Qashqai J11. Driveline - part 7

 

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Qashqai J11. Driveline - part 7

 

 

SERVICE DATA AND SPECIFICATIONS (SDS)

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000010755212

Preload Torque

INFOID:0000000010755213

Unit: N·m (kg-m, in-lb)

Backlash

INFOID:0000000010755214

Unit: mm (in)

Companion Flange Runout

INFOID:0000000010755215

Unit: mm (in)

Applied model

Axle

4WD

Engine

MR20DD

Transaxle

CVT

Transfer model

TY21C

Gear ratio

0.404

Number of teeth

Ring gear

42

Drive pinion

17

Oil capacity

Refer to 

MA-59, "Fluids and Lubricants"

.

Item

Standard

Pinion bearing preload (P

1

)

0.25 – 1.15 (0.03 – 0.11, 3.0 – 10.0)

Total preload

With all oil seals

P

1

 + 0.7 – 1.0 (0.08 – 0.1, 7.0 – 8.0)

Without oil seals (for transfer cover and 
transfer case)

P

1

 + 0.5 – 0.8 (0.06 – 0.08, 5.0 – 7.0)

Item

Standard

Ring gear to drive pinion

0.16 – 0.21 (0.0063 – 0.0083)

Item

Standard

Companion flange face runout

0.15 (0.0059) or less

Inner side of the companion flange runout

0.1 (0.004) or less

DLN-98

< PRECAUTION >

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PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precautions for Removing Battery Terminal

INFOID:0000000010508557

• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key

or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.

• When disconnecting the 12V battery terminal, turn off the ACC

power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.

•  For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.

•  After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

HOW TO DISCONNECT 12V BATTERY TERMINAL

Disconnect 12V battery terminal according to Instruction 1 or Instruction 2 described below.
For vehicles parked by ignition switch OFF, refer to Instruction 2.

INSTRUCTION 1

1.

Open the hood.

2.

Turn key switch to the OFF position with the driver side door opened.

3.

Get out of the vehicle and close the driver side door.

4.

Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

5.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)

1.

Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.

2.

Open the driver side door.

3.

Open the hood.

4.

Close the driver side door.

5.

Wait at least 3 minutes.

SEF289H

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

PRECAUTIONS

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CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

6.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000010505230

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Procedure without Cowl Top Cover

INFOID:0000000010505229

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.

Service Notice or Precautions for Transfer

INFOID:0000000010288327

CAUTION:

• After overhaul refill the transfer with new transfer oil.
• Check the oil level or replace the oil only with the vehicle parked on level surface.
• During removal or installation, keep inside of transfer clear of dust or dirt.
• Replace all tires at the same time. Always use tires of the proper size and the same brand and pat-

tern. Fitting improper size and unusual wear tires applies excessive force to vehicle mechanism and
can cause longitudinal vibration.

• Disassembly should be done in a clean work area.

PIIB3706J

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< PRECAUTION >

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PRECAUTIONS

• Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the

internal parts from becoming contaminated by dirt or other foreign matter.

• Check for the correct installation status prior to removal or disassembly. If matching marks are

required, be certain they do not interfere with the function of the parts when applied.

• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspec-

tion or reassembly.

• Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace

them with a new one if necessary.

• Gaskets, seals, O-rings and lock nuts should be replaced any time when the transfer is disassem-

bled.

• In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to out-

side. If tightening sequence is specified, use it.

• Observe the specified torque when assembling.
• Clean and flush the parts sufficiently and blow-dry them.
• Be careful not to damage sliding surfaces and mating surfaces.
• Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could

interfere with the operation of the transfer.

PREPARATION

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PREPARATION

PREPARATION

Special Service Tools

INFOID:0000000010288328

Tool number
Tool name

Description

ST30720000
Drift 
a: 

φ

77 mm (3.03 in) dia.

b: 

φ

55.5 mm (2.185 in) dia.

• Installing adapter case oil seal (inner/outer)
• Installing drive pinion oil seal

ST27861000
Drift 
a: 

φ

62 mm (2.44 in) dia.

b: 

φ

52 mm (2.05 in) dia.

