check engine NISSAN TERRANO 2004 Service Repair Manual

ACTIVE TEST MODE
TEST ITEMCONDITION JUDGEMENTCHECK ITEM (REMEDY)
TARGET F/INJ I
Engine: Return to the original
trouble condition.
I Fix the target injection quantity
using CONSULT-II. If trouble symptom disappears, see
CHECK ITEM
I
Control sleeve position sensor.
FUEL CUT SOL/V I
Ignition switch: ON
I Turn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound. Solenoid valve makes an operating
sound.
I
Harness and connector
I Solenoid valve
EGRC SOL/V A I
Ignition switch: ON
I Turn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound. Solenoid valve makes an operating
sound.
I
Harness and connector
I Solenoid valve
EGRC SOL/V B I
Ignition switch: ON
I Turn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound. Solenoid valve makes an operating
sound.
I
Harness and connector
I Solenoid valve
THROT CONT
SOL/V I
Ignition switch: ON
I Turn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound. Solenoid valve makes an operating
sound.
I
Harness and connector
I Solenoid valve
GLOW RLY I
Ignition switch: ON (Engine
stopped)
I Turn the glow relay ªONº and
ªOFFº using CONSULT-II and
listen to operating sound. Glow relay makes the operating
sound.
I
Harness and connector
I Glow relay
INJ TIMING I
Engine: Return to the original
trouble condition
I Retard the injection timing using
CONSULT-II. If trouble symptom disappears, see
CHECK ITEM.
I
Adjust initial injection timing
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONTD27Ti
CONSULT-II (Cont'd)
EC-354
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Introduction
The engine has an ECM to control major systems such as fuel
injection control, fuel injection timing control, glow control system,
etc. The ECM accepts input signals from sensors and instantly
drives electronic fuel injection pump. It is essential that both input
and output signals are correct and stable. It is also important that
there are no problems such as vacuum leaks, with the engine.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or faulty wiring. In this case,
careful checking of suspected circuits may help prevent the unnec-
essary replacement of good parts.
A visual check may not be sufficient to determine the cause of the
problems. An active road test with CONSULT-II or a circuit tester
connected should be performed. Follow the ªWork Flowº on the
next page.
Before undertaking actual checks, take a few minutes to talk with
a customer who approaches with a driveability complaint. The cus-
tomer can supply important information about such problems,
especially intermittent ones. Find out what symptoms are present
and under what conditions they occur. A ªDiagnostic Worksheetº
like the example on the next page should be used.
Start your diagnosis by looking for ªconventionalº problems first.
This will help troubleshoot driveability problems on a vehicle with
an electronically controlled engine.
SEF858S
SEF233G
SEF234G
TROUBLE DIAGNOSESTD27Ti
EC-357
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Description for Work Flow
STEPDESCRIPTION
STEP I Get detailed information about the conditions and the environment when the incident/symptom occurred using the
ªDIAGNOSTIC WORKSHEETº as shown on the next page.
STEP II Before confirming the concern, check and write down (print out using CONSULT-II) the Diagnostic Trouble Code
(DTC), then erase the code. (Refer to EC-344). The DTC can be used when duplicating the incident at STEP III &
IV.
Study the relationship between the cause, specified by DTC, and the symptom described by the customer. (The
ªSymptom Matrix Chartº will be useful. Refer to EC-363.)
STEP III Try to confirm the symptom and under what conditions the incident occurs.
The ªDIAGNOSTIC WORK SHEETº is useful to verify the incident. Connect CONSULT-II to the vehicle in DATA
MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the malfunction code is detected, skip STEP IV and perform STEP V.
STEP IV Try to detect the Diagnostic Trouble Code (DTC) by driving in (or performing) the ªDTC CONFIRMATION PROCE-
DUREº. Check and read the DTC by using CONSULT-II.
During the DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO TRIG) mode
and check real time diagnosis results.
In case the ªDTC CONFIRMATION PROCEDUREº is not available, perform the ªOVERALL FUNCTION CHECKº
instead. The DTC cannot be displayed by this check, however, this simplified ªcheckº is an effective alternative.
The ªNGº result of the ªOVERALL FUNCTION CHECKº is the same as the DTC detection.
