Juke F15 (2012 year). Service Repair Manual — part 344

PRECAUTIONS

STC-3

< PRECAUTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

PRECAUTION

PRECAUTIONS

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

INFOID:0000000006600919

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.

The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which 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 the “SRS AIR BAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

• The vehicle may be equipped with a passenger air bag deactivation switch which can be operated by

the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled and
will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled and
could inflate for certain types of collision. After SRS maintenance or repair, make sure the passenger
air bag deactivation switch is in the same position (ON or OFF) as when the vehicle arrived for ser-
vice.

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

WARNING:

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT 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 Necessary for Steering Wheel Rotation after Battery Disconnect

INFOID:0000000006600920

NOTE:
• Before removing and installing any control units, first turn the ignition switch to the LOCK position, then dis-

connect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both

battery cables.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.

STC-4

< PRECAUTION >

PRECAUTIONS

OPERATION PROCEDURE

1.

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

2.

Turn the ignition switch to ACC position.
(At this time, the steering lock will be released.)

3.

Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.

4.

Perform the necessary repair operation.

5.

When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock
when the ignition switch is turned to LOCK position.)

6.

Perform self-diagnosis check of all control units using CONSULT-III.

Service Notice or Precautions for EPS System

INFOID:0000000006600868

• Check the following item when performing the trouble diagnosis.
- Check any possible causes by interviewing the symptom and it

s condition from the customer if any malfunc-

tion, such as EPS warning lamp is turned ON, occurs.

- Check if air pressure and size of tires are proper, the specified part is used for the steering wheel, and con-

trol unit is genuine part.

- Check if the connection of steering column assembly and steering gear assembly is proper (there is not

looseness of mounting bolts, damage of rods, boots or sealants, and leakage of grease, etc).

- Check if the wheel alignment is adjusted properly.
- Check if there is any damage or modification to suspension or body resulting in increased weight or altered

ground clearance.

- Check if installation conditions of each link and suspension are proper.
- Check if the battery voltage is proper.
- Check connection conditions of each connector are proper.
- Before connecting or disconnecting the EPS control unit harness

connector, turn ignition switch “OFF” and disconnect battery
ground cable. Because battery voltage is applied to EPS control
unit even if ignition switch is turned “OFF”.

- When connecting or disconnecting pin connectors into or from

EPS control unit, take care not to damage pin terminals (bend or
break).

- When connecting pin connectors, make sure that there are no

bends or breaks on EPS control unit pin terminal.

• During quick steering, rasping noise may be heard from around the

steering wheel. This is not a malfunction. The noise is an operating
noise of the EPS system under normal conditions. If the rasping
noise occurs during slow steering, this may not be an operating
noise of the system. In this case, it is necessary to find out the
location of the noise and repair, if necessary.

SEF289H

SEF291H

COMPONENT PARTS

STC-5

< SYSTEM DESCRIPTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000006600869

LHD models

*: Models with Nissan Dynamic Control System

JSGIA0830GB

1.

Multi display unit

*

Refer to

DMS-3, "Component Parts

Location"

.

2.

ABS actuator and electric unit (con-
trol unit)
Refer to

BRC-9, "Component Parts

Location"

(without ESP),

BRC-97,

"Component Parts Location"

(with

ESP).

3.

ECM
Refer to

EC-25, "ENGINE CON-

TROL SYSTEM :
Component Parts Location"

(MR16DDT),

EC-455, "ENGINE

CONTROL SYSTEM :
Component Parts Location"

(HR16DE),

EC-813, "Component

Parts Location"

(K9K).

4.

Combination meter
Refer to

MWI-4, "METER SYSTEM :

Component Parts Location"

.

5.

EPS warning lamp
(In combination meter)

6.

EPS motor

7.

EPS control unit

8.

Reduction gear

9.

Torque sensor

A.

Steering column assembly

STC-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

RHD models

*: Models with Nissan Dynamic Control System

Component Description

INFOID:0000000006600870

JSGIA0831GB

1.

Multi display unit

*

Refer to

DMS-3, "Component Parts

Location"

.

2.

Combination meter
Refer to

MWI-4, "METER SYSTEM :

Component Parts Location"

.

