fuse NISSAN TERRANO 2002 Service Owner's Guide

Diagnostic Procedure
INSPECTION START
CHECK POWER SUPPLY.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect mass air flow sensor har-
ness connector.
3. Turn ignition switch to ªONº position.
4. Check voltage between mass air flow
sensor connector terminalq
2and
engine ground with CONSULT-II or
tester.
Voltage: Battery positive voltage
OK
ENG
Check the following:
I20A fuse
IECM Relay
IHarness continuity
between ECM relay (coil
and load side) connector
and battery supply
IHarness connectors
F100,M755(RHD mod-
els)
IHarness connectors
M787,F66(LHD mod-
els)
IHarness continuity
between ECM relay con-
nector and Mass Air
Flow Sensor Connector.
If NG, replace 20A fuse or
ECM relay, or repair har-
ness or connectors.
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector.
3. Loosen and retighten engine ground
screws.
4. Check harness continuity between
mass air flow sensor harness connec-
tor terminalq
3and ECM connector ter-
minal218. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following.
IHarness connectors
F100,M755(RHD mod-
els)
IHarness continuity
between mass air flow
sensor and ECM
If NG, repair or replace
harness or connectors.
CHECK INPUT SIGNAL CIRCUIT.
Check harness continuity between mass
air flow sensor connector terminalq
4and
ECM connector terminal223. Refer to
wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following.
IHarness connectors
F100,M755(RHD mod-
els)
IHarness continuity
between mass air flow
sensor and ECM
If NG, repair or replace
harness or connectors.
CHECK INPUT SIGNAL CIRCUIT.
Check harness continuity between mass
air flow sensor connector terminalq
5and
ECM connector terminal224. Refer to
wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following.
IHarness connectors
F100,M755(RHD mod-
els)
IHarness continuity
between mass air flow
sensor and ECM
If NG, repair or replace
harness or connectors.
CHECK COMPONENT
(Mass air flow sensor).
Refer to ªCOMPONENT INSPECTIONº,
EC-360.
OK
ENG
Replace mass air flow sen-
sor.
qA
NEF664
NEF591
NEF352
H
H
H
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DTC P0100 MASS AIR FLOW SENTD27Ti
EC-359

qA
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect accelerator work unit har-
ness connector and ECM harness con-
nector.
3. Check harness continuity between
accelerator work unit terminalq
3and
ECM terminal
435. Refer to wiring
diagram.
Continuity should exist.
Check harness for short-circuit.
OK
ENG
Check the following:
I10A fuse in fuse box
I75A fusible link in fusible
link box
IHarness continuity
between ECM relay and
battery positive supply
IHarness for open or
short-circuit between
ECM relay and accelera-
tor position switch.
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector.
3. Check harness continuity between
accelerator work unit connector termi-
nalq
1and ECM connector terminal
426. Refer to wiring diagram.
Continuity should exist.
If OK; check harness for short-circuit.
If OK, re-connect harness connectors.
OK
ENG
Repair harness or connec-
tors.
CHECK COMPONENT.
(Accelerator position switch.)
Refer to ªCOMPONENT INSPECTIONº on
page EC-371.
OK
ENG
Replace accelerator pedal.
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
SEF628S
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H
DTC P0120 ACCEL POS SENSORTD27Ti
Diagnostic Procedure (Cont'd)
EC-370

Diagnostic Procedure
INSPECTION START
CHECK FOR AIR IN FUEL FILTER.
1. Move priming pump up and down to
purge air from fuel filter.
2. Perform ªDIAGNOSTIC TROUBLE
CODE CONFIRMATION PROCE-
DUREº.
CHECK POWER SUPPLY.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect TVC and shut-off (injection
timing control valve) harness connec-
tor.
3. Turn ignition switch to ªONº position.
4. Check voltage between TVC and shut-
off (injection timing control valve) con-
nector terminalq
9and engine ground
with CONSULT-II or tester.
Voltage: Battery voltage
OK
ENG
Check the following:
IHarness connector
M787,F66
I20A fuse
IECM relay
IHarness for open or
short-circuit between
TVC and shut-off (injec-
tion timing control valve)
harness connector and
fuse box.
If NG, replace 20A fuse or
ECM relay, harness or con-
nectors.
CHECK OUTPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector.
3. Check harness continuity between TVC
and shut-off (injection timing control
valve) connector terminalq
8and ECM
terminals
202. Refer to wiring dia-
gram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness for open or
short-circuit between
TVC and shut-off (injec-
tion timing control valve)
and ECM
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT.
1. Disconnect ECM harness connector.
2. Check harness continuity between
ECM connector terminal
349and TVC
and shut-off (injection timing control
valve) connector terminalq
10. Refer to
wiring diagram.
Continuity should exist.
If OK, check harness of short-circuit.
OK
ENG
Repair harness or connec-
tors
qA
YEC256A
NEF463
MEC947D
H
H
H
H
H
DTC P0216 INJ TIMING CONT/V, DTC P1246 F/INJ TIMG F/BTD27Ti
EC-383

