2005 NISSAN X-TRAIL 4wd mode

TF-34
TROUBLE DIAGNOSIS

ACTIVE TEST MODE
Description
Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data
monitor. 4WD control unit gives drive signal to actuator with receiving command from CONSULT-II to check
operation of actuator.
Test Item
CAUTION:
Do not continuously energize for a long time.
4WD CONTROL UNIT PART NUMBER
Ignore the 4WD control unit part number displayed in the “ECU PART NUMBER”.
Refer to parts catalog to order the 4WD control unit.
4WD MODE MON [2WD/AUTO/LOCK] – –×Control status of 4WD is displayed.
(Output condition of 4WD LOCK indicator
lamp signal)
DIS-TIRE MONI [mm] – –×Improper size tire installed condition is dis-
played.
P BRAKE SW [ON/OFF] – –×Parking switch signal status via CAN com-
munication line is displayed.
Voltage [V] – –×The value measured by the voltage probe
is displayed.
Frequency [Hz] – –×
The value measured by the pulse probe is
displayed. DUTY-HI (high) [%] – –×
DUTY-LOW (low) [%] – –×
PLS WIDTH-HI [msec] – –×
PLS WIDTH-LOW [msec] – –× Monitor item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Test item Condition Description
ETS S/V
(Detects 4WD solenoid)

Vehicle stopped

Engine running

No DTC detected

Change command current value to 4WD solenoid, and then change driv-
ing mode. (Monitor value is normal if it is within approximately ±10% of
command value.)
Qu: Increase current value in increments of 0.20A
Qd: Decrease current value in increments of 0.20A
UP: Increase current value in increments of 0.02A
DOWN: Decrease current value in increments of 0.02A

TROUBLE DIAGNOSIS FOR SYSTEM
TF-35
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TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Power Supply Circuit for 4WD Control UnitEDS001VM
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between 4WD control unit harness connector ter-
minals and ground.
5. Turn ignition switch “OFF”.
6. Check voltage between 4WD control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.

10A fuse (No. 8, located in the fuse block (J/B) or No. 37, located in the fuse and fusible link
box)

Harness for short or open between battery and 4WD control unit harness connector terminal 9

Harness for short or open between ignition switch and 4WD control unit harness connector ter-
minal 7

Ignition switch. Refer to PG-2, "POWER SUPPLY ROUTING" .
Monitor item [Unit] Condition Display value (Approx.)
BATTERY VOLT [V] Ignition switch: ON Battery voltage
Connector Terminal (Wire color) Voltage (Approx.)
M1077 (GY) - Ground
Battery voltage
9 (P/L) - Ground
SDIA2304E
Connector Terminal (Wire color) Voltage (Approx.)
M1077 (GY) - Ground 0V
9 (P/L) - Ground Battery voltage
SDIA2321E

TF-36
TROUBLE DIAGNOSIS FOR SYSTEM

2. CHECK GROUND CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Check continuity between 4WD control unit harness connector
M107 terminals 10 (B/R), 11 (B/R) and ground.
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 ground or short to power
in harness or connectors.
3. CHECK DTC
Start engine.
Does 4WD warning lamp turn OFF?
YES >>INSPECTION END
NO >> Perform the self-diagnosis, repair or replace damaged parts. Refer to TF-32, "
SELF-DIAG
RESULT MODE" .
4WD Control UnitEDS001VN
DIAGNOSTIC PROCEDURE

Check the following if “CONTROLLER FAILURE [C1201]” is displayed in self-diagnosis results of CON-
SULT-II.
1. PERFORM SELF-DIAGNOSIS
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Perform the self-diagnosis again.
Is the
“CONTROLLER FAILURE [C1201]” displayed?
YES >> Replace 4WD control unit. Refer to TF-54, "4WD CONTROL UNIT" .
NO >>INSPECTION END
ABS SystemEDS001VO
DIAGNOSTIC PROCEDURE

Check the following if “ABS SYSTEM [C1203]” is displayed in self-diagnosis results of CONSULT-II.
1. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) OR ESP/TCS/ABS/
CONTROL UNIT
Perform self-diagnosis with ABS actuator and electric unit (control unit) (without ESP) or ESP/TCS/ABS con-
trol unit (with ESP). Refer to BRC-28, "
SELF-DIAGNOSIS" (without ESP) or BRC-81, "SELF-DIAGNOSIS"
(with ESP).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.Continuity should exist.
SDIA2305E

TROUBLE DIAGNOSIS FOR SYSTEM
TF-37
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2. CHECK DTC AFTER DRIVING
1. Turn ignition switch “OFF”.
2. Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute.
3. Make sure that ABS warning lamp turns OFF.
4. Perform erase self-diagnostic results. Refer to TF-33, "
How to Erase Self-diagnostic Results" .
5. Stop vehicle and turn ignition switch “OFF”.
6. Turn ignition switch “ON”.
7. Perform self-diagnosis.
Is the
“ABS SYSTEM [C1203]” displayed?
YES >> GO TO 3.
NO >>INSPECTION END
3. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 4.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) (without ESP) or ESP/
TCS/ABS control unit (with ESP) again. Refer to BRC-28, "
SELF-DIAGNOSIS" (without ESP) or
BRC-81, "
SELF-DIAGNOSIS" (with ESP).
4WD SolenoidEDS002VH
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
*: The values are changed by throttle opening and engine speed.
DIAGNOSTIC PROCEDURE

Check the following if “4WD SOLENOID [C1204]” is detected in self-diagnosis results of CONSULT-II.
Monitor item [Unit] Condition Display value
ETS SOLENOID [A]Engine speed: At idle2WD mode
Approx. 0.000A AUTO mode
LOCK mode
Engine speed: 3,000 rpm or more constant2WD mode Approx. 0.000A
AUTO mode Approx. 0.000 - 1.500A*
LOCK mode Approx. 2.800A

TF-38
TROUBLE DIAGNOSIS FOR SYSTEM

1. CHECK 4WD SOLENOID SIGNAL
With CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Read out the value of “ETS SOLENOID”.
*: The values are changed by throttle opening and engine speed.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between 4WD control unit harness connector ter-
minal 9 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.

