2003 NISSAN X-TRAIL turn signal

DTC P0500 VSS
EC-239
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DTC P0500 VSSPFP:32702
Component DescriptionEBS00B6N
The vehicle speed signal is sent to the combination meter from the ESP/TCS/ABS control unit (with ESP mod-
els), 4WD/ABS control unit (without ESP models). The combination meter then sends a signal to the ECM.
ECM Terminals and Reference ValueEBS00B6O
Specification data are reference values and are measured between each terminal and body ground.
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 LogicEBS00B6P
DTC Confirmation ProcedureEBS00B6Q
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
81 L/B Vehicle speed sensor[Engineisrunning]
lLift up the vehicle
lVehicle speed is 40 km/h (25MPH)Approximately 2.3V
PBIB0531E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0500
0500Vehicle speed sensorThe almost 0 km/h (0 MPH) signal from
combination meter is sent to ECM even
when vehicle is being driven.
lHarness or connectors
(The sensor circuit is open or shorted)
lWheel sensor
lESP/TCS/ABS control unit (with ESP models)
l4WD/ABS control unit (without ESP models)
lCombination meter

DTC P0500 VSS
EC-243
[QR (WITH EURO-OBD)]
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Diagnostic ProcedureEBS00B6T
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 toBRC-60
orBRC-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 toDI-10, "
Meter/Gauge Operation and Odo/Trip Meter Segment Check in Diagnosis Mode"(LHD mod-
els),DI-28, "
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.
lHarness connectors M62, F42
lHarness for open or short between ECM and combination meter
>> Repair harness or connectors.
5.CHECK INTERMITTENT INCIDENT
PerformEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.

EC-244
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DTC P0550 PSP SENSOR
DTC P0550 PSP SENSOR
PFP:49763
Component DescriptionEBS00CZJ
Power steering pressure (PSP) sensor is installed to the power
steering high-pressure tube and detects a power steering load. This
sensor is a potentiometer which transforms the power steering load
into output voltage, and emits the voltage signal to the ECM. The
ECM controls the electric throttle control actuator and adjusts the
throttle valve opening angle to increase the engine speed and
adjusts the idle speed for the increased load.
CONSULT-II Reference Value in Data Monitor ModeEBS00CZK
Specification data are reference values.
ECM Terminals and Reference ValueEBS00CZL
Specification data are reference values and are measured between each terminal and body ground.
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.
On Board Diagnosis LogicEBS00CZM
DTC Confirmation ProcedureEBS00CZN
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
PBIB0502E
MONITOR ITEM CONDITION SPECIFICATION
PW/ST SIGNAL
lEngine: After warming up, idle
the engineSteering wheel is in neutral position.
(Forward direction)OFF
Steering wheel is turned. ON
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
58 B Sensors' ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
65 RSensor's power sup-
ply[Ignition switch “ON”]Approximately 5V
67 PPower steering pres-
sure sensor[Engine is running]
lSteering wheel is being turned.0.5 - 4.0V
[Engine is running]
lSteering wheel is not being turned.0.4 - 0.8V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0550
0550Power steering pres-
sure sensor circuitAn excessively low or high voltage from the
sensor is sent to ECM.
lHarness or connectors
(The sensor circuit is open or shorted)
lPower steering pressure sensor

EC-248
[QR (WITH EURO-OBD)]
DTC P0550 PSP SENSOR
4.CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 67 and PSP sensor terminal 2.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connectors.
5.CHECK PSP SENSOR
Refer toEC-248, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace PSP sensor.
6.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00CZQ
POWER STEERING PRESSURE SENSOR
1. Reconnect all harness connectors disconnected.
2. Start engine and let it idle.
3. Check voltage between ECM terminal 67 and ground under the
following conditions.Continuity should exist.
Condition Voltage
Steering wheel is being turned fully. Approximately 3.6V
Steering wheel is not being turned. Approximately 0.6V
PBIB0570E

DTC P0605 ECM
EC-249
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DTC P0605 ECMPFP:23710
Component DescriptionEBS00B72
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis LogicEBS00B73
FAI L-S AFE MO DE
ECM enters fail-safe mode when malfunction A is detected.
DTC Confirmation ProcedureEBS00B74
Perform "PROCEDURE FOR MALFUNCTION A" first. If the 1st trip DTC cannot be confirmed, perform "
PROCEDURE FOR MALFUNCTION B". If there is no problem on "PROCEDURE FOR MALFUNCTION
B", perform "PROCEDURE FOR MALFUNCTION C".
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If 1st trip DTC is detected, go toEC-251, "
Diagnostic Procedure"
.
With GST
Follow the procedure “With CONSULT-II” above.
SEF093X
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0605
0605Engine control moduleA) ECM calculation function is malfunctioning.
lECM B) ECM EEP-ROM system is malfunctioning.
C) ECM self shut-off function is malfunctioning.
Detected items Engine operation condition in fail-safe mode
Malfunction AECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5
degrees) by the return spring.
SEF058Y

EC-254
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DTC P0650 MI
Diagnostic Procedure
EBS00B7A
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.
lFuse block (J/B) connector M1
l10A fuse
lHarness 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.
lHarness connectors M61, F41
lHarness 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-264
[QR (WITH EURO-OBD)]
DTC P1102 MAF SENSOR
4.CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between MAF sensor terminal 3 and ECM terminal 80.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between MAF sensor terminal 1 and ECM terminal 72.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK MASS AIR FLOW SENSOR
Refer toEC-264, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace mass air flow sensor.
7.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00B7N
MASS AIR FLOW SENSOR
1. Reconnect harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 72 (Mass air flow sensor
signal) and ground.
*: Check for liner voltage rise in response to engine being increased to about
4,000 rpm.
4. If the voltage is out of specification, proceed the following.
lTurn ignition switch "OFF". Continuity should exist.
Continuity should exist.
Condition Voltage V
Ignition switch "ON" (Engine stopped.) Approx. 1.0
Idle (Engine is warmed-up to normal
operating temperature.)1.1 - 1.5
2,500 rpm (Engine is warmed-up to
normal operating temperature.)1.6 - 2.0
Idle to about 4,000 rpm* 1.5 - 2.0 to Approx. 4.0
PBIB0537E

DTC P1111 IVT CONTROL SOLENOID VALVE
EC-269
[QR (WITH EURO-OBD)]
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Diagnostic ProcedureEBS00B7V
1.CHECK POWER SUPPLY CIRCIUT
1. Turn ignition switch "OFF".
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch "ON".
4. Check voltage between intake valve timing control solenoid
valve terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTION PART
Check the harness for open or short between intake valve timing control solenoid valve and ECM relay.
>> Repair harness or connectors.
3.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 107 and intake valve timing control solenoid valve termi-
nal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer toEC-270, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace intake valve timing control solenoid valve.Voltage: Battery voltage
PBIB0511E
PBIB0285E
Continuity should exist.