3.

EPS warning lamp
(In combination meter)

4.

ECM
Refer to

EC-25, "ENGINE CON-

TROL SYSTEM :
Component Parts Location"

(MR16DDT),

EC-455, "ENGINE

CONTROL SYSTEM :
Component Parts Location"

(HR16DE),

EC-813, "Component

Parts Location"

(K9K).

5.

ABS actuator and electric unit (con-
trol unit)
Refer to

BRC-9, "Component Parts

Location"

(without ESP),

BRC-97,

"Component Parts Location"

(with

ESP).

6.

EPS motor

7.

EPS control unit

8.

Reduction gear

9.

Torque sensor

A.

Steering column assembly

Components parts

Reference

EPS control unit

STC-7, "EPS Control Unit"

EPS motor

STC-7, "EPS Motor"

Torque sensor

STC-7, "Torque Sensor"

Reduction gear

STC-7, "Reduction Gear"

EPS warning lamp

STC-8, "EPS SYSTEM : System Description"

COMPONENT PARTS

STC-7

< SYSTEM DESCRIPTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

*: Models with Nissan Dynamic Control System

EPS Control Unit

INFOID:0000000006600871

• EPS control unit performs an arithmetical operation on data, such as steering wheel turning force (sensor

signal) from the torque sensor, vehicle speed signal, etc. Then it generates an optimum assist torque signal
to the EPS motor according to the driving condition.

• EPS control unit decreases the output signal to EPS motor while extremely using the power steering func-

tion (e.g., full steering) consecutively for protecting EPS motor and EPS control unit (Overload protection
control).

• In SPORT mode, changes the steering assist characteristic to enhance a stable steering feel according to

the mode signals from multi display unit via CAN communication. (Models with Nissan Dynamic Control Sys-
tem)

EPS Motor

INFOID:0000000006600872

EPS motor provides the assist torque by the control signal from EPS control unit.

Torque Sensor

INFOID:0000000006600873

Torque sensor detects the steering torque, and transmit the signal to EPS control unit.

Reduction Gear

INFOID:0000000006600874

Reduction gear increases the assist torque provided from EPS motor with worm gears, and outputs to the col-
umn shaft.

ECM

• Transmits mainly the following signals to EPS control unit via

CAN communication.

- Engine status signal

ABS actuator and electric unit (control unit)

• Transmits mainly the following signal to EPS control unit via

CAN communication.

- Vehicle speed signal

Combination meter

• Transmits mainly the following signal to EPS control unit via

CAN communication.

- Vehicle speed signal

• Turns ON the EPS warning lamp according to the signal from

EPS control unit via CAN communication.

Multi display unit

*

• Transmits mainly the following signals to EPS control unit via

CAN communication.

- ECO mode signal
- NORMAL mode signal
- SPORT mode signal

Components parts

Reference

STC-8

< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

EPS SYSTEM

EPS SYSTEM : System Description

INFOID:0000000006600875

• EPS control unit performs an arithmetical operation on data, such

as steering wheel turning force (sensor signal) from the torque
sensor, vehicle speed signal, etc. Then it generates an optimum
assist torque signal to the EPS motor according to the driving con-
dition.

• In case of an error in the electrical system, the fail-safe function

stops output signals to the EPS motor. Refer to

STC-9, "EPS SYS-

TEM : Fail-Safe"

.

• EPS control unit decreases the output signal to EPS motor while

extremely using the power steering function (e.g., full steering)
consecutively for protecting EPS motor and EPS control unit
(Overload protection control). Refer to

STC-9, "EPS SYSTEM :

Protection Function"

.

• EPS control unit will decrease assistance under the following 2

conditions.

- Extensive steering at low speed will cause the EPS control unit

and EPS motor to heat up, once temperature reaches critical point
EPS control unit will reduce current to reduce heat up. System will
recover as temperature lowers (reduced or no assistance).

- Holding steering on rack-end (full lock) for 1 second will cause the

system to engage rack-end protection. This reduces assistance
down to 50% in order to prevent heat up. Assistance is immedi-
ately returned to 100% when steering released or turned away
from rack-end.

