2001 NISSAN X-TRAIL turn signal

ELECTRICAL LOAD SIGNAL
EC-1381
[QR20(WITHOUT EURO-OBD)]
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EC
5.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 52 and ground under the
following conditions.
OK or NG
OK >> GO TO 6.
NG >> GO TO 8.
6.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 53 and ground under the
following conditions.
OK or NG
OK >> GO TO 7.
NG >> GO TO 12.
7.CHECK HEATER FAN CONTROL CIRCUIT OVERALL FUNCTION
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 55 and ground under the
following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 16.
8.CHECK REAR WINDOW DEFOGGER FUNCTION
1. Start engine.
2. Turn “ON” the rear window defogger switch.
3. Check the rear windshield. Is the rear windshield heated up?
Ye s o r N o
Ye s > > G O T O 9 .
No >> Refer to GW-10, "
REAR WINDOW DEFOGGER" .
Condition Voltage
Rear window defogger switch “ON” BATTERY VOLTAGE
Rear window defogger switch “OFF” 0V
PBIB0660E
Condition Voltage
Lighting switch “ON” at 2nd position BATTERY VOLTAGE
Lighting switch “OFF” 0V
PBIB0070E
Condition Voltage
Heater fan control switch “ON” 0V
heater fan control switch “OFF” Approximately 5V
PBIB0661E

EC-1382
[QR20(WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
9. CHECK REAR WINDOW DEFOGGER INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect rear window defogger relay.
4. Check harness continuity between ECM terminal 52 and harness connector M17 terminal 1 (RHD mod-
els), 5 (LHD models).
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M62, F42
●Harness for open and short between ECM and harness connector M17
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK INTERMITTENT INCIDENT
Perform EC-1192, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
12. CHECK HEADLAMP FUNCTION
1. Start engine.
2. Turn the lighting switch “ON” at 2nd position.
3. Check that headlamps are illuminated.
OK or NG
OK >> GO TO 13.
NG >> Refer to LT-4, "
HEADLAMP" or LT- 9 , "HEADLAMP - DAYTIME LIGHT SYSTEM -" . Continuity should exist.

ELECTRICAL LOAD SIGNAL
EC-1383
[QR20(WITHOUT EURO-OBD)]
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EC
13.CHECK HEADLAMP INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect lighting switch harness connectors.
4. Check harness continuity between ECM terminal 53 and lighting switch terminal 9, 10 under the following
conditions.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 15.
NG >> GO TO 14.
14.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E60, F36
●Diode E123, E124
●Harness for open and short between ECM and lighting switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
15.CHECK INTERMITTENT INCIDENT
Perform EC-1192, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
16.CHECK HEATER FAN CONTROL FUNCTION
1. Start engine.
2. Turn “ON” the fan control switch.
3. Check the blower fan motor. Does the blower fan motor activate?
Ye s o r N o
Ye s > > G O T O 1 7 .
No >> Refer to AT C - 3 3 , "
TROUBLE DIAGNOSIS" .
Condition Continuity
1 Should exist
2 Should not exist
PBIB0662E

ENGINE CONTROL SYSTEM
EC-1401
[YD]
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EC
DECELERATION CONTROL
Input/Output Signal Chart
The ECM sends a fuel cut signal to the fuel injector and suction control valve during deceleration for better fuel
efficiency. The ECM determines the time of deceleration according to signals from the accelerator pedal
released position switch and crankshaft position sensor (TDC).
Fuel Injection Timing Control SystemEBS0036H
DESCRIPTION
The target fuel injection timing in accordance with the engine speed and the fuel injection amount are recorded
as a map in the ECM beforehand. The ECM determines the optimum injection timing using sensor signals
accordance with the map.
Air Conditioning Cut ControlEBS0036I
INPUT / OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
This system improves acceleration when the air conditioner is used.
When the accelerator pedal is fully depressed, the air conditioner is turned off for a few seconds.
When engine coolant temperature becomes excessively high, the air conditioner is turned off. This continues
until the engine coolant temperature returns to normal.
Fuel Cut Control (At No Load & High Engine Speed)EBS0036J
INPUT/OUTPUT SIGNAL CHART
If the engine speed is above 2,800 rpm with no load (for example, in neutral and engine speed over 2,800
rpm) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed.
Fuel cut will operate until the engine speed reaches 1,500 rpm, then fuel cut is cancelled.
NOTE:
This function is different from deceleration control listed under EC-1399, "
Fuel Injection Control Sys-
tem" .
Sensor Input Signal to ECM ECM Function Actuator
Accelerator pedal released position switch Accelerator pedal position Fuel injection
control (Decel-
eration control)EDU
Fuel injectors
Crankshaft position sensor (TDC) Engine speed
Sensor Input Signal to ECM ECM Function Actuator
Air conditioner switch Air conditioner “ON” signal
Air conditioner
cut controlAir conditioner relay Accelerator pedal position sensor Accelerator pedal opening angle
Vehicle speed sensor Vehicle speed
Engine coolant temperature sensor Engine coolant temperature
Sensor Input Signal to ECM ECM Function Actuator
Vehicle speed sensor Vehicle speed
Fuel cut controlEDU
Fuel injectors Accelerator pedal released position switch Accelerator position
Crankshaft position sensor (TDC) Engine speed

