2005 NISSAN X-TRAIL display

TROUBLE DIAGNOSIS
TF-31
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*: The values are changed by throttle opening and engine speed.
CONSULT-II Function (ALL MODE AWD/4WD)EDS001VL
FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE

For details, refer to the separate “CONSULT-II Operations Man-
ual”.
1. Turn ignition switch “OFF”.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector on vehicle.
3. Turn ignition switch “ON”.
4. Touch “START (NISSAN BASED VHCL)”.
4WD MODE MON [2WD/AUTO/
LOCK]Control status of 4WD
(Output condition of 4WD indi-
cator lamp and LOCK indica-
tor lamp signal)4WD mode switch
(Engine running)2WD 2WD
AUTO AUTO
LOCK LOCK
DIS-TIRE MONI [mm]Improper size tire installed
conditionVehicle running with normal size tire
installed0-4 mm
Vehicle running with improper size
tire installed (Front/rear tire size dif-
ference, wear condition)4-8 mm, 8- mm
P BRAKE SW [ON/OFF] Condition of parking brakeParking brake operated ON
Parking brake not operated OFF Monitor item [Unit] Content Condition Display value
Diagnostic test mode FunctionReference
page
Self-diagnostic results

Self-diagnostic results can be read and erased quickly.TF-32
Data monitor
Input/Output data in the 4WD control unit can be read.TF-33
CAN diagnostic support monitor
The results of transmit/receive diagnosis of CAN communication can be read. —
Active test

Diagnostic Test Mode in which CONSULT-II drives some actuators apart from
the 4WD control unit and also shifts some parameters in a specified range.TF-34
ECU part number
4WD control unit part number can be read.TF-34
PBIB0376E
BCIA0029E

TF-32
TROUBLE DIAGNOSIS

5. Touch “ALL MODE AWD/4WD”.
If “ALL MODE AWD/4WD” is not indicated, go to GI-35, "
CON-
SULT-II Data Link Connector (DLC) Circuit" .
6. Perform each diagnostic test mode according to each service
procedure.
SELF-DIAG RESULT MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to TF-31, "CONSULT-II SETTING PROCEDURE"
.
2. Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.
3. Stop vehicle. With engine at idle, touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
NOTE:

The details for “TIME” are as follow:
–“0”: Error currently detected with 4WD control unit.
–Except for “0”: Error detected in the past and memorized
with 4WD control unit.
Detects frequency of driving after DTC occurs (frequency
of turning ignition switch “ON/OFF”).
Display Item List
CAUTION:

If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communica-
tion line.

Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h (19 MPH) or more after
turning ignition switch “OFF” if 4WD warning lamp turns ON with system malfunction of “ABS SYSTEM [C1203]”. 4WD
warning lamp may not turn OFF if it is normal unless ignition switch turns OFF at once and engine restarts after that.
BCIA0030E
SDIA2217E
Items (CONSULT-II screen
terms)Diagnostic item is detected when... Check item
CONTROLLER FAILURE
[C1201]Malfunction has occurred inside 4WD control unit.TF-36, "
4WD Control Unit"
ABS SYSTEM
[C1203]Malfunction related to wheel sensor has been detected by ABS actu-
ator and electric unit (control unit) (without ESP) or ESP/TCS/ABS
control unit (with ESP).TF-36, "ABS System"
4WD SOLENOID
[C1204]Malfunction related to 4WD solenoid has been detected.TF-37, "4WD Solenoid"
4WD ACTUATOR RLY
[C1205]Malfunction has been detected from 4WD actuator relay integrated
with 4WD control unit, or malfunction related to 4WD solenoid has
been detected.TF-40, "4WD Actuator
Relay" or TF-37, "4WD
Solenoid"
MODE SW
[C1209]More than two switch inputs are simultaneously detected due to
short circuit of 4WD mode switch.TF-42, "4WD Mode Switch"
ENGINE SIGNAL 1
[C1210]Malfunction has been detected from ECM.TF-44, "Engine Control Sig-
nal"
CAN COMM CIRCUIT
[U1000]Malfunction has been detected from CAN communication line.TF-45, "CAN Communica-
tion Line"
NO DTC IS DETECTED.
FURTHER TESTING MAY BE
REQUIRED.No NG item has been detected. —

TROUBLE DIAGNOSIS
TF-33
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How to Erase Self-diagnostic Results
1. Perform applicably inspection of malfunctioning item and then repair or replace.
2. Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.
3. Make sure that ABS warning lamp turns OFF.
NOTE:
Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h
(19 MPH) or more after turning ignition switch “OFF” if 4WD warning lamp turns ON with system
malfunction of “ABS SYSTEM [C1203]”. 4WD warning lamp may not turn OFF if it is normal unless
ignition switch turns OFF at once and engine restarts after that.
4. Turn ignition switch “OFF” to erase memory.
5. Start engine and select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
6. Touch “ERASE” on CONSULT-II screen to erase DTC memory.
CAUTION:
If memory cannot be erased, perform applicably diagnosis.
7. Drive at 30 km/h (19 MPH) or more for approx. 1 minute. Be sure 4WD warning lamp is OFF.
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to TF-31, "CONSULT-II SETTING PROCEDURE"
.
2. Touch “DATA MONITOR”.
3. Select from “SELECT MONITOR ITEM”, screen of data monitor mode is displayed.
NOTE:
When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
Display Item List
×: Standard –: Not applicable
Monitor item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
FR RH SENSOR [km/h] or [mph]×××Wheel speed calculated by front wheel
sensor RH signal is displayed.
FR LH SENSOR [km/h] or [mph]×××Wheel speed calculated by front wheel
sensor LH signal is displayed.
RR RH SENSOR [km/h] or [mph]×××Wheel speed calculated by rear wheel
sensor RH signal is displayed.
RR LH SENSOR [km/h] or [mph]×××Wheel speed calculated by rear wheel
sensor LH signal is displayed.
BATTERY VOLT [V] – –×Power supply voltage for 4WD control unit.
THRTL POS SEN [%] – –×Throttle opening status is displayed.
ETS SOLENOID [A] – –×Monitored value of current at 4WD sole-
noid.
STOP LAMP SW [ON/OFF] – –×Stop lamp switch signal status via CAN
communication line is displayed.
ENG SPEED SIG [RUN/STOP] – –×Engine status is displayed.
ETS ACTUATOR [ON/OFF] – –×Operating condition of 4WD actuator relay
(integrated in 4WD control unit) is dis-
played.
4WD WARN LAMP [ON/OFF] – –×Control status of 4WD warning lamp is dis-
played.
4WD MODE SW [2WD/AUTO/LOCK] – –×4WD lock switch signal status via CAN
communication line is displayed.

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