NISSAN X-TRAIL 2005 Service Repair Manual

TROUBLE DIAGNOSIS
EC-87
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nismTiming chain
55555 55 5EM-46
CamshaftEM-56
Intake valve timing controlEM-46
Intake valve
3EM-70
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-25
, EX-
2Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery
55555 55 52EM-27
, LU-
13 , LU-10 ,
LU-5
Oil level (Low)/Filthy oilLU-7
Cooling Radiator/Hose/Radiator filler cap
55555 55 25CO-12
Thermostat 5CO-23
Water pumpCO-21
Water galleryCO-7
Cooling fan 5CO-19
Coolant level (low)/Contaminated
coolantCO-9
NATS (Nissan Anti-theft System) 1 1EC-64 or
BL-108
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

EC-88
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

Engine Control Component Parts LocationEBS010LU
PBIB1978E

TROUBLE DIAGNOSIS
EC-89
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

PBIB1979E

EC-90
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

PBIB1980E

TROUBLE DIAGNOSIS
EC-91
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

PBIB1997E

EC-92
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

PBIB2887E

TROUBLE DIAGNOSIS
EC-93
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Circuit DiagramEBS010LV
TBWB0691E

EC-94
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

TBWB0462E

TROUBLE DIAGNOSIS
EC-95
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

ECM Harness Connector Terminal LayoutEBS010LW
ECM Terminals and Reference ValueEBS010LX
PREPARATION
1. ECM is located behind the glove box. For this inspection,
remove glove box.
2. Remove ECM harness protector.
3. When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown at right.
4. Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.

Use extreme care not to touch 2 pins at one time.

Data is for comparison and may not be exact.
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
MBIB0045E
PBIB1973E
PBIB1512E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]

Idle speedBody ground

EC-96
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

2PU/RHeated oxygen sensor 2
heater[Engine is running]

Warm-up condition

Engine speed is below 3,600 rpm after the fol-
lowing conditions are met
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load0 - 1.0V
[Ignition switch: ON]

Engine stopped
[Engine is running]

Engine speed is above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
3W/BThrottle control motor
relay power supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4GThrottle control motor
(Close)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T), 1st (M/T)

Accelerator pedal: Fully released0 - 14V
5RThrottle control motor
(Open)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T), 1st (M/T)

Accelerator pedal: Fully depressed0 - 14V
6*
1YVIAS control solenoid
valve[Engine is running]
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Engine speed is above 5,000 rpm0 - 1.0V
12 PPower steering pressure
sensor[Engine is running]

Steering wheel is being turned0.5 - 4.0V
[Engine is running]

Steering wheel is not being turned0.4 - 0.8V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1104E
PBIB1105E