• Installing adapter case oil seal (inner/outer)
• Installing drive pinion oil seal

ST22730000
Replacer

• Removing inner race of ring gear shaft bear-

ing (transfer case side)

• Removing inner race of drive pinion bearing 

(front side)

ST33052000
Drift 
a: 

φ

22 mm (0.87 in) dia.

b: 

φ

28 mm (1.10 in) dia.

• Removing ring gear
• Removing inner race of drive pinion bearing 

(front side)

ST01530000
Drift 
a: 

φ

48 mm (1.89 in) dia.

b: 

φ

41 mm (1.61 in) dia.

Installing ring gear

ST35272000
Drift
a: 

φ

72 mm (2.83 in) dia.

b: 

φ

40 mm (1.57 in) dia.

c: 

φ

35.5 mm (1.398 in) dia.

• Installing ring gear
• Installing outer race of drive pinion bearing 

(front side)

NT115

ZZA1003D

ZZA0700D

NT116

ZZA0534D

NT107

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PREPARATION

Commercial Service Tools

INFOID:0000000010288329

KV10111400
Drift 
a: 

φ

25 mm (0.98 in) dia.

b: 

φ

20.8 mm (0.819 in) dia.

Installing inner race of ring gear shaft bearing 
(transfer case side)

KV381054S0
Puller

Removing drive pinion oil seal

ST23860000
Drift 
a: 

φ

38 mm (1.50 in) dia.

b: 

φ

33 mm (1.30 in) dia.

Installing inner race of drive pinion bearing 
(front side)

ST3127S000
Preload gauge

Measuring preload torque

ST38280000
Bushing remover

Installing outer race of drive pinion bearing 
(front side)

ST33230000
Drift 
a: 

φ

51 mm (2.01 in) dia.

Installing outer race of drive pinion bearing 
(rear side)

Tool number
Tool name

Description

ZZA1003D

ZZA0601D

ZZA0534D

ZZA0503D

NT685

ZZA0938D

PREPARATION

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Tool name

Description

Drift 
a: 

φ

63 mm (2.48 in) dia.

b: 

φ

58 mm (2.28 in) dia.

Installing adapter case oil seal (inner)

Drift 
a: 

φ

90 mm (3.54 in) dia.

b: 

φ

88 mm (3.46 in) dia.

Installing adapter case oil seal (outer)

Drift 
a: 

φ

12 mm (0.47 in) dia.

b: 

φ

18 mm (0.71 in) dia.

Removing inner race of ring gear shaft bear-
ing (transfer case side)

Drift 
a: 

φ

49 mm (1.93 in) dia.

b: 

φ

67 mm (2.64 in) dia.

Removing inner race of ring gear shaft bear-
ing (adapter case side)

Drift 
a: 

φ

80 mm (3.15 in) dia.

b: 

φ

50 mm (1.97 in) dia.

Installing outer race of ring gear shaft bearing 
(adapter case side)

Drift 
a: 

φ

57 mm (2.24 in) dia.

b: 

φ

47 mm (1.85 in) dia.

Installing inner race of ring gear shaft bearing 
(adapter case side)

Drift 
a: 

φ

61 mm (2.40 in) dia.

b: 

φ

48 mm (1.89 in) dia.

Installing outer race of drive pinion bearing 
(front side)

ZZA1003D

ZZA1003D

ZZA1178D

NT660

ZZA1000D

ZZA1003D

ZZA1000D

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< BASIC INSPECTION >

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DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000010288262

DETAILED FLOW

1.

INTERVIEW FROM THE CUSTOMER

Clarify customer complaints before inspection. First of all, reproduce symptoms, and understand them fully.
Ask customer about his/her complaints carefully. Check symptoms by driving vehicle with customer, if neces-
sary.

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 AWD WARNING LAMP

Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.
Does AWD warning lamp turn ON?

YES

>> GO TO 3.

NO

>> GO TO 6.

3.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Perform AWD control unit self-diagnosis.

2.

Perform malfunction detected by self-diagnosis.

3.

Erase AWD control unit self-diagnosis results.

>> GO TO 4.

4.

CHECK TERMINALS AND HARNESS CONNECTORS

Check pin terminals for damage or loose connection with harness connector.