Diagnostic Procedure
INSPECTION START
Check fuel level, fuel supply system,
starter motor, etc.
OK
ENG
Correct.
Check that all glow plug connecting plate
nuts are installed correctly.
OK
ENG
Install correctly.
CHECK OVERALL FUNCTION.
Check entire glow control system.
NG
EOK
CHECK COMPONENT
(Glow plug).
Refer to EC-396.
CHECK VOLTAGE BETWEEN GLOW
RELAY AND GROUND.
1. Disconnect glow relay.
2. Check voltage between glow relay con-
nector terminalq
5and engine ground
with tester.
Voltage: Battery voltage
OK
ENG
Check the following:
I80A fusible link in fusible
link box
IHarness 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 terminalsq
2and engine ground
with tester.
Voltage: Battery voltage
OK
ENG
Check the following:
I20A fusible link in fusible
link box
IECM relay
IHarness 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 terminalq
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)
IHarness 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 terminalq
3and glow
plug connector terminalq
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
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H
DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMPTD27Ti
EC-393

qA
CHECK VOLTAGE BETWEEN COMBI-
NATION METER (GLOW INDICATOR)
AND GROUND.
1. Turn ignition switch ªOFFº.
2. Disconnect combination meter harness
connector.
3. Check voltage between combination
meter terminalq
28and ground.
Voltage: Battery voltage
OK
ENG
Check the following.
I10A fuse
IHarness continuity
between combination
meter and 10A fuse
If NG, replace fuse or
repair harness or connec-
tors.
CHECK COMPONENTS.
(Glow relay, Glow plug, Glow indicator).
Refer to ªCOMPONENT INSPECTIONº,
EC-396.
OK
ENG
Replace malfunctioning
component(s).
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
YEC257A
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DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMPTD27Ti
Diagnostic Procedure (Cont'd)
EC-394

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 terminalq
1and engine ground.
Voltage: Battery voltage
OK
ENG
Check the following:
I15A fuse
IHarness 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 terminalq2. 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 terminalq
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 terminalq
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-403.
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
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H
H
DTC P0571 BRAKE SWTD27Ti
EC-402

Diagnostic Procedure
INSPECTION START
CHECK MI POWER SUPPLY.
1. Turn ignition switch ªOFFº.
2. Disconnect combination meter harness
connector.
3. Turn ignition switch ªONº.
4. Check voltage between combination
meter terminalq
28and ground with
CONSULT-II or tester.
Voltage: Battery voltage
OK
ENG
Check the following.
IFuse block (J/B) con-
nector
F48(LHD mod-
els)M756(RHD models)
I10A fuse
IHarness for open or
short between fuse
block (J/B) and combi-
nation meter
If NG, repair harness or
connectors.
CHECK MI OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT.
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM
terminals
215and combination meter
terminalq14. Refer to Wiring Diagram.
4. Also check harness for short to ground
and short to power.
Continuity should exist.
OK
ENG
Repair harness or connec-
tors.
CHECK COMBINATION METER.
1. Turn ignition switch ªOFFº.
2. Disconnect combination meter harness
connector.
3. Check continuity under the following
conditions.
OK
ENG
Replace combination
meter. Refer to EL section.
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
CONDITIONTerminal No.
(Polarity)Continuity
1q
28(+) -q14(þ)Should not
exist.
2q
28(þ) -q14(+)Should
exist.
YEC239A
YEC240A
YEC241A
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DTC P0650 MITD27Ti
EC-406

Diagnostic Procedure
INSPECTION START
CHECK OVERALL FUNCTION.
With CONSULT-II
1. Turn ignition switch ªONº.
2. Perform ªCOOLING FANº in ªACTIVE
TESTº mode with CONSULT-II.
3. Make sure that cooling fan operate.
Without CONSULT-II
1. Start engine and let it idle.
2. Set temperature lever at full cold posi-
tion.
3. Turn air conditioner switch ªONº.
4. Turn blower fan switch ªONº.
5. Make sure that cooling fan operate.
NG
EOK
Go to ªqCº, EC-424.
CHECK COOLING FAN RELAY POWER
SUPPLY CIRCUIT.
1. Turn ignition switch ªOFFº.
2. Disconnect cooling fan relay.
3. Check voltage between cooling fan
relay terminalq
3and ground with
CONSULT-II or tester.
Voltage: Battery voltage
OK
ENG
Check the following.
I30A fuse
IHarness for open or
short between cooling
fan relay and battery
If NG, repair or replace
harness or fuse.
CHECK COOLING FAN MOTOR AND
CONDENSER CIRCUIT.
1. Disconnect cooling fan relay harness
connector, cooling fan motor harness
connector and condenser harness con-
nector.
2. Check continuity as follows. Refer to
wiring diagram.
OK
ENG
Check the following.
IHarness connectors
M785,F67
IHarness for open or
short between cooling
fan relay and cooling fan
motor
IHarness for open or
short between cooling
fan relay and condenser
If NG, repair harness or
connectors.
qA
Cooling fan relay terminalq5and cooling fan motor terminal
q1Continuity
should
exist.
Cooling fan relay terminalq
5and condenser terminalq1
SEF646X
SEC163BA
MEC940D
H
H
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DTC P1217 OVER HEATTD27Ti
EC-421

