2001 NISSAN X-TRAIL Service Repair Manual

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Page 697 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1706 PNP SWITCH
EC-347
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EC
Wiring DiagramEBS00M9S
TBWA0072E

Page 698 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-348
[QR25(WITH EURO-OBD)]
DTC P1706 PNP SWITCH
Diagnostic Procedure
EBS00M9T
1. CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect PNP switch harnes

Page 699 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1805 BRAKE SWITCH
EC-349
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DTC P1805 BRAKE SWITCHPFP:25320
DescriptionEBS00M9U
Brake switch signal is applied to the ECM through the stop l

DTC P1805 BRAKE SWITCH
EC-349
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DTC P1805 BRAKE SWITCHPFP:25320
DescriptionEBS00M9U
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 ModeEBS00M9V
Specification data are reference values.
ECM Terminals and Reference ValueEBS00M9W
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 LogicEBS00M9X
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 ProcedureEBS00M9Y
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 releasedApproximately 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.
Vehicle condition Driving condition
When engine is idlingNormal
When acceleratingPoor acceleration

Page 700 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-350
[QR25(WITH EURO-OBD)]
DTC P1805 BRAKE SWITCH
4. Select “DATA MONITOR” mode with CONSULT-II.
5. If 1st trip DTC is detected, go to EC-352, "
Diagnostic Procedure"
.
WITH GST
Follow

Page 701 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1805 BRAKE SWITCH
EC-351
[QR25(WITH EURO-OBD)]
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EC
Wiring DiagramEBS00M9Z
TBWA0332E

Page 702 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-352
[QR25(WITH EURO-OBD)]
DTC P1805 BRAKE SWITCH
Diagnostic Procedure
EBS00MA0
1. CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch “OFF”.
2. Check the stop lamp when depressing and releas

Page 703 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1805 BRAKE SWITCH
EC-353
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4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness con

Page 704 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-354
[QR25(WITH EURO-OBD)]
DTC P1805 BRAKE SWITCH
2. Check continuity between stop lamp switch terminals 1 and 2
under the following conditions.
3. If NG, replace stop lamp switch.
Conditio

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