NISSAN TERRANO 2004 Service Repair Manual

Component Inspection
STOP LAMP SWITCH AND BRAKE SWITCH 2
1. Turn ignition switch to ªLOCKº position.
2. Disconnect switch connectors.
3. Check continuity between terminalsq
1andq2.
Continuity:
Brake pedal Stop lamp switch Brake switch 2
Released NoNo
Depressed YesYes
If NG, replace stop lamp switch or brake switch.
MEC968D
DTC P0571 BRAKE SWTD27Ti
EC-426
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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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Wiring Diagram
YEC249A
DTC P0650 MITD27Ti
EC-428
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Diagnostic Procedure
INSPECTION START
CHECK MI POWER SUPPLY.
1. Turn ignition switch ªLOCKº.
2. Disconnect combination meter harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between combination meter terminal q
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)
I 10A fuse
I Harness 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 ªLOCKº.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals
215and combination meter
terminal q14. 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 ªLOCKº.
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
CONDITION Terminal No.
(Polarity) Continuity
1 q
28(+) -q14(þ) Should not
exist.
2 q
28(þ) -q14(+) Should
exist.
YEC239A
YEC240A
YEC241A
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DTC P0650 MITD27Ti
EC-429
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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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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-430 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-430 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-431
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Component Description
ELECTRIC GOVERNOR
The electric governor is built into the fuel injection pump. It moves
the control sleeve to increase or decrease the amount of fuel
injected.
When current flows through the coil, a magnetic force is produced,
rotating the rotor. The rotor shaft is installed to the control sleeve
via a ball pin which is eccentrically situated in relation to the rotor
shaft. With this arrangement, the control sleeve can be moved in
relation to rotor rotation.
The rotor's rotating angle is determined by a balanced condition of
magnetic force (generated by current flow regulated by means of
the ECM) and tension of return spring (installed to rotor). The larger
the current flow through the coil, the greater the rotor's rotating
angle. This means that the control sleeve moves to the right,
increasing the amount of fuel injected.
The ECM regulates the current flow through the coil by changing
the duty cycle ratio which controls the ON-OFF operation of the
electric governor grounding circuit.
On Board Diagnosis Logic
DTCMalfunction is detected when .... Check Items
(Possible cause)
P1206
0108 I
Fuel injection feedback system does not operate
properly. [This system consists essentially of ECM,
electric governor and control sleeve position sensor.] I
Main power supply circuit
I Harness or connectors
(Electric governor and control sleeve position sensor
circuit)
I Electric governor
I ECM
SEF632S
SEF633S
DTC P1206 F/INJ F/B 2TD27Ti
EC-432
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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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Wiring Diagram
YEC677A
DTC P1206 F/INJ F/B 2TD27Ti
EC-434
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Diagnostic Procedure
INSPECTION START
CHECK MAIN POWER SUPPLY.
Refer to EC-375.
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 terminal q
7
and ECM connector terminals107,
108,109. Refer to wiring diagram.
Continuity should exist.
4. Check harness continuity between injection pump connector terminal q
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)
I Harness for open or
short between electronic
control injection pump
and ECM relay
I Harness 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 terminal q
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
ENGHave 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-435
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