qA
CHECK COOLING FAN MOTOR AND
CONDENSER GROUND CIRCUIT.
1. Check continuity between cooling fan
motor terminalq
2and ground. Refer to
wiring diagram.
Continuity should exist.
2. Check continuity between condenser
terminalq
2and ground. Refer to wiring
diagram.
Continuity should exist.
If OK, reconnect harness connectors.
OK
ENG
Repair harness or connec-
tors.
CHECK COMPONENT
(Cooling fan relay).
Refer to ªCOMPONENT INSPECTIONº on
page EC-426.
OK
CHECK A/C RELAY POWER SUPPLY
CIRCUIT.
1. Disconnect A/C relay.
2. Check voltage between A/C relay ter-
minalq
2,q3and ground.
Voltage: Battery voltage
OK
ENG
Check the following.
IHarness connectors
F120,M812
I10A fuse
IHarness for open or
short between A/C relay
and fuse
If NG, repair or replace
harness or fuse.
CHECK A/C RELAY AND COOLING FAN
RELAY CIRCUIT.
1. Disconnect A/C relay and cooling fan
relay.
2. Check continuity between A/C relay
terminalq
5and cooling fan relay termi-
nalq
1. Refer to wiring diagram.
Continuity should exist.
OK
ENG
Repair harness or connec-
tors.
CHECK ECM INPUT SIGNAL CIRCUIT.
1. Disconnect ECM harness connector.
2. Check continuity as follows. Refer to
wiring diagram.
OK
ENG
Check the following.
IHarness connectors
M812,F120
IHarness connectors
M787,F66
IHarness for open or
short between A/C relay
and ECM
IHarness for open or
short between cooling
fan relay and ECM
If NG, repair harness or
connectors.
qB
ECM terminal204and A/C
relay terminalq1Continuity
should
exist. ECM terminal
219and cool-
ing fan relay terminalq2
PBIB0185E
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DTC P1217 OVER HEATTD27Ti
Diagnostic Procedure (Cont'd)
EC-422

qA
CHECK CONTROL FUNCTION.
With CONSULT-II
1. Turn ignition switch to ªONº position.
2. Turn EGRC-solenoid valve A, B and
throttle control solenoid valve to ªONº
and to ªOFFº in ªACTIVE TESTº mode
with CONSULT and check operating
sound.
Without CONSULT-II
1. Check voltage between ECM connector
terminals
208,210and engine
ground with tester under the following
conditions.
Voltage:
At idle:
Approximately 0.4V
Engine speed is more than 3,000
rpm:
Battery voltage
2. Check voltage between ECM connector
terminalq
1and engine ground with
tester under the following conditions.
Voltage:
At idle:
Approximately 0.4V
Engine speed is more than 2,400
rpm:
Battery voltage
NG
EOK
CHECK VACUUM HOSE.
Check vacuum hose for
clogging, cracks or
improper connection.
CHECK POWER SUPPLY-I.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect EGRC-solenoid valve A and
B harness connector.
3. Turn ignition switch to ªONº position.
4. Check voltage between EGRC-solenoid
valve A and B terminalsq
2and engine
ground with CONSULT-II or tester.
Voltage: Battery voltage
OK
ENG
Check the following:
I20A fuse
ICondition and operation
of ignition switch
IHarness connectors
M787,F66(LHD mod-
els)
IHarness connectors
F100,M775(RHD mod-
els)
IECM relay
IHarness for open or
short-circuit between
EGRC-solenoid valve A,
B and fuse.
If NG, replace fuse or
repair ignition switch, har-
ness or connectors.
qB
MEC953D
SEF816F
YEC247A
H
H
H
DTC P1404 EGR SOL/V A, DTC P1405 EGR SOL/V B/P1407
THROTTLE SOLENOID VALVETD27Ti
Diagnostic Procedure (Cont'd)
EC-437