Juke F15 (2012 year). Service Repair Manual — part 102

SYSTEM

DLN-21

< SYSTEM DESCRIPTION >

[TRANSFER: TY21B]

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4WD SYSTEM : Protection Function

INFOID:0000000006570278

4WD system activates its protection function (shuts down 4WD system temporarily) if 4WD system detects
high load continuously, the front wheel tire size differs from the rear tire size or the rear RH wheel tire size dif-
fers from the rear LH tire size. (4WD system is automatically restored if 4WD system no longer detects any
overload or the tire size difference is eliminated.)

*1: 2 times/second (blinking for approximately 1 minute and then turned OFF)
*2: 1 time/2 seconds (continuing to blink until ignition switch is turned OFF)
NOTE:
• If the warning lamp blinks slowly during driving but remains OFF after the engine is restarted, the system is

normal. If it again blinks slowly after driving for some time, vehicle must be inspected.

• When there is a difference of revolution speed between the front and rear wheel the shift occasionally

changes to direct 4-wheel driving conditions automatically. This is not a malfunction.

P183C

• ABS actuator and electric unit (control unit)
• Yaw rate/side/decel G sensor
• 4WD control module
• CAN communication line

OFF

Right and left rear wheels difference
control stops.

P183D

• ABS actuator and electric unit (control unit)
• Yaw rate/side/decel G sensor
• 4WD control module
• CAN communication line

P183E

• ABS actuator and electric unit (control unit)
• Yaw rate/side/decel G sensor
• 4WD control module
• CAN communication line

P183F

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

P1840

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

P1864

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

P1865

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

U1000

CAN communication error

ON

Front and rear distribution control
stops.

U1010

Internal malfunction of 4WD control module

Detected

DTC

Possible cause

4WD warning

lamp status

Vehicle condition

Detected

DTC

Warning lamp

Possible cause

Vehicle condition

—

Quick blinking

*1

Turning difference remains between front and rear wheels or between
right and left rear wheels, resulting in an oil temperature rise in drive train
related parts.
NOTE:
It is not malfunction.

Shuts down 4WD system

temporarily

—

Slow blinking

*2

Malfunction in each tire or different tire diameter

DLN-22

< SYSTEM DESCRIPTION >

[TRANSFER: TY21B]

DIAGNOSIS SYSTEM (4WD CONTROL MODULE)

DIAGNOSIS SYSTEM (4WD CONTROL MODULE)

CONSULT-III Function

INFOID:0000000006359899

APPLICATION ITEMS

CONSULT-III can display each diagnostic item using the diagnostic test modes as follows.

*: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)

ECU IDENTIFICATION

4WD control module part number can be read.

SELF DIAGNOSTIC RESULT

Refer to

DLN-33, "DTC Index"

.

When “PRSNT” is displayed on self-diagnosis result.

• The system is presently malfunctioning.

When “PAST” is displayed on self-diagnosis result.

• System malfunction in the past is detected, but the system is presently normal.

FREEZE FRAME DATA (FFD)

The following vehicle status is recorded when DTC is detected and is displayed on CONSULT-III.

Diagnostic test mode

Function

ECU Identification

4WD control module part number can be read.

Self Diagnostic Result

Self-diagnostic results and freeze frame data can be read and erased quickly.*

Data Monitor

Input/Output data in the 4WD control module can be read.

Active Test

Diagnostic Test Mode in which CONSULT-III drives some actuators apart from the 4WD control
module and also shifts some parameters in a specified range.

Work support

This mode enable a technican to adjust some devices faster and more accurately by following the
indication on the CONSULT-III.

Freeze Frame Data Item

Description

SOLENOID VOLT

Power supply voltage of 4WD solenoid is displayed when DTC is detected.

TRGT SOL CRNT LH

4WD solenoid (LH) target current is displayed when DTC is detected.

SOLENOID CRNT LH

4WD solenoid (LH) control current is displayed when DTC is detected.

TRGT SOL CRNT RH

4WD solenoid (RH) target current is displayed when DTC is detected.

SOLENOID CRNT RH

4WD solenoid (RH) control current is displayed when DTC is detected.

COMPR VHCL SPEED

Vehicle speed calculated by 4WD control module is displayed when DTC is detected.