STEP V Take the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTC.
If the normal code is indicated, proceed to the BASIC INSPECTION. Refer to EC-361. Then perform inspections
according to the Symptom Matrix Chart. Refer to EC-363.
STEP VI Identify where to begin diagnosis based on the relationship study between symptom and possible causes. Inspect
the system for mechanical binding, loose connectors or wiring damage using (tracing) ªHarness Layoutsº.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in ªDATA MONITOR
(AUTO TRIG)º mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CON-
SULT-II. Refer to EC-369.
The ªDIAGNOSTIC PROCEDUREº in EC section contains a description based on open circuit inspection. A short
circuit inspection is also required for the circuit check in the DIAGNOSTIC PROCEDURE.
Repair or replace the malfunctioning parts.
STEP VII Once you have repaired the circuit or replaced a component, you need to run the engine in the same conditions
and circumstances which resulted in the customer's initial complaint.
Perform the ªDTC CONFIRMATION PROCEDUREº and confirm the normal code (Diagnostic trouble code No. 55)
is detected. If the incident is still detected in the final check, perform STEP VI by using a different method from the
previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) DTC in ECM. (Refer
to EC-344.)
TROUBLE DIAGNOSESTD27Ti
EC-360
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Basic Inspection
Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;
IHeadlamp switch is OFF,
I Air conditioner switch is OFF,
I Rear defogger switch is OFF,
I Steering wheel is in the straight-ahead position, etc.
BEFORE STARTING
1. Check service records for any recent
repairs that may indicate a related
problem, or the current need for
scheduled maintenance.
2. Open engine hood and check the fol- lowing:
I Harness connectors for improper con-
nections
I Vacuum hoses for splits, kinks, or
improper connections
I Wiring for improper connections,
pinches, or cuts
3.Using priming pump, bleed air from fuel system. Refer to ªFuel Filter Checkº in
MA section.
CONNECT CONSULT-II TO THE
VEHICLE.
Connect ªCONSULT-IIº to the data link
connector for CONSULT-II and select
ªENGINEº from the menu.
DOES ENGINE START?
Ye s
ENo Turn ignition switch to
ªLOCKº position, wait 5
seconds and then start
engine. If engine fails to
start, check diagnostic
trouble code (DTC).
Run engine for 10 minutes.
CHECK IDLE SPEED.
Read engine idle speed in ªDATA
MONITORº mode with CONSULT-II.
725 rpm   50 (in N position)
----------------------------------------------------------------------------------------------------------------------------------- -OR------------------------------------------------------------------------------------------------------------------------------------
Check idle speed using tachometer
tester.
725 rpm   50 (in N position)
(Go to qAon next page.)
SEF142I
NEF463
NRS122
NEF464
SEF817Y
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TROUBLE DIAGNOSESTD27Ti
EC-361
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qA
CHECK INJECTION TIMING.
1. Set No. 1 piston at TDC on its com-pression stroke.
2. Remove injection tubes and air bleeder on the back of injection pump.
3. Set dial gauge so its indicator points to somewhere between 1.0 and 2.0 mm
(0.039 and 0.079 in) on the scale.
4. Turn crankshaft two turns clockwise and check that dial gauge indicates the
same value again.
5. Turn crankshaft counterclockwise about 100 degrees, then turn crankshaft
clockwise slowly, and set dial gauge
indicator to 0 mm at the position it
stops.
6. Turn crankshaft clockwise and set it at TDC using the mark on the crankshaft
pulley.
7. Read plunger lift. Plunger lift:0.36   0.02 mm (0.0142   0.0008
in) at TDC
I When repeating the checking, start
with step 5.
NG
EOK
Bleed air from fuel system.
After this inspection,
unnecessary diagnostic
trouble code No. might be
displayed.
Erase the stored memory
in ECM.
Refer to ªHOW TO ERASE
DTCº (EC-344).
OK
INSPECTION END
Adjusting
1. If plunger lift is not within the specified value, adjust by turning injection pump.
I If indication is smaller than the
specified value, turn pump body
away from engine.
I If indication is larger than the speci-
fied value, turn pump body towards
engine.