• In SPORT mode, changes the steering assist characteristic to enhance a stable steering feel according to

the mode signals from multi display unit via CAN communication. (Models with Nissan Dynamic Control Sys-
tem)

SYSTEM DIAGRAM

Multi display unit is applied to models with Nissan Dynamic Control System.

INPUT/OUTPUT SIGNAL

Communicates the signal from each control unit via CAN communication.

JSGIA0832GB

JSGIA0833GB

Control unit

Signal status

ECM

• Transmits mainly the following signals to EPS control unit via CAN communication.
- Engine status signal

ABS actuator and electric unit (con-
trol unit)

• Transmits mainly the following signals to EPS control unit via CAN communication.
- Vehicle speed signal

SYSTEM

STC-9

< SYSTEM DESCRIPTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

*: Models with Nissan Dynamic Control System

EPS WARNING LAMP INDICATION

• Turn ON when there is a malfunction in EPS system. If indicates that fail-safe mode is engaged and enters a

manual steering state (Control turning force steering wheel becomes heavy).

• Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF after the engine

starts, if system is normal.

CAUTION:

EPS warning lamp also turns ON due to data reception error, CAN communication error etc.

EPS SYSTEM : Fail-Safe

INFOID:0000000006600921

• If any malfunction occurs in the system, and control unit detects the malfunction, EPS warning lamp on com-

bination meter turns ON to indicate system malfunction.

• When EPS warning lamp is ON, enters into a manual steering state. (Control turning force steering wheel

becomes heavy.)

EPS SYSTEM : Protection Function

INFOID:0000000006600922

EPS control unit decreases the output signal to EPS motor while extremely using the power steering function
(e.g., full steering) consecutively for protecting EPS motor and EPS control unit (Overload protection control).
While activating overload protection control, the assist torque gradually decreases, and the steering wheel
turning force becomes heavy. The normal assist torque is recovered if the steering wheel is not turned for a
while.

Combination meter

• Transmits mainly the following signals to EPS control unit via CAN communication.
- Vehicle speed signal
• Receives mainly the following signals from EPS control unit via CAN communication.
- EPS warning lamp signal

Multi display unit

*

• Transmits mainly the following signals to EPS control unit via CAN communication.
- ECO mode signal
- NORMAL mode signal
- SPORT mode signal

Control unit

Signal status

Condition

EPS warning lamp

Ignition switch ON. (Lamp check)

ON

Engine running.

OFF

EPS system malfunction [Other diagnostic item]

ON

STC-10

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (EPS CONTROL UNIT)

DIAGNOSIS SYSTEM (EPS CONTROL UNIT)

CONSULT-III Function

INFOID:0000000006600878

FUNCTION

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

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

ECU IDENTIFICATION

Displays the part number stored in the control unit.

SELF-DIAG RESULTS MODE

Refer to

STC-14, "DTC Index"

.

When “CRNT” 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.

DATA MONITOR MODE

Diagnostic test mode

Function

ECU identification

The part number stored in the control unit 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 EPS control unit can be read.

Item name

Display item

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 pres-

ently 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.

Monitor item (Unit)

Remarks

BATTERY VOLT (V)

Displays the power supply voltage for EPS control unit.

TORQUE SENSOR (Nm)

Displays steering wheel turning force detected by torque sensor.

MOTOR CURRENT (A)

Displays the current value consumed by EPS motor.

*1

MOTOR SIG (A)

Displays the current commanded value to EPS motor.

ASSIST TORQUE (Nm)

Displays assist torque of EPS motor being output by the electric power steering.

C/U TEMP (

°

C)

Displays the temperature of the EPS control unit.

ASSIST LEVEL (%)

Normally displays 100%. In case of an excessive stationary steering, the assist

curvature gradually falls. However, it return to 100% when left standing.

*2

VEHICLE SPEED (km/h) or (MPH)

Vehicle speed is displayed from vehicle speed signal via CAN communication.

*3

WARNING LAMP (On/Off)

EPS warning lamp control status is displayed.

ENGINE STATUS (Stop/Run)

Engine speed is displayed from engine status signal via CAN communication.

