Start NISSAN TERRANO 2002 Service Repair Manual

Diagnostic Procedure
INSPECTION START
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector
and combination meter harness con-
nector.
3. Check harness continuity between
ECM connector terminal
417and
combination meter connector terminal
q
26. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness for open or
short-circuit between
ECM and combination
meter
If NG, repair harness or
connectors.
CHECK SPEEDOMETER FUNCTION.
Make sure that speedometer functions
properly.
OK
ENG
Check the following:
IHarness for open or
short-circuit between
combination meter and
vehicle speed sensor
If NG, repair harness or
connectors.
Check vehicle speed sen-
sor and its circuit.
Refer to EL section.
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
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DTC P0500 VEHICLE SPEED SENTD27Ti
EC-399

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
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DTC P0571 BRAKE SWTD27Ti
EC-402

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
0907Malfunction indicator (MI) control cir-
cuitIAn excessively high voltage is sent
to ECM through the MI circuit
under the condition that calls for MI
light up.
IAn excessively low voltage is sent
to ECM through the MI circuit
under the condition that calls for MI
not to light up.IHarness or connectors
(MI circuit is open or shorted.)
IMI
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-404

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

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)
P1107
0802IAn excessively high or low voltage from
the absolute pressure sensor (built-into
ECM) is sent to ECM.IECM
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-407

Diagnostic Procedure
INSPECTION START
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªSELF DIAG RESULTSº mode
with CONSULT-II.
3. Touch ªERASEº.
4. Perform ªDTC Confirmation Procedureº,
EC-407 again.
5. Is the DTC P1107 displayed again?
Without CONSULT-II
1. Turn ignition switch ªONº.
2. Erase the Diagnostic Test Mode II (Self-
diagnostic results) memory.
3. Perform ªDTC Confirmation Procedureº,
EC-407 again.
4. Perform ªDiagnostic Test Mode II (Self-
diagnostic results)º.
5. Is the DTC 0802 displayed again?
No
EYe s
Replace ECM.
INSPECTION END
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DTC P1107 ECM 10TD27Ti
EC-408

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 engine
speed 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-410

Diagnostic Procedure
INSPECTION START
CHECK MAIN POWER SUPPLY.
Refer to EC-352.
CHECK POWER SUPPLY CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector
and electronic injection pump harness
connector.
3. Check harness continuity between
injection pump connector terminalq
7
and ECM connector terminals107,
108,109. Refer to wiring diagram.
Continuity should exist.
4. Check harness continuity between
injection pump connector terminalq
7
and ECM relay terminalq5.
Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following.
IHarness connector
M787,
F66(LHD models)
IHarness for open or
short between electronic
control injection pump
and ECM relay
IHarness for open or
short between electronic
control injection pump
and ECM
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT.
Check harness continuity between injec-
tion pump connector terminalq
4and ECM
connector terminals
101,102,103.
Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Repair harness or connec-
tors.
CHECK COMPONENT
(Electric governor).
Refer to ªCOMPONENT INSPECTIONº on
next page.
OK
ENG
Have the injection pump
assembly serviced by an
authorised service repre-
sentative.
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
YEC248A
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DTC P1206 F/INJ F/B 2TD27Ti
EC-412

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
DTC Malfunction is detected when ....Check Items
(Possible cause)
P1207
0105IAn excessively high or low voltage from the sensor is
detected by ECM.
...........................................................................................
IAn improper voltage signal from the sensor is detected
by ECM during engine running.IHarness or connectors
(The control sleeve position sensor circuit is open or
short-circuited.)
IControl 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-414

Diagnostic Procedure
INSPECTION START
CHECK POWER SUPPLY CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Disconnect ECM harness connector
and electrical fuel injection pump
harness connector.
3. Check harness continuity between
electrical fuel injection pump terminalq
2
and ECM connector terminals321.
Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness for open or
short-circuit between
ECM and control sleeve
position sensor.
If NG, repair harness or
connectors.
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to ªLOCKº position.
2. Check harness continuity between con-
trol sleeve position sensor connector
terminalq
3and ECM connector termi-
nals
320. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness for open or
short-circuit between
ECM and control sleeve
position sensor.
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT-I.
Check harness continuity between electri-
cal fuel injection pump connector termi-
nalsq
1and ECM connector terminals
322. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness for open or
short-circuit between
ECM and control sleeve
position sensor.
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT-II.
Check harness continuity between ECM
connector terminal
327and engine
ground. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
ENG
Check the following:
IHarness for open or
short-circuit.
If NG, repair harness or
connectors.
qA
YEC248A
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DTC P1207 CONT SLEEV POS SENTD27Ti
EC-416