2001 NISSAN X-TRAIL Combination

EC-1256
[QR20(WITHOUT EURO-OBD)]
DTC P0500 VSS
Diagnostic Procedure
EBS00N6P
1. CHECK DTC WITH ESP/TCS/ABS CONTROL UNIT, 4WD/ABS CONTROL UNIT
Check DTC with ESP/TCS/ABS control unit (with ESP models), 4WD/ABS control unit (without ESP models).
Refer to BRC-64
or BRC-7 .
OK or NG
OK >> GO TO 2.
NG >> Perform trouble shooting relevant to DTC indicated.
2. CHECK COMBINATION METER
Check combination meter function.
Refer to DI-10, "
Meter/Gauge Operation and Odo/Trip Meter Segment Check in Diagnosis Mode" (LHD mod-
els), DI-30, "
Meter/Gauge Operation and Odo/Trip Meter Segment Check in Diagnosis Mode" (RHD models).
OK or NG
OK >> GO TO 3.
NG >> Perform trouble shooting relevant to combination meter.
3. CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 81 and combination meter terminal 49 (LHD models), 62
(RHD models).
Refer to wiring diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M62, F42
●Harness for open or short between ECM and combination meter
>> Repair harness or connectors.
5. CHECK INTERMITTENT INCIDENT
Perform EC-1192, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.

DTC P0650 MI
EC-1267
[QR20(WITHOUT EURO-OBD)]
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Diagnostic ProcedureEBS00N77
1.CHECK MI POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between combination meter terminal 46 (LHD
models), 59 (RHD models) and ground with CONSULT-II or
tester
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
●Fuse block (J/B) connector M1
●10A fuse
●Harness for open or short between fuse block (J/B) and combination meter
>> Repair harness or connectors.
3.CHECK MI OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 18 and combination meter terminal 62 (LHD models), 52
(RHD models). Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M61, F41
●Harness for open or short between ECM and combination meter
>> Repair open circuit or short to ground or short to power in harness or connectors. Voltage: Battery voltage
PBIB0571E
Continuity should exist.

EC-1268
[QR20(WITHOUT EURO-OBD)]
DTC P0650 MI
5. CHECK COMBINATION METER
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector.
3. Check continuity under the following conditions.
OK or NG
OK >> GO TO 6.
NG >> Replace combination meter. Refer to DI-23, "
Removal and Installation for Combination Meter"
(LHD models), DI-42, "Removal and Installation for Combination Meter" (RHD models).
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1192, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
CONDITION MODEL Terminal No. (Polarity) Continuity
1LHD 62 (+) - 46 (–)
Should exist.
RHD 52 (+) - 59 (–)
2LHD 46 (+) - 62 (–)
Should not exist.
RHD 59 (+) - 52 (–)
PBIB0572E

DTC P0500 VEHICLE SPEED SENSOR (VSS)
EC-1489
[YD]
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DTC P0500 VEHICLE SPEED SENSOR (VSS)PFP:32702
DescriptionEBS004QL
The vehicle speed signal is sent to the combination meter from the 4WD control unit (models with ESP) or the
4WD/ABS control unit (models without ESP).The combination meter then sends a signal to the ECM.
ECM Terminals and Reference ValueEBS004QM
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS004QN
Overall Function CheckEBS004QO
Use this procedure to check the overall function of the vehicle speed sensor circuit. During this check, a DTC
might not be confirmed.
WITH CONSULT-II
1. Lift up the vehicle.
2. Start engine.
3. Read vehicle speed sensor signal by oscilloscope under the fol-
lowing conditions.
●In 2nd gear position.
●Vehicle speed is 30km/h (19MPH)
The oscilloscope should indicate the almost same signal
wave as that shown in the “ECM Terminals and Reference
Va l u e ” .
4. If NG, go to EC-1492, "
Diagnostic Procedure" .
TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
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
PBIB0386E
DTC Malfunction is detected when.... Check Items (Possible Cause)
P0500
●The almost 0 km/h (0 MPH) signal from vehicle
speed sensor is sent to ECM even when vehicle is
being driven.
●An excessively high voltage from the sensor is send
to ECM
●Harness or connectors
(The sensor circuit is open or shorted.)
●Vehicle speed sensor
●Combination meter
●ESP/TCS/ABS control unit (models with ESP)
●4WD control unit (models with ESP)
●4WD/ABS control unit (models without ESP)
SEF864Y