10A fuse (No. 37, located in the fuse and fusible link
box)

Harness for short or open between battery and 4WD control unit harness connector terminal 9
3. CHECK 4WD SOLENOID CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Check resistance between 4WD control unit harness connector
terminals 1 and 2.
OK or NG
OK >> GO TO 6.
NG >> GO TO 4.
Condition Display value
Engine speed: At idle2WD mode
Approx. 0.000A AUTO mode
LOCK mode
Engine speed: 3,000 rpm or
more constant2WD mode Approx. 0.000A
AUTO mode Approx. 0.000 - 1.500A*
LOCK mode Approx. 2.800A
SDIA1885E
Connector Terminal (wire color) Voltage (Approx.)
M107 9 (P/L) - Ground Battery voltage
SDIA2306E
Connector Terminal (wire color) Resistance (Approx.)
M107 1 (OR) - 2 (L/W) (Ground) 2.45 Ω
SDIA2307E

TF-40
TROUBLE DIAGNOSIS FOR SYSTEM

3. Check resistance between 4WD solenoid harness connector
B152 terminals 1 and 2.
4. If NG, replace the electric controlled coupling. Refer to RFD-22,
"Disassembly and Assembly" .
4WD Actuator RelayEDS001VQ
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE

Check the following if “4WD ACTUATOR RLY [C1205]” is displayed in self-diagnosis results of CONSULT-
II.
1. CHECK 4WD SOLENOID SYSTEM
Perform self-diagnosis. Refer to TF-32, "
SELF-DIAG RESULT MODE" .
Is the
“4WD SOLENOID [C1204]” displayed?
YES >> Perform trouble diagnosis for 4WD solenoid. Refer to TF-37, "4WD Solenoid" .
NO >> GO TO 2.
2. CHECK 4WD ACTUATOR RELAY SIGNAL
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Start engine and read out ON/OFF signaling action of “ETS
ACTUATOR”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 4.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts. 1 - 2 : Approx. 2.45Ω
SDIA3278E
Monitor item Condition Display value
ETS ACTUATOR [ON/OFF]Engine stopped (Ignition switch: ON) OFF
Engine running ON
Monitor item Condition Display value
ETS ACTUATOREngine stopped (Ignition switch: ON) OFF
Engine running ON
SDIA1897E

TF-42
TROUBLE DIAGNOSIS FOR SYSTEM

4WD Mode SwitchEDS002VI
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE

Check the following if “MODE SW [C1209]” is detected in self-diagnosis results of CONSULT-II.
1. CHECK 4WD MODE SWITCH SIGNAL
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Read out monitor “4WD MODE SW” with operating 4WD mode
switch.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK 4WD MODE SWITCH CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Operate 4WD mode switch and check continuity between 4WD
control unit harness connector terminals and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
Monitor item Condition Display value
4WD MODE SW [2WD/AUTO/LOCK] 4WD mode switch2WD 2WD
AUTO AUTO
LOCK LOCK
Monitor item Condition Display value
4WD MODE SW 4WD mode switch2WD 2WD
AUTO AUTO
LOCK LOCK
SDIA1898E
Connector Terminal (wire color) Condition Continuity
M1075 (BR/W) - Ground4WD mode switch: AUTO Yes
Except the above No
12 (BR) - Ground4WD mode switch: 2WD Yes
Except the above No
14 (L) - Ground4WD mode switch: LOCK Yes
Except the above No
SDIA1893E

TROUBLE DIAGNOSIS FOR SYSTEM
TF-43
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3. CHECK 4WD MODE SWITCH
1. Turn ignition switch “OFF”.
2. Disconnect 4WD mode switch harness connector.
3. Operate 4WD mode switch and check continuity between 4WD
mode switch harness connector terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace 4WD mode switch.
4. CHECK HARNESS BETWEEN 4WD CONTROL UNIT AND 4WD MODE SWITCH
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector and 4WD mode switch harness connector.
3. Check continuity between the following terminals.
–4WD control unit harness connector M107 terminal 5 (BR/W)
and 4WD mode switch harness connector M39 terminal 2 (BR/
W).
–4WD control unit harness connector M107 terminal 12 (BR) and
4WD mode switch harness connector M39 terminal 7 (BR).
–4WD control unit harness connector M107 terminal 14 (L) and
4WD mode switch harness connector M39 terminal 3 (L).
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 6.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
Connector Terminal Condition Continuity
M392 - 44WD mode switch: AUTO Yes
Except the above No
3 - 44WD mode switch: LOCK Yes
Except the above No
4 - 74WD mode switch: 2WD Yes
Except the above No
SDIA2302E
5 (BR/W) - 2 (BR/W) : Continuity should exist.
12 (BR) - 7 (BR) : Continuity should exist.
14 (L) - 3 (L) : Continuity should exist.
SDIA2303E