STEERING MODE (NORMAL/SPORT)

*4

Display the driving mode of Nissan Dynamic Control System received through
CAN communication.

DIAGNOSIS SYSTEM (EPS CONTROL UNIT)

STC-11

< SYSTEM DESCRIPTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

*1: Almost in accordance with the value of “MOTOR SIG”. It is not a malfunction though these values are not
accorded when steering quickly.
*2: Normally displays 100%. In case of an excessive stationary steering, the assist curvature gradually falls.
However, it returns to 100% when left standing.
*3: It is not a malfunction, though it might not be corresponding just after ignition switch in turned ON.
*4: Displays NORMAL in models without Nissan Dynamic Control System.

STC-12

< ECU DIAGNOSIS INFORMATION >

EPS CONTROL UNIT

ECU DIAGNOSIS INFORMATION

EPS CONTROL UNIT

Reference Value

INFOID:0000000006600879

VALUES ON THE DIAGNOSIS TOOL

CAUTION:

The output signal indicates the EPS control unit calculation data. The normal values will be displayed
even in the event that the output circuit (harness) is open.

*1: Almost in accordance with the value of “MOTOR SIG”. It is not a malfunction though these values are not
accorded when steering quickly.
*2: Normally displays 100%. In case of an excessive stationary steering, the assist curvature gradually falls.
However, it returns to 100% when left standing.
*3: It is not a malfunction, though it might not be corresponding just after ignition switch in turned ON.
*4: Displays NORMAL in models without Nissan Dynamic Control System.

Monitor item

Data monitor

Condition

Display value

BATTERY VOLT

Ignition switch: ON

Battery voltage

TORQUE SENSOR

Engine running

Steering wheel: Not steering (There is
no steering force)

Approx. 0 Nm

Steering wheel: Right turn

Positive value (Nm)

Steering wheel: Left turn

Negative value (Nm)

MOTOR CURRENT

Engine running

Steering wheel: Not steering (There is
no steering force)

Approx. 0 A

Steering wheel: Right or left turn

Displays consumption current of

EPS motor (A)

*1

MOTOR SIG

Engine running

Steering wheel: Not steering (There is
no steering force)

Approx. 0 A

Steering wheel: Right turn

Positive value (A)

Steering wheel: Left turn

Negative value (A)

ASSIST TORQUE

Engine running

Steering wheel: Not steering (There is
no steering force)

Approx. 0 Nm

Steering wheel: Right or left turn

Displays assist torque of EPS motor
(Nm)

C/U TEMP

Ignition switch ON or engine running

Displays temperature of inside of
EPS control unit (

°

C)

ASSIST LEVEL

Engine running

100 %

*2

VEHICLE SPEED

Vehicle stopped

0 km/h (0 mph)

While driving

Approximately equal to the indication

on speedometer

*3

(inside of

±

10%)

WARNING LAMP

EPS warning lamp: ON

On

EPS warning lamp: OFF

Off

ENGINE STATUS

Engine not running

Stop

Engine running

Run

STEERING MODE

*4

Engine running

Driving mode of NISSAN Dynamic
Control System: Except SPORT

NORMAL

Driving mode of NISSAN Dynamic
Control System: SPORT

SPORT

EPS CONTROL UNIT

STC-13

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

TERMINAL LAYOUT

PHYSICAL VALUES

Fail-Safe

INFOID:0000000006600880

• If any malfunction occurs in the system, and control unit detects the malfunction, EPS warning lamp on com-

bination meter turns ON to indicate system malfunction.

• When EPS warning lamp is ON, enters into a manual steering state. (Control turning force steering wheel

becomes heavy.)

Protection Function

INFOID:0000000006600881

EPS control unit decreases the output signal to EPS motor while extremely using the power steering function
(e.g., full steering) consecutively for protecting EPS motor and EPS control unit (Overload protection control).
While activating overload protection control, the assist torque gradually decreases, and the steering wheel
turning force becomes heavy. The normal assist torque is recovered if the steering wheel is not turned for a
while.

DTC Inspection Priority Chart

INFOID:0000000006600882

When multiple DTCs are detected simultaneously, check one by one depending on the following priority list.

JSGIA0834ZZ

Terminal No.

