2005 NISSAN X-TRAIL ESP

DTC P0501 ASCD VEHICLE SPEED SENSOR
EC-1201
[YD (WITH EURO-OBD)]
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Diagnostic ProcedureEBS01FB2
1. CHECK DTC WITH ESP/TCS/ABS CONTROL UNIT (MODELS WITH ESP) OR ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT) (MODELS WITHOUT ESP)
Refer to BRC-60, "
TROUBLE DIAGNOSIS" (models with ESP) or BRC-12, "TROUBLE DIAGNOSIS" (mod-
els without ESP).
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK COMBINATION METER
Check combination meter function.
Refer to DI-4, "
COMBINATION METERS" .
>>INSPECTION END

EC-1202
[YD (WITH EURO-OBD)]
DTC P0502 ASCD VEHICLE SPEED SENSOR

DTC P0502 ASCD VEHICLE SPEED SENSORPFP:24810
Component DescriptionEBS01FC1
The ECM receives vehicle speed sensor signal via CAN communication line. It is sent from combination
meter. The ECM uses this signal for ASCD control. Refer to EC-1339, "
AUTOMATIC SPEED CONTROL
DEVICE (ASCD)" for ASCD functions.
On Board Diagnosis LogicEBS01FC2
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
NOTE:

If DTC P0502 is displayed with DTC U1000 first perform the trouble diagnosis for DTC U1000. Refer
to EC-1056, "
DTC U1000 CAN COMMUNICATION LINE" .
DTC Confirmation ProcedureEBS01FC3
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:
Step 3 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 and warm it up to normal operating temperature (ESP switch OFF).
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Maintain the following condition for at least 5 seconds.
4. If DTC is detected, go to EC-1203, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.Trouble Diagnosis
NameDTC Detecting Condition Possible Cause
P0502
0502Vehicle speed sen-
sor circuit low inputVehicle speed signal is excessively low com-
pared with the driving condition.

Harness or connectors
(The CAN communication line is open or
shorted.)

Combination meter

ABS actuator and electric unit (control unit)
(models without ESP)

ESP/TCS/ABS control unit (models with ESP)

Wheel sensor

ECM
CKPS·RPM (TDC) More than 2,800 rpm
COOLAN TEMP/S More than 60°C (140 °F)
Clutch pedal Released
Shift lever 1st position
MBIB1084E

DTC P0502 ASCD VEHICLE SPEED SENSOR
EC-1203
[YD (WITH EURO-OBD)]
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Diagnostic ProcedureEBS01FC4
1. CHECK DTC WITH ESP/TCS/ABS CONTROL UNIT (MODELS WITH ESP) OR ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT) (MODELS WITHOUT ESP)
Refer to BRC-60, "
TROUBLE DIAGNOSIS" (models with ESP) or BRC-12, "TROUBLE DIAGNOSIS" (models
without ESP).
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK COMBINATION METER
Check combination meter function.
Refer to DI-4, "
COMBINATION METERS" .
>>INSPECTION END

EC-1204
[YD (WITH EURO-OBD)]
DTC P0503 ASCD VEHICLE SPEED SENSOR

DTC P0503 ASCD VEHICLE SPEED SENSORPFP:24810
Component DescriptionEBS01FC5
The ECM receives vehicle speed sensor signal via CAN communication line. It is sent from combination
meter. The ECM uses this signal for ASCD control. Refer to EC-1339, "
AUTOMATIC SPEED CONTROL
DEVICE (ASCD)" for ASCD functions.
On Board Diagnosis LogicEBS01FC6
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
NOTE:

If DTC P0503 is displayed with DTC U1000 first perform the trouble diagnosis for DTC U1000. Refer
to EC-1056, "
DTC U1000 CAN COMMUNICATION LINE" .
DTC Confirmation ProcedureEBS01FC7
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:
Step 3 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 (ESP switch OFF).
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Drive the vehicle at more than 10 km/h (6 MPH) for at least 5
seconds.
4. If DTC is detected, go to EC-1205, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.Trouble Diagnosis
NameDTC Detecting Condition Possible Cause
P0503
0503Vehicle speed sen-
sor circuit high inputVehicle speed signal is excessively high com-
pared with the driving condition.