>> GO TO 5.

5.

CHECK SYMPTOM REPRODUCTION

With CONSULT

Perform DTC reproduction procedure for the error system.

Is any error detected?

YES

>> GO TO 2.

NO

>> GO TO 6.

6.

PERFORM SYMPTOM DIAGNOSIS

Perform the symptom diagnosis for each system.
Is any malfunction present?

YES

>> GO TO 2.

NO

>> GO TO 7.

7.

FINAL CHECK

With CONSULT

Check input/output signal standard of AWD control unit.

Is the input/output the standard value?

YES

>> INSPECTION END

NO

>> GO TO 2.

AWD SYSTEM

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SYSTEM DESCRIPTION

AWD SYSTEM

System Diagram

INFOID:0000000010288263

CONTROL DIAGRAM

 CROSS-SECTIONAL VIEW (M/T)

*: With ESP

E1DIA0343GB

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< SYSTEM DESCRIPTION >

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AWD SYSTEM

System Description

INFOID:0000000010288264

DESCRIPTION

• AWD controls distribution of drive power between front-wheel drive (100:0) and AWD (50:50) conditions

according to signals from sensors.

• It transmits/receives each signal from the following control unit via CAN communication line.

*: With ESP

AUTO Mode

• Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.
• AWD mode makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.
• On roads which do not require AWD, AUTO mode contributes to improved fuel economy by driving in condi-

tions close to front-wheel drive.

• Sensor inputs determine the vehicle's turning condition, and tight cornering/braking are controlled by distrib-

uting optimum torque to rear wheels.

LOCK Mode

1.

Transfer case

2.

Adapter case

3.

Ring gear shaft

4.

Ring gear

5.

Companion flange

6.

Drive pinion

JSDIA0206ZZ

Component parts

Function

ABS actuator and electric unit (control unit)

Transmits the following signals via CAN communication to AWD control unit.
• Vehicle speed signal
• Stop lamp switch signal (brake signal)

ECM

Transmits the following signals via CAN communication to AWD control unit.
• Accelerator pedal position signal
• Engine speed signal

Combination meter

Transmits conditions of parking brake switch signal via CAN communication to AWD con-
trol unit.

Steering angle sensor*

Transmits conditions of steering angle sensor signal via CAN communication to AWD 
control unit.

AWD SYSTEM

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• Front/rear wheel torque distribution is fixed, ensuring stable driving when climbing slopes.
• Vehicle will switch automatically to AUTO mode if vehicle speed increases. If vehicle speed then decreases,

the vehicle automatically returns to direct 4-wheel driving conditions.

NOTE:
If there is a significant difference in pressure or wear between tires, full vehicle performance is not available.
LOCK mode may be prohibited, or speeds at which LOCK mode is enabled may be restricted detecting tire
conditions.

2WD Mode

Vehicle is in front-wheel drive.
NOTE:
• If front wheels are slipping in 2WD mode, do not switch to AUTO or LOCK. This can cause difficulties for the

system.

• Even if the AWD mode switch is in 2WD mode, the AWD control unit occasionally automatically change to

AUTO mode depending on the driving condition (For example; Depressing the acceleration firmly). This is
not malfunction. However, AWD indicator lamp dose not illuminate.

POWER TRANSFER DIAGRAM

OPERATION PRINCIPLE

Electric Controlled Coupling

1.

The AWD control unit supplies command current to electric con-
trolled coupling (AWD solenoid).

2.

The control clutch is engaged by electromagnet and torque is
detected in control clutch.

3.

The cam operates in response to control clutch torque and
applies pressure to main clutch.

4.

The main clutch transmits torque to front wheels according to
pressing power.

• Transmission torque to the rear wheels is determined accord-

ing to command current.

1.

Engine

2.

Transaxle

3.

Transfer

4.

Propeller shaft

5.

Electric controlled coupling

6.

Rear final drive

JSDIA0208ZZ

SFIA0284E

SDIA1844E

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< SYSTEM DESCRIPTION >

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AWD SYSTEM

Component Parts Location

INFOID:0000000010288265

Component Description

INFOID:0000000010288266

1.

Combination meter

2.