2. Tighten injection pump securing bolts and nuts.
Nut:
: 20-25N ×m
(2.0 - 2.5 kg-m, 14 - 18 ft-lb)
Bolt:
: 32-42N ×m
(3.3 - 4.3 kg-m, 24 - 31 ft-lb)
3. Remove dial gauge and install air bleeder with new washer.
4. Install injection tubes. Flare nut:
: 20-25N ×m
(2.0 - 2.5 kg-m, 14 - 18 ft-lb)
5. Bleed air from fuel system.
Refer to ªDRAINING SYSTEMº of
ªENGINE MAINTENANCEº in MA sec-
tion.
EGo to.
NEF468
NEF465
NEF466
EEF160A
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TROUBLE DIAGNOSESTD27Ti
Basic Inspection (Cont'd)
EC-362
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Symptom Matrix Chart
SYSTEM
Ð Basic engine
control systemSYMPTOM
Reference page
Feature of symptom, Check pointHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator lamp illuminates.
Can be detected by CONSULT-II?
Fuel cut NO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATING
BLACK SMOKE
WHITE SMOKENew CT/CS
AAAB AC AD AE AF AG AH AJ AK AL AM AP HA
Injec-
tion
timing Advanced
qq
IIqIqqIqEC-361
Retarded qq
IIqIqqIqEC-361
Electric injection
pump mainframe
IIIIqqqqqIqqqIIqqIq qqq Ð*1
Injection nozzle qqqqqqq
Iqq qIIIEC-336 *2
Glow system qq
III IEC-412
Engine body qq
IIqqqIqq qIIqqqIEM-
section *3
EGR system
II IEC-454
Air cleaner and
ducts
II IqMA-
section *4
I; High Possibility Item
q ; Low Possibility Item
*1: Insufficient or excess amount. Governor malfunction may be the cause.
*2: Depends on open-valve pressure and spray pattern.
*3: Caused mainly by insufficient compression pressure.
*4: Symptom varies depending on off-position of air duct, etc.
TROUBLE DIAGNOSESTD27Ti
EC-363
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SYSTEM Ð Engine control system
Malfunction
SYMPTOM
Reference page
Feature of symptom
Check point
HARD/NO START/
RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE) Malfunction indicator lamp illuminates.
Can be detected by CONSULT-II?
Fuel cut NO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATINGBLACK SMOKE
WHITE SMOKE
New CT/CS
AAAB AC AD AE AF AG AH AJ AK AL AM AP HA
Mass air flow sensor circuit open, ground short qqq q
EC-379
short qqq
Engine coolant temperature sensor
circuit open, short qqq qqq qq EC-384Compensation according to
engine coolant temperature does
not function.
Vehicle speed sensor circuit open, short qqEC-420
Control sleeve position sensor circuit open, short qqq qqqEC-437
Injection timing control valve circuit open, short qqq
EC-403Injection timing cannot be con-
trolled.
ground short qq
Accelerator switch (F/C) circuit open, short qqq
EC-388
ground short qq
Needle lift sensor circuit open, short qqqEC-450
Fuel cut solenoid valve circuit open, ground short q qqq q
EC-399
short qqqEngine runs on after turning igni-
tion switch OFF.
Fuel temperature sensor circuit open, shortqq qq qq qq q q EC-395Compensation for amount of fuel
injected according to fuel tem-
perature does not function.
Accelerator position sensor circuit open, short qqq qqEC-388
Crankshaft position sensor (TDC) cir-
cuit open, short
qq qq
EC-408
noise qqq qq
TROUBLE DIAGNOSESTD27Ti
Symptom Matrix Chart (Cont'd)
EC-364
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SYSTEM Ð Engine control systemMalfunction
SYMPTOM
Reference page
Feature of symptomCheck point
HARD/NO START/
RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE) Malfunction indicator lamp illuminates.
Can be detected by CONSULT-II?
Fuel cut NO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATINGBLACK SMOKE
WHITE SMOKE
New CT/CS
AAAB AC AD AE AF AG AH AJ AK AL AM AP HA
Start signal circuit open, shortqq EC-472 Start control does not function.
Air conditioner switch circuit open, ground short
EC-463Air Conditioner does not stop
operating.
short Air Conditioner does not work.
