2001 NISSAN X-TRAIL turn signal

DTC P1212 ESP/TCS/ABS COMMUNICATION LINE
EC-1049
[QR20(WITH EURO-OBD)]
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DTC P1212 ESP/TCS/ABS COMMUNICATION LINEPFP:47850
DescriptionEBS00N0Y
NOTE:
If DTC P1212 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
EC-854
.
This CAN communication line is used to control the smooth engine operation during ESP/TCS/ABS operation.
Pulse signals are exchanged between ECM and ESP/ABS/TCS control unit.
Be sure to erase the malfunction information such as DTC not only in ESP/TCS/ABS control unit but
also ECM after the ESP/TCS/ABS related repair.
On Board Diagnosis LogicEBS00N0Z
The MI will not light up for this diagnosis.
Freeze frame data is not stored in the ECM for this self-diagnosis.
DTC Confirmation ProcedureEBS00N10
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V at idle.
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 10 seconds.
4. If a 1st trip DTC is detected, go to EC-1049, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS00N11
1.CHECK ESP/TCS/ABS CONTROL UNIT FUNCTION
Refer to BRC-64, "
TROUBLE DIAGNOSIS" .
>>INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212ESP/TCS/ABS commu-
nication lineECM can not receive the information from
ESP/TCS/ABS control unit continuously.
●Harness or connectors
(The CAN communication line between
ECM and ESP/TCS/ABS control unit is
open or shorted.)
●ESP/TCS/ABS control unit
●Dead (Weak) battery
SEF058Y

EC-1064
[QR20(WITH EURO-OBD)]
DTC P1706 PNP SWITCH
DTC P1706 PNP SWITCH
PFP:32006
Component DescriptionEBS00N1B
When the gear position is “P” (A/T models only) or “N”, park/neutral position (PNP) switch is “ON”.
ECM detects the position because the continuity of the line (the “ON” signal) exists.
CONSULT-II Reference Value in Data Monitor ModeEBS00N1C
Specification data are reference values.
ECM Terminals and Reference ValueEBS00N1D
Specification data are reference values and are measured between each terminal and 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 LogicEBS00N1E
DTC Confirmation ProcedureEBS00N1F
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.
WITH CONSULT-II
1. Turn ignition switch “ON”.
MONITOR ITEM CONDITION SPECIFICATION
P/N POSI SW
●Ignition switch: ONShift lever:
P or N (A/T model)
Neutral (M/T model)ON
Shift lever: Except above OFF
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
43 G/OR PNP switch[Ignition switch “ON”]
●Gear position is “P” or “N”.Approximately 0V
[Ignition switch “ON”]
●Except the above gear positionA/T model
BATTERY VOLTAGE
(11 - 14v)
M/T model
Approximately 5V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1706
1706Park/neutral position
switchThe signal of the park/neutral position (PNP)
switch is not changed in the process of engine
starting and driving.
●Harness or connectors
[The park/neutral position (PNP) switch
circuit is open or shorted.]
●Park/neutral position (PNP) switch

DTC P1706 PNP SWITCH
EC-1065
[QR20(WITH EURO-OBD)]
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2. Select “P/N POSI SW” in “DATA MONITOR” mode with CON-
SULT-II. Then check the “P/N POSI SW” signal under the follow-
ing conditions.
If NG, go to EC-1067, "
Diagnostic Procedure" .
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-II.
4. Start engine and warm it up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive sec-
onds.
6. If 1st trip DTC is detected, go to EC-1067, "
Diagnostic Proce-
dure" .
Overall Function CheckEBS00N1G
Use this procedure to check the overall function of the park/neutral position (PNP) switch circuit. During this
check, a 1st trip DTC might not be confirmed.
WITH GST
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 43 (PNP switch signal)
and body ground under the following conditions.
3. If NG, go to EC-1067, "
Diagnostic Procedure" .
Position (Selector lever) Known-good signal
“N” and “P” position ON
Except the above position OFF
ENG SPEED 1,500 - 3,000 rpm
COOLAN TEMP/S More than 70°C (158°F)
B/FUEL SCHDL 3.0 - 31.8 msec
VHCL SPEED SE More than 64 km/h (40 MPH)
Selector lever Suitable position
SEF212Y
SEF213Y
Condition (Gear position) Voltage V (Known good data)
“P” (A/T models only) and “N” position Approx. 0
Except the above positionA/T models: Battery voltage
M/T: Approximately 5V
PBIB0578E