Steering angle sensor

3.

ABS actuator and electric control unit

4.

ECM

5.

AWD lock switch

6.

AWD control unit

7.

Electric controled coupling

8.

AWD solenoid

A.

Instrument lower panel LH

B.

Rear wheel house outer panel in lug-
gage room of teh left side

C.

Rear final drive assembly

E1DIA0342ZZ

Component parts

Reference/Function

AWD control unit

DLN-111, "Description"

Wheel sensors

BRC-9, "Wheel Sensor and Sensor Rotor"

AWD solenoid

DLN-113, "Description"

Electric controlled coupling

Transmits driving force to rear final drive.

AWD warning lamp

DLN-126, "Description"

AWD indicator lamp

DLN-127, "Description"

LOCK indicator lamp

DLN-128, "Description"

AWD mode switch

DLN-116, "Description"

ABS actuator and electric unit (control unit)

DLN-112, "Description"

ECM

DLN-119, "Description"

Combination meter

DLN-127, "Description"

DIAGNOSIS SYSTEM (AWD CONTROL UNIT)

DLN-109

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DIAGNOSIS SYSTEM (AWD CONTROL UNIT)

CONSULT Function

INFOID:0000000010288267

FUNCTION

CONSULT can display each diagnostic item using the diagnostic test modes shown following.

SELF-DIAG RESULT MODE

Drive at 30 km/h or more for approximately 1 minute before performing the self-diagnosis.

Display Item List

How to Erase Self-Diagnostic Results

Before erasing DTC memory, start the engine and drive at 30 km/h or more for approximately 1 minute. Check
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 AWD warning lamp turns ON with system malfunction of “ABS SYS-
TEM [C1203]”. AWDAWD warning lamp may not turn OFF if it is normal unless ignition switch turns OFF at
once and engine restarts after that.

DATA MONITOR MODE

Display Item List

Diagnostic test mode

Function

ECU part number

AWD control unit part number can be read.

Self-diagnostic results

Self-diagnostic results can be read and erased quickly.

Data monitor

Input/Output data in the AWD control unit can be read.

Active test

Diagnostic Test Mode in which CONSULT drives some actuators apart from the AWD control unit 
and also shifts some parameters in a specified range.

DTC

Items

(CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

C1201

CONTROLLER FAILURE

Malfunction has occurred inside AWD control unit.

Internal malfunction of AWD 
control unit

C1203

ABS SYSTEM

Malfunction related to wheel sensor has been de-
tected by ABS actuator and electric unit (control 
unit).

ABS malfunction
• Vehicle speed signal error
• Stop lamp switch signal 

(brake signal) error

C1204

AWD SOLENOID

Malfunction related to AWD solenoid has been de-
tected.

Internal malfunction of elec-
tronic controlled coupling

C1205

AWD ACTUATOR RLY

Malfunction has been detected from AWD actuator 
relay integrated with AWD control unit, or malfunc-
tion related to AWD solenoid has been detected.

Internal malfunction of AWD 
control unit

C1209

MODE SW

More than two switch inputs are simultaneously 
detected due to short circuit of AWD mode switch.

Malfunction of AWD mode 
switch or AWD mode switch 
circuit.

C1210

ENGINE SIGNAL 1

Malfunction has been detected from ECM.

Malfunction of engine control 
system
• Accelerator pedal position 

signal error

• Engine speed signal error

U1000

CAN COMM CIRCUIT

When AWD control unit is not transmitting or re-
ceiving CAN communication signal for 2 seconds 
or more.

• CAN communication error
• Malfunction of AWD control 

unit

U1010

CONTROL UNIT (CAN)

When detecting error during the initial diagnosis of 
CAN controller of AWD control unit.

Malfunction of AWD control 
unit

DLN-110

< SYSTEM DESCRIPTION >

[TRANSFER: TY30A]

DIAGNOSIS SYSTEM (AWD CONTROL UNIT)

×

: Applicable

: Optional item

ACTIVE TEST MODE

Description

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

Test Item

CAUTION:

Never energize continuously for a long time.