Ignition switch circuit open q qqq
EC-472
short Engine does not stop.
Power supply for ECM circuit open qqq
EC-375
short qq
Throttle control solenoid valve circuit open, short EC-458Does not operate.
ground short qq q Does not stop operating.
EGRC-solenoid valve A, B circuit open, short EC-454
ground short qDoes not stop operating.
Glow relay circuit open qqqq q
EC-412Glow lamp does not turn on.
short Glow lamp does not turn off.
ECM relay (Self-shut off) circuit open qqq q
EC-469
short qqGround short makes engine
unable to stop.
Air conditioner relay circuit open EC-463Air conditioner does not operate.
short Air conditioner does not stop
operating.
ECM, Connector circuit open, short qqqqqqqqqqqqqq qqqqqqqqqqq EC-369, 475
TROUBLE DIAGNOSESTD27Ti
Symptom Matrix Chart (Cont'd)
EC-365
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Diagnostic Procedure
INSPECTION START
Start engine.
Is engine running?
Ye s
ENoCHECK POWER SUPPLY-I.
1. Turn ignition switch to ªONº posi-
tion.
2. Check voltage between ECM connector terminal
507and
engine ground with
CONSULT-II or voltage tester.
Voltage: Battery voltage
If NG, check the following:
I 10A fuse
I Harness for open or short-circuit
between ECM and ignition switch
If NG, replace 10A fuse or repair
harness or connectors.
OK
Go to q
BªCHECK GROUND CIR-
CUITº.
CHECK POWER SUPPLY-II.
1. Stop engine.
2. Check voltage between ECM connector terminal
325and
engine ground with CON-
SULT-II or voltage tester.
Voltage: Battery voltage
OK
ENG Check the following:
IECM relay
I 20A fuse
I Harness for open or short-circuit
between ECM and battery
I Harness connectors M787, F66
(LHD models)
I Battery connection and charge
If NG, replace fuse or charge bat-
tery or repair harness or connec-
tors.
qA
NEF642
YEC283A
MEC946D
MEC943D
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TROUBLE DIAGNOSIS FOR POWER SUPPLYTD27Ti
EC-376
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qA
CHECK POWER SUPPLY-III.
1. Turn ignition switch to ªONº positionand then to ªLOCKº position.
2. Check voltage between ECM connector terminals
107,108,109and engine
ground with CONSULT-II or tester.
Voltage: After turning ignition switch to
ªLOCKº position, battery voltage
will exist for a few seconds, then
drop to approximately 0V.
NG
EOK Go toqBªCHECK
GROUND CIRCUITº.
Case-1: Battery voltage does not exist.
Case-2: Battery voltage exists for more than a few
seconds.
Case-1 Case-2
EGo toªCHECK ECM
RELAYº.
CHECK HARNESS CONTINUITY
BETWEEN ECM RELAY AND ECM.
1. Disconnect ECM harness connector.
2. Disconnect ECM relay harness connec- tor.
3. Check harness continuity between ECM connector terminals
325and
ECM relay connector terminal q
2, and
ECM connector terminals
107,108,
109and ECM relay connector termi-
nal q
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)
I Harness for open or
short-circuit between
ECM relay connector
and ECM connector.
If NG, repair harness or
connectors.
CHECK VOLTAGE BETWEEN ECCS
RELAY AND ENGINE GROUND.
Check voltage between ECM relay con-
nector terminals q
1,q3and engine ground
with CONSULT-II or tester.
Voltage: Battery voltage
OK
ENG Check the following:
I20A fuse
I Fuse box and battery
connections
I Harness for open or
short-circuit between
ECM relay and battery
If NG, replace fuse or
repair harness or connec-
tors.
CHECK ECM RELAY.
1. Remove ECM relay.
2. Apply 12V direct current between relay terminals q
1andq2.
3. Check continuity between relay termi- nals q
3andq5.
12V ( q
1-q2) applied:
Continuity exists.
No voltage applied: No continuity
OK
ENG Replace ECM relay.
qB
MEC944D
MEC945D
NEF350
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TROUBLE DIAGNOSIS FOR POWER SUPPLYTD27Ti
Diagnostic Procedure (Cont'd)
EC-377
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