VHCL/S SEN-FR

Vehicle speed (front) average calculated by 4WD control module is displayed when DTC is detected.

VHCL/S SEN-RR

Vehicle speed (rear) average calculated by 4WD control module is displayed when DTC is detected.

WHEEL SPD SEN FR

Wheel speed (front RH) calculated by 4WD control module is displayed when DTC is detected.

WHEEL SPD SEN FL

Wheel speed (front LH) calculated by 4WD control module is displayed when DTC is detected.

WHEEL SPD SEN RR

Wheel speed (rear RH) calculated by 4WD control module is displayed when DTC is detected.

WHEEL SPD SEN RL

Wheel speed (rear RH) calculated by 4WD control module is displayed when DTC is detected.

ABS OPERATION SIG

ABS operation status via CAN communication line is displayed when DTC is detected.

VDC OPERATION SIG

VDC operation status via CAN communication line is displayed when DTC is detected.

TCS OPERATION SIG

TCS operation status via CAN communication line is displayed when DTC is detected.

HIGH M FLG 1 [0/1]

Measured friction of load is displayed when vehicle starts.
• When “0” is displayed: It indicates that friction of load is not high.
• When “1” is displayed: It indicates that friction of load is high.

DIAGNOSIS SYSTEM (4WD CONTROL MODULE)

DLN-23

< SYSTEM DESCRIPTION >

[TRANSFER: TY21B]

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DATA MONITOR

X: Applicable

HIGH M FLG 2 [0/1]

Measured friction of load is displayed when vehicle throttles down.
• When “0” is displayed: It indicates that friction of load is not high.
• When “1” is displayed: It indicates that friction of load is high.

SLCT LVR POSI

Current transmission gear via CAN communication line is displayed when DTC is detected.

OPERATION MODE

Control status of 4WD mode is displayed when DTC is detected.

IGN COUNTER [0 - 39]

The number of times that ignition switch is turned ON after the DTC is detected is displayed.
• When “0” is displayed: It indicates that the system is presently malfunctioning.
• When except “0” is displayed: It indicates that system malfunction in the past is detected, but the

system is presently normal.
NOTE:
Each time when ignition switch is turned OFF to ON, numerical number increases in
1

→

2

→

3...38

→

39.

When the operation number of times exceeds 39, the number do not increase and “39” is displayed
until self-diagnosis is erased.

Freeze Frame Data Item

Description

Monitor item [Unit]

SELECT MONITOR ITEM

Remarks

ECU INPUT

SIGNALS

MAIN SIG-

NALS

SWITCH 1 [On/Off]

X

4WD mode switch status (2WD) is displayed.

SWITCH 2 [On/Off]

X

4WD mode switch status (4WD-V or 4WD) is displayed.

SWITCH 3 [On/Off]

X

4WD mode switch status (4WD) is displayed.

IGN SW [On/Off]

X

Ignition switch status is displayed.

WARNING LAMP [On/Off]

X

Control status of 4WD warning lamp is displayed.

R POSITION SW [On/Off]

X

X

CVT shift selector is displayed.

ABS OPERATION SIG [On/Off]

ABS operation status via CAN communication line is dis-
played.

VDC OPERATION SIG [On/Off]

VDC operation status via CAN communication line is dis-
played.

TCS OPERATION SIG [On/Off]

TCS operation status via CAN communication line is dis-
played.

PKB SW [On/Off]

X

Parking brake switch signal status via CAN communica-
tion line is displayed.

STOP LAMP SW [On/Off]

X

Stop lamp switch signal status via CAN communication
line is displayed.

4WD MODE SW [2WD/4WD-A]

X

4WD mode switch status is displayed.

ACTUATOR RELAY [On/Off]

4WD actuator relay (integrated in 4WD control module)
operation status is displayed.

OPERATION MODE [2WD/4WD-V/
4WD-A]

X

Control status of 4WD mode is displayed.

INDICATOR [2WD/4WD-V/4WD-A]

X

Control status of 4WD mode indicator lamp is displayed.

DRIVE MODE [1/2]

X

Snow mode (4WD mode) status is displayed.

TORQU DISTR RR LH [1/1-2/1-3/1-4/
OFF]

Control status of torque distribution indicator (rear LH) is
displayed.