Harness or connectors
(The CAN communication line is open or
shorted.)

Combination meter

ABS actuator and electric unit (control unit)
(models without ESP)

ESP/TCS/ABS control unit (models with ESP)

Wheel sensor

ECM
SEF058YMBIB1085E

DTC P0503 ASCD VEHICLE SPEED SENSOR
EC-1205
[YD (WITH EURO-OBD)]
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Diagnostic ProcedureEBS01FC8
1. CHECK DTC WITH ESP/TCS/ABS CONTROL UNIT (MODELS WITH ESP) OR ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT) (MODELS WITHOUT ESP)
Refer to BRC-60, "
TROUBLE DIAGNOSIS" (models with ESP system) or BRC-12, "TROUBLE DIAGNOSIS"
(models without ESP system).
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK COMBINATION METER
Check combination meter function.
Refer to DI-4, "
COMBINATION METERS" .
>>INSPECTION END

DTC P0504 ASCD BRAKE SWITCH
EC-1207
[YD (WITH EURO-OBD)]
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DTC confirmation ProcedureEBS01FCD
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:
Steps 3 and 4 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 (ESP switch OFF).
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Drive the vehicle for at least 5 consecutive seconds under the
following condition.
If DTC is detected, go to EC-1209, "
Diagnostic Procedure" .
If DTC is not detected, go to the following step.
4. Drive the vehicle for at least 5 consecutive seconds under the
following condition.
5. If DTC is detected, go to EC-1209, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
VHCL SPEED SE More than 5 km/h (3 MPH)
Selector lever Suitable position
VHCL SPEED SE More than 5 km/h (3 MPH)
Selector lever Suitable position
Driving locationDepress the brake pedal for more than
five seconds so as not to come off from
the above-mentioned condition.
MBIB1085E

DTC P1211 TCS CONTROL UNIT
EC-1249
[YD (WITH EURO-OBD)]
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DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS011D0
The malfunction information related to TCS is transferred through the CAN communication line from ESP/
TCS/ABS control unit to ECM.
Be sure to erase the malfunction information such as DTC not only for ESP/TCS/ABS control unit but
also for ECM after TCS related repair.
On Board Diagnosis LogicEBS011D1
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011D2
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.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1249, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSLT-II” above.
Diagnostic ProcedureEBS011D3
Go to BRC-60, "TROUBLE DIAGNOSIS" (models with ESP system) or BRC-12, "TROUBLE DIAGNOSIS"
(model without ESP system).
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1211
1211TCS control unitECM receives a malfunction information from
ESP/TCS/ABS control unit.

ESP/TCS/ABS control unit

TCS related parts
SEF817Y

EC-1250
[YD (WITH EURO-OBD)]
DTC P1212 TCS COMMUNICATION LINE

DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionEBS011D4
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and ESP/TCS/ABS control unit.
NOTE:

If DTC P1212 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000.
Refer to EC-1056, "
DTC U1000 CAN COMMUNICATION LINE" .

Be sure to erase the malfunction information such as DTC not only for ESP/TCS/ABS control unit
but also for ECM after TCS related repair.
On Board Diagnosis LogicEBS011D5
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011D6
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.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1250, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS011D7
Go to BRC-60, "TROUBLE DIAGNOSIS" (models with ESP system) or BRC-12, "TROUBLE DIAGNOSIS"
(model without ESP system).
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212TCS communication lineECM can not receive the information from ESP/
TCS/ABS control unit continuously.

Harness or connectors
(The CAN communication line is
open or shorted.)

ESP/TCS/ABS control unit

Dead (Weak) battery
SEF817Y