EC-1492
[YD]
DTC P0500 VEHICLE SPEED SENSOR (VSS)
Diagnostic Procedure
EBS004QQ
1. CHECK DTC WITH 4WD CONTROL UNIT AND ESP/TCS/ABS CONTROL UNIT (MODELS WITH ESP)
OR 4WD/ABS CONTROL UNIT (MODELS WITHOUT ESP)
Check DTC with 4WD control unit and ESP/TCS/ABS control unit (models with ESP) or 4WD/ABS control unit
(models without ESP).
Refer to BRC-64, "
TROUBLE DIAGNOSIS" (models with ESP) or BRC-7, "TROUBLE DIAGNOSIS" (models
without ESP).
OK or NG
OK >> GO TO 2.
NG >> Reform trouble shooting relevant to DTC indicated.
2. CHECK SPEEDOMETER FUNCTION
Make sure that speed meter functions properly.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. CHECK ECM INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal E21 and combination meter terminal 50 (LHD models)
or 63 (RHD models). Refer to Wiring Diagram.
4. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M63, F30
●Harness for open and short between ECM and combination meter
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK SPEEDOMATER INPUT SIGNL FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector and 4WD control unit harness connector (models with
ESP) or 4WD/ABS control unit harness connector (models without ESP).
3. Check continuity between combination meter terminal 52 (LHD models) or 42 (RHD models) and 4WD
control unit harness connector (models with ESP) or 4WD/ABS control unit harness connector (models
without ESP). Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.Continuity should exist.
Continuity should exist.

DTC P0500 VEHICLE SPEED SENSOR (VSS)
EC-1493
[YD]
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EC
6.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M14, E106
●Harness for open and short between 4WD control unit (models with ESP) or 4WD/ABS control unit (mod-
els without ESP) and combination meter
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK SPEEDOMETER
Refer to DI-4, "
COMBINATION METERS (LHD MODELS)" or DI-24, "COMBINATION METERS (RHD MOD-
ELS)" .
OK or NG
OK >> GO TO 8.
NG >> Replace combination meter.
8.CHECK INTERMITTENT INCIDENT
Refer to EC-1441, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END

GLOW CONTROL SYSTEM
EC-1547
[YD]
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4.CHECK GLOW CONTROL SYSTEM OVERALL FUNCTION
1. Select “COOLAN TEMP/S” in “DATA MONITOR” mode with
CONSULT-II.
2. Confirm that “COOLAN TEMP/S” indicates approximately 25°C
(77°F). If NG, cool down engine.
3. Turn ignition switch “OFF”.
4. Set voltmeter probe between glow plug and engine body.
5. Turn ignition switch “ON”.
6. Check the voltage between glow plug and engine body under
the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
5.CHECK GLOW INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector M46.
3. Turn ignition switch “ON”.
4. Check voltage between combination meter terminal 46 (LHD
models) or 59 (RHD models) and ground with CONSULT-II or
tester.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
●Fuse block (J/B) connector M1
●10A fuse
●Harness for open or short between combination meter and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
SEF013Y
Conditions Voltage
For 20 seconds after turning ignition switch
“ON”Battery voltage
More than 20 seconds after turning ignition
switch “ON” Approx. 0V
PBIB0425E
Voltage: Battery voltage
PBIB1412E

EC-1548
[YD]
GLOW CONTROL SYSTEM
7. CHECK GLOW INDICATOR LAMP OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal D2 and combination meter terminal 65 (LHD models) or
55 (RHD models). Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M63, F30
●Harness for open or short between combination meter and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK COMBINATION METER
Check combination meter and glow indicator lamp. Refer to DI-4, "
COMBINATION METERS (LHD MODELS)"
or DI-24, "COMBINATION METERS (RHD MODELS)" and DI-43, "WARNING LAMPS" .
OK or NG
OK >> GO TO 17.
NG >> Repair or replace combination meter or glow indicator lamp.
10. CHECK GLOW RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect glow relay.
3. Check voltage between glow relay terminals 1, 3 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.Continuity should exist.
PBIB0373E
Voltage: Battery voltage
PBIB1413E