2005 NISSAN X-TRAIL check

EC-806
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DTC P1706 PNP SWITCH

4. CHECK PNP SWITCH
Refer to AT- 4 0 8 , "
Park/Neutral Position (PNP) Switch" (A/T) or MT-15, "PARK/NEUTRAL POSITION
SWITCH" (M/T).
OK or NG
OK >> GO TO 5.
NG >> Replace PNP switch.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-624, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END

EC-808
[QR (WITHOUT EURO-OBD)]
DTC P1720 VSS

5. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
6. If 1st trip DTC is detected, go to EC-808, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS018OL
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT- 6 , "
TROUBLE DIAGNOSIS — INDEX" .
OK or NG
OK >> GO TO 2.
NG >> Perform trouble shooting relevant to DTC indicated.
2. CHECK DTC WITH ESP/TCS/ABS CONTROL UNIT (MODELS WITH ESP), “ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT)” (MODELS WITHOUT ESP)
Check DTC with ESP/TCS/ABS control unit (models with ESP), “ABS actuator and electric unit (control unit)”
(models without ESP). Refer to BRC-60, "
TROUBLE DIAGNOSIS" (models with ESP), BRC-12, "TROUBLE
DIAGNOSIS" (models without ESP).
OK or NG
OK >> GO TO 3.
NG >> Perform trouble shooting relevant to DTC indicated.
3. CHECK COMBINATION METER
Check combination meter function. Refer to DI-4, "
COMBINATION METERS" .
>>INSPECTION END

EC-812
[QR (WITHOUT EURO-OBD)]
DTC P1805 BRAKE SWITCH

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.
Diagnostic ProcedureEBS01126
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.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
101 P Stop lamp switch[Ignition switch: OFF]

Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]

Brake pedal: Slightly fully depressedBATTERY VOLTAGE
(11 - 14V)
Brake pedal Stop lamp
Fully released Not illuminated
Slightly depressed Illuminated
PBIB0498E
Voltage: Battery voltage
PBIB2284E

DTC P1805 BRAKE SWITCH
EC-813
[QR (WITHOUT EURO-OBD)]
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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.
4. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between stop lamp switch terminal 2 and ECM terminal 101.
Refer to Wiring Diagram.
3. 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 STOP LAMP SWITCH
Refer to EC-813, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace stop lamp switch.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-624, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS01FFF
STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.Continuity should exist.
PBIB0498E

EC-814
[QR (WITHOUT EURO-OBD)]
DTC P1805 BRAKE SWITCH

3. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
If NG, adjust stop lamp switch installation, refer to BR-6, "
BRAKE PEDAL" , and perform step 3 again.
Condition Continuity
Brake pedal: Fully released Should not exist
Brake pedal: Slightly depressed Should exist
PBIB2285E

DTC P2122, P2123 APP SENSOR
EC-819
[QR (WITHOUT EURO-OBD)]
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Diagnostic ProcedureEBS0112D
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-632, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
PBIB2021E

EC-820
[QR (WITHOUT EURO-OBD)]
DTC P2122, P2123 APP SENSOR

2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminal 6 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between APP sensor terminal 3 and ECM terminal 82.
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 APP SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between APP sensor terminal 5 and ECM terminal 106.
Refer to Wiring Diagram.
2. 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 APP SENSOR
Refer to EC-821, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
PBIB0498E
Voltage: Approximately 5V
PBIB0914E
Continuity should exist.
Continuity should exist.

DTC P2122, P2123 APP SENSOR
EC-821
[QR (WITHOUT EURO-OBD)]
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6. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace the accelerator pedal assembly.
2. Perform EC-559, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-560, "
Throttle Valve Closed Position Learning" .
4. Perform EC-560, "
Idle Air Volume Learning" .
>>INSPECTION END
7. CHECK INTERMITTENT INCIDENT
Refer to EC-624, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS0112E
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 sig-
nal), 98 (APP sensor 2 signal) and ground under the following
conditions.
4. If NG, replace accelerator pedal assembly and go to the next
step.
5. Perform EC-559, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-560, "
Throttle Valve Closed Position Learning" .
7. Perform EC-560, "
Idle Air Volume Learning" .
Removal and InstallationEBS0112F
ACCELERATOR PEDAL
Refer to ACC-2, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
106
(Accelerator pedal position
sensor 1)Fully released 0.5 - 1.0V
Fully depressed 3.9 - 4.7V
98
(Accelerator pedal position
sensor 2)Fully released 0.15 - 0.6V
Fully depressed 1.95 - 2.4V
MBIB0023E