
If NG, repair harness or
connectors.
CHECK HARNESS CONTINUITY
BETWEEN GLOW RELAY AND GLOW
PLUG.
1. Disconnect glow plug connector.
2. Check harness continuity between glow relay connector terminal q
3and glow
plug connector terminal q
1. Refer to
wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG Check the following.
IHarness connectors
M740,E142
IHarness continuity
between glow relay and
glow plug
If NG, repair harness or
connectors.
qA
NEF504
MEC950D
MEC951D
H
H
H
H
H
H
H
H
DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMPTD27Ti
EC-416
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System Operation Check
Set voltmeter between glow plug and engine body.
1. Pre-glow control
a. Turn ignition switch to ªONº position.
b. Read voltage and time.Battery voltage will continuously appear for about 20*
seconds after ignition switch is turned ªONº.
* Engine coolant temperature is higher than 20ÉC(68ÉF).
* Repeatedly turning the ignition switch to ªONº posi- tion and then back to ªLOCKº position may change
the glow time.
2. Intermediate-glow control
a. Turn ignition switch to ªLOCKº position. Wait at least 5 seconds.
b. Turn ignition switch to ªONº.
c. Read voltage. Battery voltage will intermittently appear for about 60
seconds after pre-glow control time has elapsed.
3. After-glow control Start engine and read voltage and time.Battery voltage will appear for max. 10 minutes.
When engine coolant temperature is lower than 50ÉC
(122ÉF).
NEF506
NEF726
NEF727
NEF728
DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMPTD27Ti
EC-418
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Component Description
VEHICLE SPEED SENSOR (VSS)
The vehicle speed sensor is installed in the combination meter. It
contains a pulse generator which provides a vehicle speed signal
to the speedometer. The speedometer then sends a signal to the
ECM.
On Board Diagnosis Logic
DTCMalfunction is detected when .... Check Items
(Possible Cause)
P0500
0104 I
The almost 0 km/h (0 mph) signal from vehicle speed
sensor is sent to ECM even when vehicle is being
driven. I
Harness or connector
(The vehicle speed sensor circuit is open or short-
circuited.)
I Vehicle speed sensor
Overall Function Check
Use this procedure to check the overall function of the vehicle
speed sensor circuit. During this check, a DTC might not be con-
firmed.
WITH CONSULT-II
1) Jack up drive wheels.
2) Start engine.
3) Read vehicle speed sensor signal in ªDATA MONITORº mode
with CONSULT-II.
The vehicle speed on CONSULT-II should be able to exceed 10
km/h (6 mph) when rotating wheels with suitable gear position.
WITHOUT CONSULT-II
1) Jack up drive wheels.
2) Rotate drive wheel by hand.
3) Check voltage between ECM connector terminal
417and body
ground with tester.
Voltage should vary between approx. 0 - Battery voltage.
AEC110
SEF864Y
MEC970D
DTC P0500 VEHICLE SPEED SENTD27Ti
EC-420
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Component Description
BRAKE SWITCH
The ECM receives signals from two brake switches. One is a con-
ventional brake lamp switch, the other is referred to as a redundant
brake switch 2.
In case the accelerator pedal does not return to the idle position
(pedal sticks), the driver will react by depressing the brake. In this
(emergency) situation, the ECM will disregard the accelerator pedal
signal and bring back the engine speed to 1,200 rpm.
On Board Diagnosis Logic
DTCMalfunction is detected when ... Check Items
(Possible Cause)
P0571
0807 I
Brake switch circuits are open or shorted. IHarness or connectors
(Brake switch circuits are open or shorted.)
I Stop lamp switch
I Brake switch 2
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch to ªONº position and select ªDATA MONI-
TORº mode with CONSULT-II.
2) Depress brake pedal for at least 1 minute.
WITHOUT CONSULT-II
1) Turn ignition switch to ªONº position.
2) Depress brake pedal for at least 1 minute.
3) Turn ignition switch to ªLOCKº position, wait at least 5 seconds and then turn to ªONº position.
4) Perform ªDiagnostic Test Mode IIº (Self-diagnostic results).
DTC P0571 BRAKE SWTD27Ti
EC-423
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Diagnostic Procedure
INSPECTION START
(Stop lamp switch circuit)
CHECK POWER SUPPLY.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect stop lamp switch harness connector.
3. Check voltage between stop lamp switch harness connector terminal q
1and engine ground.
Voltage: Battery voltage
OK
ENG
Check the following:
I15A fuse
I Harness for open or
short-circuit between
fuse block and stop
lamp switch
If NG, repair harness or
connectors.
CHECK STOP LAMP SWITCH INPUT
SIGNAL CIRCUIT.