DTC P1706 PNP SWITCH
EC-1067
[QR20(WITH EURO-OBD)]
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Diagnostic ProcedureEBS00N1I
1.CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect PNP switch harness connector.
3. Check harness continuity between PNP switch terminal 2 and body ground.
Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to power in harness or connectors.
2.CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 43 and PNP switch terminal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or connectors.
3.CHECK PNP SWITCH
Refer to AT- 11 5 , "
PARK/NEUTRAL POSITION SWITCH" (A/T models) or MT-12, "PARK/NEUTRAL POSI-
TION SWITCH" (M/T models).
OK or NG
OK >> GO TO 4.
NG >> Replace PNP switch.
4.CHECK INTERMITTENT INCIDENT
Refer to EC-847, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Continuity should exist.

EC-1068
[QR20(WITH EURO-OBD)]
DTC P1805 BRAKE SWITCH
DTC P1805 BRAKE SWITCH
PFP:25320
DescriptionEBS00N1J
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
CONSULT-II Reference Value in Data Monitor ModeEBS00N1K
Specification data are reference values.
ECM Terminals and Reference ValueEBS00N1L
Specification data are reference values and are measured between each terminal and 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 LogicEBS00N1M
The MI will not light up for this diagnosis.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters in fail-safe mode.
DTC Confirmation ProcedureEBS00N1N
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-II.
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW
●Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
40 P Stop lamp switch[Engine is running]
●Brake pedal freleasedApproximately 0V
[Engine is running]
●Brake pedal depressedBATTERY VOLTAGE
(11 - 14V)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805
1805Brake switchA brake switch signal is not sent to ECM for an
extremely long time while the vehicle is driving.
●Harness or connectors
(Stop lamp switch circuit is open or
shorted.)
●Stop lamp switch
Engine operation condition in fail-fail safe mode
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range.Therefore,acceleration will be
poor.
Driving condition
When engine is idlingNormal
When acceleratingPoor acceleration

EC-1074
[QR20(WITH EURO-OBD)]
IGNITION SIGNAL
IGNITION SIGNAL
PFP:22448
Component DescriptionEBS00N1R
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplified by the
power transistor. The power transistor turns on and off the ignition
coil primary circuit. This on-off operation induces the proper high
voltage in the coil secondary circuit.
ECM Terminals and Reference ValueEBS00N1S
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.)
PBIB0509E
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
21
22
23
24BR
PU
L/R
GY/RIgnition signal No. 1
Ignition signal No. 2
Ignition signal No. 3
Ignition signal No. 4[Engine is running]
●Warm-up condition
●Idle speed0 - 0.1V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm.0 - 0.2V
PBIB0521E
PBIB0522E

IGNITION SIGNAL
EC-1077
[QR20(WITH EURO-OBD)]
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Diagnostic ProcedureEBS00N1U
1.CHECK ENGINE START
Turn ignition switch “OFF”, and restart engine.
Is engine running?
Ye s o r N o
Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No >> GO TO 4.
2.CHECK OVERALL FUNCTION
With CONSULT-II
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.
2. Make sure that all circuits do not produce a momentary engine
speed drop.
OK or NG
OK >>INSPECTION END
NG >> GO TO 12.
3.CHECK OVERALL FUNCTION
Without CONSULT-II
1. Let engine idle.
2. Read the voltage signal between ECM terminals 21, 22, 23, 24
and ground with an oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as
shown below.
OK or NG
OK >>INSPECTION END
NG >> GO TO 12.
PBIB0133E
PBIB0579EPBIB0521E

EC-1078
[QR20(WITH EURO-OBD)]
IGNITION SIGNAL
4. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check voltage between ECM terminals 109, 111 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> Go to EC-848, "
POWER SUPPLY CIRCUIT FOR ECM"
.
5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
Check voltage between ECM terminal 12 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 6.
6. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect ECM relay.
4. Check harness continuity between ECM terminal 12 and ECM
relay terminal 7. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
7. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.Voltage: Battery voltage
PBIB0580E
Voltage: Battery voltage
PBIB0136E
Continuity should exist.
PBIB0493E
Voltage: Battery voltage
PBIB0581E