(Wire Color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/Output

1

(P)

Ground

CAN-L

Input/Output

2

(L)

Ground

CAN-H

Input/Output

4

(LG)

Ground

Ignition power supply

Input

Ignition switch: ON

9 – 18.2 V

Ignition switch: OFF

0 V

9

(R)

Ground

Battery power supply

Input

Always

9 – 18.2 V

10

(B)

Ground

Ground

Always

0 V

Priority

Priority order item (DTC)

1

U1000 CAN COMM CIRCUIT

2

C1609 VEHICLE SPEED SIGNAL

3

C1601 BATTERY POWER SUPPLY

4

Other than the above

STC-14

< ECU DIAGNOSIS INFORMATION >

EPS CONTROL UNIT

DTC Index

INFOID:0000000006600883

DTC

Items (CONSULT-III screen terms)

Reference

C1601

BATTERY VOLT

STC-19, "DTC Logic"

C1604

TORQUE SENSOR

STC-21, "DTC Logic"

C1606

EPS MOTOR

STC-22, "DTC Logic"

C1607

EEPROM

STC-23, "DTC Logic"

C1608

CONTROL UNIT

STC-23, "DTC Logic"

C1609

CAN VHCL SPEED

STC-24, "DTC Logic"

U1000

CAN COMM CIRCUIT

STC-25, "DTC Logic"

ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM

STC-15

< WIRING DIAGRAM >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

WIRING DIAGRAM

ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM

Wiring Diagram

INFOID:0000000006600884

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"

.

JCGWA0276GB

STC-16

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000006600885

DETAILED FLOW

1.

INTERVIEW FROM THE CUSTOMER

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

STC-17, "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

STC-13,

"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 “EPS”.
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 “EPS”.

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

STC-

13, "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 “EPS”.

>> 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?

DIAGNOSIS AND REPAIR WORKFLOW

STC-17

< BASIC INSPECTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

YES

>> GO TO 7.

NO

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

GI-42,

"Intermittent Incident"

.

7.

FINAL CHECK

With CONSULT-III

1.

Check the reference value for EPS control unit.

2.

Recheck the symptom and check that symptom is not reproduced on the same conditions.

Is the symptom reproduced?

YES

>> GO TO 3.

NO

>> INSPECTION END

Diagnostic Work Sheet

INFOID:0000000006600886

Description

• In general, customers have their own criteria for a problem. Therefore, it is important to understand the

symptom and status well enough by asking the customer about his/her concerns carefully. To systemize all
the information for the diagnosis, prepare the interview sheet referring to the interview points.

• In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.

Interview sheet sample

Interview sheet

Customer
name

MR/MS

Registration
number

Initial year
registration

Vehicle type

VIN

Storage date

Engine

Mileage

km (Mile)

Symptom

†

The steering wheel position (center) is in the wrong position.

†

4WAS warning lamp turns on.

†

Noise

†

Vibration

†

Others

(

)

First occurrence

†

Recently

†

Others (

)

Frequency of occurrence

†

Always

†

Under a certain conditions of

†

Sometimes (time(s)/day)

Climate con-
ditions

†

Irrelevant

Weather

†

Fine

†

Cloud

†

Rain

†

Snow

†

Others (

)

Temperature

†

Hot

†

Warm

†

Cool

†

Cold

†

Temperature (Approx.

°

C)

Relative humidity

†

High

†

Moderate

†

Low

Road conditions

†

Urban area

†

Suburb area

†

High way

†

Mounting road (uphill or down hill)

†

Rough road

Operation conditions, etc.

†

Irrelevant

†

When engine starts

†

During idling

†

During driving

†

During acceleration

†

At constant speed driving

†

During deceleration

†

During cornering (right curve or left curve)

†

During steering

STC-18

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

Other conditions

Memo

Interview sheet

Customer
name

MR/MS

Registration
number

Initial year
registration

Vehicle type

VIN

Storage date

Engine

Mileage

km (Mile)

Была ли эта страница вам полезна?
Да!Нет
8 посетителей считают эту страницу полезной.
Большое спасибо!
Ваше мнение очень важно для нас.

Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.

Текст

Политика конфиденциальности