TORQU DISTR RR RH [1/1-2/1-3/1-4/
OFF]

Control status of torque distribution indicator (rear RH) is
displayed.

TORQU IND FRONT [1/1-2/1-3/1-4/
OFF]

Control status of torque distribution indicator (front) is dis-
played.

TEMP SEN LEFT [V]

X

Voltage of electric controlled coupling temperature sen-
sor (LH) is displayed.

TEMP SEN RIGHT [V]

X

Voltage of electric controlled coupling temperature sen-
sor (RH) is displayed.

DLN-24

< SYSTEM DESCRIPTION >

[TRANSFER: TY21B]

DIAGNOSIS SYSTEM (4WD CONTROL MODULE)

ACTIVE TEST

Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data
monitor. 4WD control module gives drive signal to actuator with receiving command from CONSULT-III to
check operation of actuator.

CAUTION:

Never energize continuously for a long time.

CONT MODUL VOLT [V]

X

Power supply voltage of 4WD control module is dis-
played.

SOLENOID VOLT [V]

X

Power supply voltage of 4WD solenoid is displayed.

TRGT SOL CRNT LH [A]

X

4WD solenoid (LH) target current is displayed.

SOLENOID CRNT LH [A]

X

4WD solenoid (LH) control current is displayed.

TRGT SOL CRNT RH [A]

X

4WD solenoid (RH) target current is displayed.

SOLENOID CRNT RH [A]

X

4WD solenoid (RH) control current is displayed.

COMPR VHCL SPEED [km/h]

X

Vehicle speed calculated by 4WD control module is dis-
played.

VHCL/S SEN-FR [km/h]

Vehicle speed (front) average calculated by 4WD control
module is displayed.

VHCL/S SEN-RR [km/h]

Vehicle speed (rear) average calculated by 4WD control
module is displayed.

THRTL POS SEN [%]

Throttle operation status via CAN communication line is
displayed.

SLCT LVR POSI [2ND / 3RD / 4TH / 5TH
/ 6TH / 7TH / 8TH / R / N/P / D]

X

Current transmission gear via CAN communication line is
displayed.

TRGT DRIVE TORQU [Nm]

Request drive torque from 4WD control module to ECM
is displayed.

RQST DRIVE TORQU [Nm]

Request drive torque from ABS actuator and electric unit
(control unit) to 4WD control module is displayed.

WHEEL SPD SEN FR [km/h]

Wheel speed (front RH) calculated by 4WD control mod-
ule is displayed.

WHEEL SPD SEN FL [km/h]

Wheel speed (front LH) calculated by 4WD control mod-
ule is displayed.

WHEEL SPD SEN RR [km/h]

Wheel speed (rear RH) calculated by 4WD control mod-
ule is displayed.

WHEEL SPD SEN RL [km/h]

Wheel speed (rear RH) calculated by 4WD control mod-
ule is displayed.

Monitor item [Unit]

SELECT MONITOR ITEM

Remarks

ECU INPUT

SIGNALS

MAIN SIG-

NALS

Test item

Condition

Description

4WDSOL_L

• Vehicle stopped
• Engine running
• No DTC detected

Change command current value to 4WD solenoid (LH), and then change driv-
ing mode. (Monitor value is normal if it is within approx.

±

10% of command

value.)
• Qu: Increase current value in increments of 0.2 A
• Qd: Decrease current value in increments of 0.2 A
• UP: Increase current value in increments of 0.02 A
• DOWN: Decrease current value in increments of 0.02 A

4WDSOL_R

• Vehicle stopped
• Engine running
• No DTC detected

Change command current value to 4WD solenoid (RH), and then change
driving mode. (Monitor value is normal if it is within approx.

±

10% of command

value.)
• Qu: Increase current value in increments of 0.2 A
• Qd: Decrease current value in increments of 0.2 A
• UP: Increase current value in increments of 0.02 A
• DOWN: Decrease current value in increments of 0.02 A

DIAGNOSIS SYSTEM (4WD CONTROL MODULE)

DLN-25

< SYSTEM DESCRIPTION >

[TRANSFER: TY21B]

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WORK SUPPORT

Function

Description

UNIT CHARACTERISTICS DATA

Display the unit parameter of electric controlled coupling written to 4WD control module.