Monitor item (Unit)

Monitor Menu

Remarks

ECU INPUT 

SIGNALS

MAIN

SIGNALS

FR RH SENSOR [km/h] or [mph]

×

×

Wheel speed calculated by front wheel sensor RH sig-
nal is displayed.

FR LH SENSOR [km/h] or [mph]

×

×

Wheel speed calculated by front wheel sensor LH sig-
nal is displayed.

RR RH SENSOR [km/h] or [mph]

×

×

Wheel speed calculated by rear wheel sensor RH sig-
nal is displayed.

RR LH SENSOR [km/h] or [mph]

×

×

Wheel speed calculated by rear wheel sensor LH sig-
nal is displayed.

BATTERY VOLT [V]

Power supply voltage for AWD control unit

THRTL POS SEN [%]

Throttle opening status is displayed.

ETS SOLENOID [A]

Monitored value of current at AWD solenoid

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 AWD actuator relay (integrated 
in AWD control unit) is displayed.

AWD WARN LAMP [On/Off]

Control status of AWD warning lamp is displayed.

AWD MODE SW [2WD/AUTO/LOCK]

Mode switch is not equipped, but displayed.

AWD MODE MON [2WD/AUTO/LOCK]

Control status of AWD is displayed.

DIS-TIRE MONI [mm]

Improper size tire installed condition is displayed.

P BRAKE SW [On/Off]

Parking switch signal status via CAN communication 
line is displayed.

Test item

Condition

Description

ETS S/V
(Detects AWD solenoid)

• Vehicle stopped
• Engine running
• No DTC detected

Change command current value to AWD solenoid, and then change driving 
mode. (Monitor value is normal if it is within approximately 

±

10% of command 

value.)
• Qu: Increase current value in increments of 0.1 A
• Qd: Decrease current value in increments of 0.1 A
• UP: Increase current value in increments of 0.02 A
• DOWN: Decrease current value in increments of 0.02 A

C1201 AWD CONTROL UNIT

DLN-111

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY30A]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

DTC/CIRCUIT DIAGNOSIS

C1201 AWD CONTROL UNIT

Description

INFOID:0000000010288268

• Controls driving force distribution by signals from each sensor from front wheel driving mode (100:0) to AWD

mode (50:50).

• 2WD mode is available by fail-safe function if malfunction is detected in AWD system.

DTC Logic

INFOID:0000000010288269

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

With CONSULT

1.

Turn the ignition switch OFF to ON.

2.

Perform AWD control unit self-diagnosis.

Is DTC “C1201” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

DLN-111, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010288270

1.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Erase AWD control unit self-diagnosis results.

2.

Turn ignition switch OFF, and then wait 10 seconds or more.

3.

Perform AWD control unit self-diagnosis.

Is DTC “C1201” detected?

YES

>> Replace AWD control unit. Refer to 

DLN-153, "Exploded View"

.

NO

>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If

any items are damaged, repair or replace damaged parts.

DTC

Items

(CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

C1201

CONTROLLER FAILURE

Malfunction has occurred inside AWD 
control unit.

Internal malfunction of AWD control unit

DLN-112

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY30A]

C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Description

INFOID:0000000010288271

Transmits the following signals via CAN communication to AWD control unit.
• Vehicle speed signal
• Stop lamp switch signal (brake signal)

DTC Logic

INFOID:0000000010288272

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

With CONSULT

1.

Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.

2.

Perform AWD control unit self-diagnosis.

Is DTC “C1203” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

DLN-112, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010288273

1.

PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

With CONSULT

Perform ABS actuator and electric unit (control unit) self-diagnosis.

Is any error system detected?

YES

>> Check the error system.

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Erase AWD control unit self-diagnosis results.

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 AWDAWD control unit self-diagnosis.

Is DTC “C1203” detected?

YES

>> Replace AWD control unit. Refer to 

DLN-153, "Exploded View"

.

NO

>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If

any items are damaged, repair or replace damaged parts.

DTC

Items

(CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

C1203

ABS SYSTEM

Malfunction related to wheel sensor has 
been detected by ABS actuator and 
electric unit (control unit).

ABS malfunction
• Vehicle speed signal error
• Stop lamp switch signal (brake signal) 

error

 

 

 

 

 

 

 

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