2002 NISSAN TERRANO check engine

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

qB
CHECK POWER SUPPLY-II.
1. Turn ignition switch ªOFFº.
2. Disconnect throttle control solenoid
valve harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between throttle solenoid
valve connector terminalq
2and engine
ground with CONSULT-II or tester.
Voltage: Battery voltage
OK
ENG
Check the following.
I20A fuse
IECM relay
IHarness connectors
M787,F66(LHD mod-
els)
IHarness connectors
F100,M77(RHD mod-
els)
IHarness for open or
short circuit between
throttle control solenoid
valve and ECM relay.
If NG, repair or replace
harness or connectors.
CHECK OUTPUT SIGNAL CIRCUIT-I.
1. Disconnect ECM harness connector.
2. Check harness continuity between
ECM connector terminal
208and
EGR Control Solenoid Valve A connec-
tor terminalq
1; ECM connector terminal
210and EGR Control Solenoid Valve
B connector terminalq
1. Refer to wiring
diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness connectors
F100,M775(RHD mod-
els)
IHarness for open or
short-circuit between
EGRC-solenoid valve A,
B and ECM
If NG, repair harness or
connectors.
CHECK OUTPUT SIGNAL CIRCUIT-II.
1. Disconnect ECM harness connector.
2. Check harness continuity between
ECM connector terminal
213and
throttle control solenoid valve terminal
q
1. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short circuit.
OK
ENG
Check the following:
IHarness connectors
F137,M853(RHD mod-
els)
IHarness for open or
short circuit between
throttle control solenoid
valve and ECM
If NG, repair harness or
connectors.
CHECK COMPONENTS
(EGRC-solenoid valve A and B).
(Throttle control valve)
Refer to EC-439.
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 or
the connection of ECM harness connector.
Reconnect ECM harness connector and
retest.
INSPECTION END
MEC954D
H
H
H
H
H
H
H
DTC P1404 EGR SOL/V A, DTC P1405 EGR SOL/V B/P1407
THROTTLE SOLENOID VALVETD27Ti
Diagnostic Procedure (Cont'd)
EC-438

Component Description
AIR CONDITIONER CUT CONTROL
Air conditioner is cut under the following conditions:
IStarting engine
IQuick acceleration from low speed
IUndershooting of idle speed
IHigh engine coolant temperature [above 107ÉC (225ÉF)]
IMalfunctioning of engine speed sensor, accelerator position sen-
sor or vehicle speed sensor when engine speed is below 2,100
rpm.
On Board Diagnosis Logic
DTC Malfunction is detected when ....Check Items
(Possible cause)
P1530
0805IAir conditioner relay signal circuit is shorted.IHarness or connectors
(The air conditioner relay signal circuit is shorted.)
IAir conditioner relay
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch and air conditioner switch to ªONº position.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Wait at least 2 seconds.
WITHOUT CONSULT-II
1) Turn ignition switch and air conditioner switch to ªONº position.
Wait at least 2 seconds.
2) Turn ignition switch to ªLOCKº position, wait at least 5 seconds
and then turn to ªONº position.
3) Perform ªDiagnostic Test Mode IIº (Self-diagnostic results).
DTC P1530 AIR CONDITIONER RLYTD27Ti
EC-440

Diagnostic Procedure
INSPECTION START
(Air conditioner relay signal circuit)
CHECK POWER SUPPLY.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect air conditioner relay har-
ness connector.
3. Check voltage between air conditioner
relay connector terminalq
2,q3and
engine ground.
Voltage: Battery voltage
OK
ENG
Check the following:
I10A fuse
IHarness for open or
short between fuse block
and A/C relay
If NG, replace or repair the
parts attached.
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector.
3.Check harness continuity between ECM
harness connector terminal
204and air
conditioner relay harness connector ter-
minalq
1. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-
circuit.
OK
ENG
Check the following:
IHarness connectors
M812,F120(LHD mod-
els)
IHarness for open or
short-circuit between
ECM and air conditioner
relay.
If NG, repair harness or
connectors.
CHECK AIR CONDITIONER RELAY.
Refer to HA section for inspection.
OK
ENG
Replace air conditioner
relay.
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 harness
connector. Reconnect ECM harness con-
nector and retest.
INSPECTION END
NEF512
PBIB0185E
H
H
H
H
H
H
DTC P1530 AIR CONDITIONER RLYTD27Ti
EC-443