UNIT CHARACTERISTICS WRITE

Writes the unit parameter of electric controlled coupling to 4WD control module.

DLN-26

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

4WD CONTROL MODULE

ECU DIAGNOSIS INFORMATION

4WD CONTROL MODULE

Reference Value

INFOID:0000000006359900

VALUES ON THE DIAGNOSIS TOOL

Monitor item

Condition

Value/Status

SWITCH 1

4WD mode switch: 2WD

On

4WD mode switch: 4WD-V or 4WD

Off

SWITCH 2

4WD mode switch: 4WD-V or 4WD

On

4WD mode switch: 2WD

Off

SWITCH 3

4WD mode switch: 4WD

On

4WD mode switch: 2WD or 4WD-V

Off

IGN SW

Ignition SW: ON

On

Ignition SW: OFF

Off

WARNING LAMP

4WD warning lamp: ON

On

4WD warning lamp: OFF

Off

R POSITION SW

CVT shift selector: R

On

CVT shift selector: Except R

Off

ABS OPERATION SIG

ABS is operating

On

ABS is not operating

Off

VDC OPERATION SIG

VDC is operating

On

VDC is not operating

Off

TCS OPERATION SIG

TCS is operating

On

TCS is not operating

Off

PKB SW

Parking brake is operated

On

Parking brake is not operated

Off

STOP LAMP SW

Brake pedal is depressed

On

Brake pedal is released

Off

4WD MODE SW

4WD mode switch: 2WD

2WD

4WD mode switch: 4WD-V or 4WD

4WD-A

ACTUATOR RELAY

Engine stopped (Ignition switch: ON)

Off

Engine running

On

OPERATION MODE

4WD mode: 2WD

2WD

4WD mode: 4WD-V

4WD-V

4WD mode: 4WD

4WD-A

INDICATOR

4WD mode indicator (4WD-V): OFF
4WD mode indicator (4WD): OFF

2WD

4WD mode indicator (4WD-V): ON
4WD mode indicator (4WD): OFF

4WD-V

4WD mode indicator (4WD-V): ON
4WD mode indicator (4WD): ON

4WD-A

DRIVE MODE

4WD mode: Except 4WD

1

4WD mode: 4WD

2

4WD CONTROL MODULE

DLN-27

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

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TORQU DISTR RR LH

The number of bars of torque distribution indicator (rear LH): 0

OFF

The number of bars of torque distribution indicator (rear LH): 1

1

The number of bars of torque distribution indicator (rear LH): 2

1-2

The number of bars of torque distribution indicator (rear LH): 3

1-3

The number of bars of torque distribution indicator (rear LH): 4

1-4

TORQU DISTR RR RH

The number of bars of torque distribution indicator (rear RH): 0

OFF

The number of bars of torque distribution indicator (rear RH): 1

1

The number of bars of torque distribution indicator (rear RH): 2

1-2

The number of bars of torque distribution indicator (rear RH): 3

1-3

The number of bars of torque distribution indicator (rear RH): 4

1-4

TORQU IND FRONT

The number of bars of torque distribution indicator (front): 0

OFF

The number of bars of torque distribution indicator (front): 1

1

The number of bars of torque distribution indicator (front): 2

1-2

The number of bars of torque distribution indicator (front): 3

1-3

The number of bars of torque distribution indicator (front): 4

1-4

TEMP SEN LEFT

Temperature of electric controlled coupling (LH) is 10

°

C

Aprrox. 3.5 V

Temperature of electric controlled coupling (LH) is 20

°

C

Aprrox. 3.2 V

Temperature of electric controlled coupling (LH) is 30

°

C

Aprrox. 2.8 V

TEMP SEN RIGHT

Temperature of electric controlled coupling (RH) is 10

°

C

Aprrox. 3.5 V

Temperature of electric controlled coupling (RH) is 20

°

C

Aprrox. 3.2 V

Temperature of electric controlled coupling (RH) is 30

°

C

Aprrox. 2.8 V

CONT MODUL VOLT

Always

Battery Voltage

SOLENOID VOLT

Always

Battery Voltage

TRGT SOL CRNT LH

Vehicle stopped

0.00 A

Vehicle starting
(Straight-ahead start on a dry road with accelerator angle 2/8)