EC-1404
[YD]
BASIC SERVICE PROCEDURE
BASIC SERVICE PROCEDURE
PFP:00018
Fuel FilterEBS0036N
DESCRIPTION
A water draining cock is on the lower side and a priming pump for bleeding air is on the upper side.
AIR BLEEDING
Pump the priming pump to bleed air.
●When air is bled completely, the pumping of the priming pump
suddenly becomes heavy. Stop the operation at that time.
●If it is difficult to bleed air by the pumping of the priming pump
(the pumping of the priming pump does not become heavy), dis-
connect the fuel supply hose between the fuel filter and the fuel
gallery. Then, perform the operation described above, and make
sure that fuel comes out. (Use a pan, etc. so as not to spill fuel.
Do not let fuel get on engine and other parts.) After that, connect
the hose, then bleed air again.
●Start engine and let it idle for at least one minute after perform-
ing air bleeding.
WATER DRAINING
1. Remove the fuel filter, filter bracket, protector assembly from the dash panel as follows.
a. Remove the air cleaner case (upper), air duct assembly, and vacuum hose for brake booster (between the
vacuum pump and vacuum pipe).
CAUTION:
After the duct is removed, cover the opening with gum tape, etc. to prevent foreign object from
getting into the engine during the operation.
b. Remove the mounting nuts on the dash panel, then remove the fuel filter, filter bracket, and protector
assembly from the dash panel.
●It is not necessary to disconnect the fuel hose.
2. Using a tool such as a pliers, loosen the water draining cock at the bottom of the fuel filter.
Accelerator Pedal Released Position LearningEBS009NW
DESCRIPTION
"Accelerator Pedal Released Position Learning" is an operating to learn the fully released position of the
accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed
when accelerator work unit or ECM is replaced.
OPERATION PROCEDURE
1. Turn ignition switch "ON".
2. Select "OFF ACCEL PO SIG" in "ACTIVE TEST" mode with
CONSULT-II
3. Make sure that accelerator pedal is released.
SEF375Y
PBIB0411E

TROUBLE DIAGNOSIS
EC-1419
[YD]
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EC
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Camshaft position sensor circuitEC-1484
Start signal circuitEC-1566
Ignition switch circuitEC-1442
Power supply for ECM circuit11EC-1442
Cooling fan relay circuit 2EC-1508
EGR volume control valve circuit 1EC-1551
Glow relay circuit1EC-1544
ECM relay (Self-shutoff) circuit1EC-1538
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2EC-1494,EC-
1536
Air conditioner relay circuitEC-1572
Air conditioner switch circuitEC-1572
NATS (Nissan Anti-theft System)1EC-1406
SYSTEM — Basic engine control systemSYMPTOM
Reference page
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 illuminates. Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA

TROUBLE DIAGNOSIS
EC-1429
[YD]
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ECB23 GY/LAccelerator pedal position
sensor 2 power supply[Ignition switch “ON”]Approximately 5V
D1 L/OR Tachometer[Engine is running]
●Warm-up condition
●Idle speed0 - 12.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 12.5V
D2 OR Glow lamp[Ignition switch “ON”]
●Glow lamp is “ON”Approximately 1.0V
[Ignition switch “ON”]
●Glow lamp is “OFF”BATTERY VOLTAGE
(11 - 14V)
D9 OR/L Malfunction indicator[Ignition switch “ON”]Approximately 1.0V
[Engine is running]
●Idle speedBATTERY VOLTAGE
(11 - 14V)
D11 L Air conditioner relay[Engine is running]
●Air conditioner switch is “OFF”BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Both air conditioner switch and blower fan
switch are “ON” (Compressor is operating)Approximately 0.1V
D14 G/YAccelerator pedal
released position switch[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal slightly depressedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully releasedApproximately 0V
D18
D19W/R
W/RIgnition switch [Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
D23 PU/W Air conditioner switch[Engine is running]
●Air conditioner switch is “OFF”BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Both air conditioner switch and blower fan
switch are “ON” (compressor is operating)Approximately 0.1V
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
●For a few seconds after turning ignition
switch “OFF”Approximately 0V
[Ignition switch “OFF”]
●A few seconds passed after turning ignition
switch “OFF”BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0397E
PBIB0398E

TROUBLE DIAGNOSIS
EC-1431
[YD]
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EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
CONSULT-II FunctionEBS0037H
CONSULT-II INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector, which is located
under the driver side dash panel.
3. Turn ignition switch ON.
E11 L CAN communication line[Ignition switch “ON”]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
E12 P/BPower steering oil pres-
sure switch[Engine is running]
●Steering wheel is being turnedApproximately 0V
[Engine is running]
●Steering wheel is not being turnedBATTERY VOLTAGE
(11 - 14V)
E13 G/ORPark/Neutral position
switch[Ignition switch “ON”]
●Gear position is “Neutral” Approximately 0V
[Ignition switch “ON”]
●Except the above gear positionBATTERY VOLTAGE
(11 - 14V)
E16 G/W Suction control valve 2[Engine is running]
●Warm-up condition
●Idle speed0 - 12.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 12.5V
E21 L/B Vehicle speed sensor[Engine is running]
●Lift up the vehicle
●In 2nd gear position
●Vehicle speed is 30 km/h (19 MPH)0 - 5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0401E
PBIB0402E
PBIB0386E
PBIB0376E