Page 1417 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual DTC P1706 PNP SWITCH
EC-1067
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Diagnostic ProcedureEBS00N1I
1.CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Dis NISSAN X-TRAIL 2001 Service Repair Manual DTC P1706 PNP SWITCH
EC-1067
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Diagnostic ProcedureEBS00N1I
1.CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Dis](/manual-img/5/57405/w960_57405-1416.png)
DTC P1706 PNP SWITCH
EC-1067
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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.
Page 1418 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1068
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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 brak NISSAN X-TRAIL 2001 Service Repair Manual EC-1068
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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 brak](/manual-img/5/57405/w960_57405-1417.png)
EC-1068
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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
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DTC P1805 BRAKE SWITCH
EC-1069
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4. Select “DATA MONITOR” mode with CONSULT-II.
5. If 1st trip DTC is detected, go to EC-1071, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
Page 1420 of 3833
EC-1070
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DTC P1805 BRAKE SWITCH
Wiring Diagram
EBS00N1O
TBWA0089E
Page 1421 of 3833
DTC P1805 BRAKE SWITCH
EC-1071
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Diagnostic ProcedureEBS00N1P
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch “OFF”.
2. Check the stop lamp when depressing and releasing the brake pedal.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch harness connector.
2. Check voltage between stop lamp switch terminal 1 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
●15A fuse
●Fuse block (J/B) connector M2
●Harness for open and short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
Brake pedal Stop lamp
Fully released Not illuminated
Depressed Illuminated
PBIB0498E
Voltage: Battery voltage
PBIB0117E
Page 1422 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1072
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DTC P1805 BRAKE SWITCH
4. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM term NISSAN X-TRAIL 2001 Service Repair Manual EC-1072
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DTC P1805 BRAKE SWITCH
4. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM term](/manual-img/5/57405/w960_57405-1421.png)
EC-1072
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DTC P1805 BRAKE SWITCH
4. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 40 and stop lamp switch terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M61, M41
●Joint connector-2 (LHD models)
●Joint connector-3 (RHD models)
●Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK STOP LAMP SWITCH
Refer to EC-1072, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace stop lamp switch.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-847, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS00N1Q
STOP LAMP SWITCH
1. Disconnect stop lamp switch harness connector.Continuity should exist.
PBIB0498E
Page 1423 of 3833
DTC P1805 BRAKE SWITCH
EC-1073
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2. Check continuity between stop lamp switch terminals 1 and 2
under the following conditions.
3. If NG, replace stop lamp switch.
Conditions Continuity
Brake pedal fully released Should not exist.
Brake pedal depressed Should exist.
PBIB0118E
Page 1424 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1074
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IGNITION SIGNAL
IGNITION SIGNAL
PFP:22448
Component DescriptionEBS00N1R
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplifi NISSAN X-TRAIL 2001 Service Repair Manual EC-1074
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IGNITION SIGNAL
IGNITION SIGNAL
PFP:22448
Component DescriptionEBS00N1R
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplifi](/manual-img/5/57405/w960_57405-1423.png)
EC-1074
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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