Approx. 1.00 A

SOLENOID CRNT LH

Vehicle stopped

0.00 A

Vehicle starting
(Straight-ahead start on a dry road with accelerator angle 2/8)

Approx. 1.00 A

TRGT SOL CRNT RH

Vehicle stopped

0.00 A

Vehicle starting
(Straight-ahead start on a dry road with accelerator angle 2/8)

Approx. 1.00 A

SOLENOID CRNT RH

Vehicle stopped

0.00 A

Vehicle starting
(Straight-ahead start on a dry road with accelerator angle 2/8)

Approx. 1.00 A

COMPR VHCL SPEED

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

VHCL/S SEN-FR

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

VHCL/S SEN-RR

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

Monitor item

Condition

Value/Status

DLN-28

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

4WD CONTROL MODULE

TERMINAL LAYOUT

PHYSICAL VALUES

THRTL POS SEN

When depressing accelerator pedal
(Value rises gradually in response to throttle position)

0 - 100 %

SLCT LVR POSI

Engine running

CVT shift selector: Manual
mode

1ST

2ND
3RD

4TH
5TH
6TH
7TH
8TH

CVT shift selector: R

REVERSE

CVT shift selector: N or P

N/P

CVT shift selector: D

D

TRGT DRIVE TORQU

Request from 4WD control module to ECM.

0 - 507 Nm

No request from 4WD control module to ECM.

508 Nm

RQST DRIVE TORQU

Request from ABS actuator and electric unit (control unit) to 4WD
control module.

0 - 1274 Nm

No request from ABS actuator and electric unit (control unit) to
4WD control module.

1275 Nm

WHEEL SPD SEN FR

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

WHEEL SPD SEN FL

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

WHEEL SPD SEN RR

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

WHEEL SPD SEN RL

Vehicle stopped

0.00 km/h (0.00mph)

Vehicle driving

CAUTION:

Check air pressure of tire under standard condition.

Approx. equal to the indication on

speedometer (inside of

±

10 %)

Monitor item

Condition

Value/Status

JSDIA2078ZZ

4WD CONTROL MODULE

DLN-29

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

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Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

+

-

Signal name

Input/

Output

1

(GR)

Ground

Power supply (4WD control
module)

Input

Always

11 - 13 V

3

(LG)

Ground

Ignition switch

Input

Ignition switch: ON

11 - 13 V

Ignition switch: OFF

0 V

4

(L)

—

CAN-H

Input/

Output

—

—

5

(P)

—

CAN-L

Input/

Output

—

—

6

(SB)

Ground

Electric controlled coupling
(RH) temperature sensor
power supply.

Output

Ignition switch: ON

5 V

Ignition switch: OFF

0 V

7

(P)

Ground

Electric controlled coupling
(RH) temperature sensor
signal.

Input

Rear final drive as-
sembly temperature
is the same as room
temperature.

Electric controlled coupling (RH)
temperature: 10

°

C (50

°

F)

3.5 V

Electric controlled coupling (RH)
temperature: 20

°

C (68

°

F)

3.2 V

Electric controlled coupling (RH)
temperature: 30

°

C (86

°

F)

2.8 V

9

(W)

Ground

4WD mode SW (4WD-V)

Input

IGN ON

4WD mode switch: 2WD

4.5 - 5 V

4WD mode switch: 4WD-V or
4WD

0 V

10

(B)

Ground

Ground

—

Always

0 V

11

(B)

Ground

Ground

—

Always

0 V

12

(Y)

Ground

Power supply (4WD sole-
noid)

Input

Always

11 - 13 V

13

(G)

Ground

4WD mode SW (2WD)

Input

IGN ON

4WD mode switch: 2WD

0 V

4WD mode switch: 4WD-V or
4WD

4.5 - 5 V

16

(G)

Ground

Electric controlled coupling
(LH) temperature sensor
signal.

Input

Rear final drive as-
sembly temperature
is the same as room
temperature.