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
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1603
0901IECM calculation function is malfunctioning.IECM
P1607
0301
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 PD1603 ECM 12, DTC P1607 ECM2TD27Ti
EC-444

Diagnostic Procedure
INSPECTION START
CHECK OVERALL FUNCTION.
1. Turn ignition switch to ªONº posi-
tion.
2. Check ªSTART SIGNALº in ªDATA
MONITORº mode with CONSULT-
II.
--------------------------------------------------------------------------------------------------------------------------------------OR--------------------------------------------------------------------------------------------------------------------------------------
1. Turn ignition switch to ªSTARTº
position.
2. Check voltage between ECM con-
nector terminal
422and engine
ground.
Voltage:
Ignition switch ªSTARTº:
Battery voltage
Except above:
Approximately 0V
NG
EOK
INSPECTION END
Check if 40A fusible link is OK.
OKENG
Replace 40A fusible link.
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector,
ignition switch connector.
3. Check harness continuity between ECM
connector terminal
422and ignition
switch connector terminalq
5. 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)
ICondition and operations
of ignition switch
IHarness for open or
short-circuit between
ECM and ignition switch
If NG, repair ignition
switch, harness or con-
nectors.
Disconnect and reconnect harness connec-
tors in the circuit. Then retest.
Trouble is not fixed.
Check ECM pin terminals for damage and
check the connection of ECM harness con-
nector. Reconnect ECM harness connector
and retest.
INSPECTION END
IGN ªONº OFF
IGN ªSTARTº ON
PBIB0763E
MEC966D
H
H
H
H
H
H
START SIGNALTD27Ti
EC-450

Front Fog Lamp Aiming Adjustment
When performing fog lamp aiming adjustment, use an aiming
machine, aiming wall screen or headlamp tester. The aimer should
be in good operational condition, calibrated and used according to
the relevant operation manuals supplied with the unit.
If an aimer is not available, aiming adjustment can be done as fol-
lows:
For details, refer to the regulations in your own country.
CAUTION:
IKeep all tires inflated to correct pressures.
IPlace vehicle and tester on one and the same flat surface.
IEnsure that there is no-load in the vehicle other than
coolant, engine oil (filled up to correct level), full fuel tank
and the driver (or equivalent weight placed in driver's posi-
tion).
For details of front fog lamp aiming adjustment, refer to ªAiming
Adjustmentº, EL-43.
Check the distance between the vehicle and the ground illumina-
tion point of the main axis of the fog lamp beam. Keep the distance
to approximately 40 m (131 ft).
NEL331
EXTERIOR LAMP
EL-53

Fuel Tank Gauge Unit Check
IFor removal, refer to FE section.
Check the resistance between terminals (G) and (E).
Ohmmeter Float position mm (in)
Resis-
tance
value
(W) (+) (þ)TD27Ti ZD30DDTi
Hardtop
modelsWagon
modelsHardtop
modelsWagon
models
GE*3 Full 36 (1.42) 25 (0.98) 37 (1.46) 27 (1.06)Approx.
7
2 1/2159
(6.26)120
(4.72)160
(6.30)120
(4.72)96 - 108
*1Emp-
ty286
(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
65ÉC (149ÉF) Approx. 951 - 1,109W
91ÉC (196ÉF) Approx. 431 - 510W
Oil Pressure Switch Check
Check the continuity between the terminals of oil pressure switch
and body ground.
Oil pressure
kPa (bar, kg/cm2, psi)Continuity
Engine startMore than 10 - 20 (0.10
- 0.20, 0.1 - 0.2, 1.4 -
2.8)NO
Engine stopLess than 10 - 20 (0.10 -
0.20, 0.1 - 0.2, 1.4 - 2.8)YES
YEL297D
SEL233P
SEL748K
METER AND GAUGES
EL-80