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM connector terminal
405and stop
lamp switch terminal q2. Refer to wiring
diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG Repair harness or connec-
tors.
CHECK BRAKE SWITCH INPUT SIGNAL
CIRCUIT.
1. Disconnect brake switch harness con-
nector.
2. Check harness continuity between brake switch terminal q
2and ECM ter-
minal416. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG Repair harness or connec-
tors.
CHECK GROUND CIRCUIT.
1. Check harness continuity between
brake switch terminal q
1and ground.
Refer to wiring diagram.
Continuity should exist.
If OK, reconnect harness connectors.
OK
ENG Repair harness or connec-
tors.
CHECK COMPONENT.
(Stop lamp switch and brake switch)
Refer to ªCOMPONENT INSPECTIONº,
EC-426.
OK
Disconnect and reconnect harness con-
nectors in the circuit. 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
MEC952D
H
H
H
H
H
H
H
H
DTC P0571 BRAKE SWTD27Ti
EC-425
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Component Description
Malfunction Indicator (MI) is located on the instrument panel. When the ignition switch is turned ON without
engine running, MI will light up. This is a bulb check. When the engine is started, MI should go off. If MI remains
on, the on board diagnostic system has detected an engine system malfunction.
On Board Diagnosis Logic
DTC No.Trouble diagnosis name DTC detecting condition Possible cause
P0650
0907 Malfunction indicator (MI) control cir-
cuit I
An excessively high voltage is sent
to ECM through the MI circuit
under the condition that calls for MI
light up.
I An excessively low voltage is sent
to ECM through the MI circuit
under the condition that calls for MI
not to light up. I
Harness or connectors
(MI circuit is open or shorted.)
I MI
DTC Confirmation Procedure
NOTE:
If ªDTC Confirmation Procedureº has been previously
conducted, always turn ignition switch ªOFFº and wait at least
10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªDATA MONITORº mode with CONSULT-II.
3. Start engine and let it idle for 2 second.
WITHOUT CONSULT-II
1. Turn ignition switch ªONº.
2. Perform ªDiagnostic Test Mode IIº (Self-diagnostic results).
3. Start engine and let it idle for 2 second.
4. Perform ªDiagnostic Test Mode IIº (Self-diagnostic results).
SEF817Y
DTC P0650 MITD27Ti
EC-427
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Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
DTCMalfunction is detected when ... Check Items (Possible Cause)
P1107
0802 I
An excessively high or low voltage from
the absolute pressure sensor (built-into
ECM) is sent to ECM. I
ECM
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and wait at least 2 seconds.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Start engine and wait at least 2 seconds.
3) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
4) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with ECM.
SEC220B
SEF817Y
DTC P1107 ECM 10TD27Ti
EC-430
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DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch to ªONº position and select ªDATA MONI-TORº mode with CONSULT-II.
2) Start engine above 1,200 rpm.
3) Run it for 2 seconds above 1,200 rpm. Return engine speed to idle.
WITHOUT CONSULT-II
1) Start engine above 1,200 rpm.
2) Run engine for 2 seconds above 1,200 rpm. Return enginespeed to idle.
3) Turn ignition switch to ªLOCKº position, wait at least 5 seconds and then turn to ªONº position.
4) Perform ªDiagnostic Test Mode IIº (Self-diagnostic results).
NOTE:
If malfunction occurs intermittently, conduct suitable driving
pattern for 10 minutes. This makes it possible to determine
DTC.
DTC P1206 F/INJ F/B 2TD27Ti
EC-433
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Component Description
CONTROL SLEEVE POSITION SENSOR (CSPS)
The control sleeve position sensor is installed on the electric gov-
ernor. It senses the position of control sleeve (rotor angle) while the
control sleeve is being driven by the electric governor, and feeds it
back to the ECM.
On Board Diagnosis Logic
DTCMalfunction is detected when .... Check Items
(Possible cause)
P1207
0105 I
An excessively high or low voltage from the sensor is
detected by ECM.
........................................................................\
...................
I An improper voltage signal from the sensor is detected
by ECM during engine running. I
Harness or connectors
(The control sleeve position sensor circuit is open or
short-circuited.)
I Control sleeve position sensor
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch to ªONº position and select ªDATA MONI-
TORº mode with CONSULT-II.
2) Start engine and run it for at least 2 seconds at idle speed.
WITHOUT CONSULT-II
1) Start engine and run it for at least 2 seconds at idle speed.
2) Turn ignition switch to ªLOCKº position, wait at least 5 seconds and then to ªONº position.
3) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º.
SEF641S
DTC P1207 CONT SLEEV POS SENTD27Ti
EC-437
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