Electric controlled coupling (LH)
temperature: 10

°

C (50

°

F)

3.5 V

Electric controlled coupling (LH)
temperature: 20

°

C (68

°

F)

3.2 V

Electric controlled coupling (LH)
temperature: 30

°

C (86

°

F)

2.8 V

17

(L)

Ground

Electric controlled coupling
(LH) temperature sensor
power supply.

Output

Ignition switch: ON

5 V

Ignition switch: OFF

0 V

21

(Y)

Ground

4WD mode SW (4WD-V)

Input

IGN ON

4WD mode switch: 2WD or
4WD-V

4.5 - 5 V

4WD mode switch: 4WD

0 V

23

(R)

Ground

4WD solenoid (LH) power
supply

Output

Engine speed: At idle

0 V

Engine speed: 3,000 or more constant

2.5 V

*

24

(V)

Ground

4WD solenoid (LH) ground

Input

Always

1.5 V or less

DLN-30

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

4WD CONTROL MODULE

*: The values are changed by throttle opening and engine speed.

CAUTION:

When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any con-
nector terminals.

Fail-safe

INFOID:0000000006359898

When a system malfunction occurs, the 4WD warning lamp turns ON and the 4WD control becomes 2WD
state.

25

(W)

Ground

4WD solenoid (RH) power
supply

Output

Engine speed: At idle

0 V

Engine speed: 3,000 or more constant

2.5 V

*

26

(Y)

Ground

4WD solenoid (RH) ground

Input

Always

1.5 V or less

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

+

-

Signal name

Input/

Output

Detected

DTC

Possible cause

4WD warning

lamp status

Vehicle condition

P1804

Internal malfunction of 4WD control module

OFF

Normal control continues.

P1808

• ABS actuator and electric unit (control unit)
- Malfunction of ABS actuator and electric unit (control unit) cir-

cuit error

- Wheel speed sensor error
• 4WD control module
• CAN communication line

ON

Front and rear distribution control
stops.

P1809

Internal malfunction of 4WD control module

P1811

• Malfunction of 4WD control module power supply circuit (open

or short)

• Malfunction of 4WD control module
• Battery

P1813

• 4WD mode switch
- Internal malfunction of 4WD mode switch
- Malfunction of 4WD mode switch circuit
• 4WD control module

P181B

Self-shut of 4WD control module is incomplete.

ON

Front and rear distribution control
stops.
NOTE:
The state becomes 4WD only when
a turning difference occurs between
front and rear wheels.

P181D

• ECM
• 4WD control module
• CAN communication line

P181E

• Steering angle sensor
- Steering angle sensor error
- Malfunction of steering angle sensor circuit
• Malfunction of 4WD control module
• CAN communication line

OFF

Right and left rear wheels difference
control stops.

P181F

Writing unit parameter is incomplete.

ON

Front and rear distribution control
stops.

P1820

• ECM
• 4WD control module
• CAN communication line

OFF

Normal control continues.

4WD CONTROL MODULE

DLN-31

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

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P1829

• ECM
• 4WD control module
• CAN communication line

ON

Front and rear distribution control
stops.

P182D

• Internal malfunction of electric controlled coupling (LH)
• Malfunction of 4WD solenoid (LH) power supply circuit (open

or short)

• Malfunction of 4WD control module

P182E

• Internal malfunction of electric controlled coupling (RH)
• Malfunction of 4WD solenoid (RH) power supply circuit (open

or short)

• Malfunction of 4WD control module

P182F

• Internal malfunction of electric controlled coupling (left) tem-

perature sensor

• Malfunction of electric controlled coupling (left) temperature

sensor circuit

• Malfunction of 4WD control module

OFF

Normal control continues.

P1830

• ABS actuator and electric unit (control unit)
• 4WD control module
• CAN communication line

P1831

• ABS actuator and electric unit (control unit)
• 4WD control module
• CAN communication line

P1832

• ABS actuator and electric unit (control unit)
• 4WD control module
• CAN communication line

P183A

• Internal malfunction of electric controlled coupling (right) tem-

perature sensor

• Malfunction of electric controlled coupling (right) temperature

sensor circuit

• Malfunction of 4WD control module

P183B

• Malfunction of 4WD solenoid power supply circuit
• Malfunction of 4WD control module
• Malfunction of 4WD control module power supply circuit (open

or short)

• Battery

ON

Front and rear distribution control
stops.

Detected

DTC

Possible cause

4WD warning

lamp status

Vehicle condition

DLN-32

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

4WD CONTROL MODULE

Protection Function

INFOID:0000000006542957

4WD system activates its protection function (shuts down 4WD system temporarily) if 4WD system detects
high load continuously, the front wheel tire size differs from the rear tire size or the rear RH wheel tire size dif-
fers from the rear LH tire size. (4WD system is automatically restored if 4WD system no longer detects any
overload or the tire size difference is eliminated.)

*1: 2 times/second (blinking for approximately 1 minute and then turned OFF)
*2: 1 time/2 seconds (continuing to blink until ignition switch is turned OFF)
NOTE:
• If the warning lamp blinks slowly during driving but remains OFF after the engine is restarted, the system is

normal. If it again blinks slowly after driving for some time, vehicle must be inspected.

• When there is a difference of revolution speed between the front and rear wheel the shift occasionally

changes to direct 4-wheel driving conditions automatically. This is not a malfunction.

P183C

• ABS actuator and electric unit (control unit)
• Yaw rate/side/decel G sensor
• 4WD control module
• CAN communication line

OFF

Right and left rear wheels difference
control stops.

P183D

• ABS actuator and electric unit (control unit)
• Yaw rate/side/decel G sensor
• 4WD control module
• CAN communication line

P183E

• ABS actuator and electric unit (control unit)
• Yaw rate/side/decel G sensor
• 4WD control module
• CAN communication line

P183F

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

P1840

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

P1864

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

P1865

• CVT sensor
• TCM
• 4WD control module
• CAN communication line

U1000

CAN communication error

ON

Front and rear distribution control
stops.

U1010

Internal malfunction of 4WD control module

Detected

DTC

Possible cause

4WD warning

lamp status

Vehicle condition

Detected

DTC

Warning lamp

Possible cause

Vehicle condition

—

Quick blinking

*1

Turning difference remains between front and rear wheels or between
right and left rear wheels, resulting in an oil temperature rise in drive train
related parts.
NOTE:
It is not malfunction.

Shuts down 4WD system

temporarily

—

Slow blinking

*2

Malfunction in each tire or different tire diameter

4WD CONTROL MODULE

DLN-33

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

DTC Inspection Priority Chart

INFOID:0000000006359902

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

DTC Index

INFOID:0000000006359903

Priority

Detected items (DTC)

1

• U1010 CONTROL UNIT (CAN)
• U1000 CAN COMM CIRCUIT

2

• P1808 VHCL SPEED SEN-ABS
• P1809 CONTROL UNIT 4
• P1811 BATTERY VOLTAGE
• P1813 4WD MODE SW
• P181F INCOMP CALIBRATION
• P1829 THROTTLE POSI SEN
• P182D SOLENOID LEFT
• P182E SOLENOID RIGHT
• P183B SOL POWER SUPPLY

3

• P181E STR ANGLE SEN
• P183C DECEL G SENSOR
• P183D SIDE G SENSOR
• P183F GEAR POSI SIGNAL
• P183E YAWRATE SENSOR
• P1840 OUTPUT SPEED SIGNAL
• P1864 INPUT SPEED SIGNAL
• P1865 GEAR RATIO

4

• P1804 CONTROL UNIT 3
• P181B INCOMP SELF SHUT
• P181D ENGINE SYSTEM
• P1820 ENGINE SPEED SIG
• P182F TEMP SENSOR LEFT
• P1830 ABS OP SIG
• P1831 VDC OP SIG
• P1832 TCS OP SIG
• P183A TEMP SENSOR RIGHT

DTC

Display Items

Reference

P1804

CONTROL UNIT3

DLN-40, "DTC Logic"

P1808

VHCL SPEED SEN-ABS

DLN-41, "DTC Logic"

P1809

CONTROL UNIT4

DLN-40, "DTC Logic"

P1811

BATTERY VOLTAGE

DLN-42, "DTC Logic"

P1813

4WD MODE SW

DLN-44, "DTC Logic"

P181B

INCOMP SELF SHUT

DLN-47, "DTC Logic"

P181D

ENGINE SYSTEM

DLN-49, "DTC Logic"

P181E

STR ANGLE SEN

DLN-50, "DTC Logic"

P181F

INCOMP CALIBRATION

DLN-51, "DTC Logic"

P1820

ENGINE SPEED SIG

DLN-52, "DTC Logic"

P1829

THROTTLE POSI SEN

DLN-53, "DTC Logic"

P182D

SOLENOID LEFT

DLN-54, "DTC Logic"

P182E

SOLENOID RIGHT

DLN-57, "DTC Logic"

P182F

TEMP SENSOR LEFT

DLN-60, "DTC Logic"

P1830

ABS OP SIG

DLN-62, "DTC Logic"

P1831

VDC OP SIG

DLN-63, "DTC Logic"

P1832

TCS OP SIG

DLN-64, "DTC Logic"

DLN-34

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: TY21B]

4WD CONTROL MODULE

NOTE:
If some DTCs are displayed at the same time, refer to

DLN-33, "DTC Inspection Priority Chart"

.

P183A

TEMP SENSOR RIGHT

DLN-65, "DTC Logic"

P183B

SOL POWER SUPPLY

DLN-67, "DTC Logic"

P183C

DECEL G SENSOR

DLN-69, "DTC Logic"

P183D

SIDE G SENSOR

DLN-70, "DTC Logic"

P183E

YAWRATE SENSOR

DLN-71, "DTC Logic"

P183F

GEAR POSI SIGNAL

DLN-72, "DTC Logic"

P1840

OUTPUT SPEED SIGNAL

DLN-73, "DTC Logic"

P1864

INPUT SPEED SIGNAL

DLN-74, "DTC Logic"

P1865

GEAR RATIO

DLN-75, "DTC Logic"

U1000

CAN COMM CIRCUIT

DLN-76, "DTC Logic"

U1010

CONTROL UNIT (CAN)

DLN-77, "DTC Logic"

DTC

Display Items

Reference

4WD SYSTEM

DLN-35

< WIRING DIAGRAM >

[TRANSFER: TY21B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

WIRING DIAGRAM

4WD SYSTEM

Wiring Diagram

INFOID:0000000006359904

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information/Explanation of Option Abbreviation"

.

JCDWA0646GB

DLN-36

< BASIC INSPECTION >

[TRANSFER: TY21B]

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000006359905

DETAILED FLOW

1.

INTERVIEW FROM THE CUSTOMER

Clarify customer complaints before inspection. First of all, perform an interview utilizing

DLN-37, "Diagnostic

Work Sheet"

and reproduce symptoms as well as fully understand it. Ask customer about his/her complaints

carefully. Check symptoms by driving vehicle with customer, if necessary.

CAUTION:

Customers are not professional. Never guess easily like “maybe the customer means that...,” or
“maybe the customer mentions this symptom”.

>> GO TO 2.

2.

CHECK SYMPTOM

Reproduce the symptom that is indicated by the customer, based on the information from the customer
obtained by interview. Also check that the symptom is not caused by protection function. Refer to

DLN-32,

"Protection Function"

.

CAUTION:

When the symptom is caused by normal operation, fully inspect each portion and obtain the under-
standing of customer that the symptom is not caused by a malfunction.

>> GO TO 3.

3.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is any DTC detected?

YES

>> Record or print self-diagnosis results. GO TO 4.

NO

>> GO TO 6.

4.

RECHECK SYMPTOM

With CONSULT-III

1.

Erase self-diagnostic results for “ALL MODE AWD/4WD”.

2.

Perform DTC confirmation procedures for the error detected system.

NOTE:
If some DTCs are detected at the same time, determine the order for performing the diagnosis based on

DLN-

33, "DTC Inspection Priority Chart"

.

Is any DTC detected?

YES

>> GO TO 5.

NO

>> Check harness and connectors based on the information obtained by interview. Refer to

GI-42,

"Intermittent Incident"

.

5.

REPAIR OR REPLACE ERROR-DETECTED PARTS

• Repair or replace error-detected parts.
• Reconnect part or connector after repairing or replacing.
• When DTC is detected, erase self-diagnostic results for “ALL MODE AWD/4WD”.

>> GO TO 7.

6.

IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS

Estimate error-detected system based on symptom diagnosis and perform inspection.
Can the error-detected system be identified?