2007 NISSAN TIIDA Service Repair Manual

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Page 4905 of 5883

NISSAN TIIDA 2007 Service Repair Manual EPS WARNING LAMP DOES NOT TURN OFF
STC-31
< SYMPTOM DIAGNOSIS >[EPS]
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EPS WARNING LAMP DOES NOT TURN OFF
Diagnosis ProcedureINFOID:0000000001697734
SYMPTOM:
EPS warnin

Page 4906 of 5883

NISSAN TIIDA 2007 Service Repair Manual STC-32
< SYMPTOM DIAGNOSIS >[EPS]
EPS WARNING LAMP DOES NOT TURN OFF
3. Check continuity between EPS control unit harness connector
M54 terminal 18 and ground.
Also check harness for short to power.
4

Page 4907 of 5883

NISSAN TIIDA 2007 Service Repair Manual STEERING WHEEL TURNING FORCE IS HEAVY OR LIGHT
STC-33
< SYMPTOM DIAGNOSIS >[EPS]
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STEERING WHEEL TURNING FORCE IS HEAVY OR LIGHT
Diagnosis ProcedureINFOID:0000000001697

STEERING WHEEL TURNING FORCE IS HEAVY OR LIGHT
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STEERING WHEEL TURNING FORCE IS HEAVY OR LIGHT
Diagnosis ProcedureINFOID:0000000001697735
SYMPTOM:
Steering wheel turning force is heavy or light, while driving.
DIAGNOSTIC PROCEDURE
1.CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to STC-7, "
CONSULT-III Function (EPS)".
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to STC-21, "Diagnosis Procedure".
NO >> GO TO 2.
2.CHECK VEHICLE SPEED SIGNAL
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-25, "
CONSULT-III
Function (ABS)" (with ABS) or BRC-105, "CONSULT-III Function (ABS)" (with ESP).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 3.
3.CHECK COMBINATION METER SIGNAL
Perform self-diagnosis with combination meter. Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 4.
4.CHECK ENGINE STATUS SIGNAL
Perform self-diagnosis for ECM. Refer to EC-107, "
CONSULT-III Function" (HR16DE with EURO-OBD), EC-
462, "CONSULT-III Function" (HR16DE without EURO-OBD), EC-772, "CONSULT-III Function" (MR18DE),
EC-1104, "
Diagnosis Description" (K9K).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 5.
5.CHECK EPS MOTOR SYSTEM
Perform trouble diagnosis for EPS motor. Refer to STC-13, "
Diagnosis Procedure".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to STC-22, "
EPS Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 7.
NG >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
7.SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Check the steering wheel turning force because there may be mechanical malfunction. Refer to
ST-6, "
On-Vehicle Inspection and Service".

Page 4908 of 5883

NISSAN TIIDA 2007 Service Repair Manual STC-34
< SYMPTOM DIAGNOSIS >[EPS]
UNBALANCE STEERING WHEEL TURNING FORCE AND RETURN BETWEEN
RIGHT AND LEFT
UNBALANCE STEERING WHEEL TURNING FORCE AND RETURN BE-
TWEEN RIGHT AND LEFT
Diagnosis Procedu

Page 4909 of 5883

NISSAN TIIDA 2007 Service Repair Manual UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)
STC-35
< SYMPTOM DIAGNOSIS >[EPS]
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UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIA-
TION)
Diagnosis Proce

Page 4910 of 5883

NISSAN TIIDA 2007 Service Repair Manual STC-36
< PRECAUTION >[EPS]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001697712
The Supplemental Restr

STC-36
< PRECAUTION >[EPS]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001697712
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 SR and SB section of
this Service Manual.
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 SR section.
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.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000001716731
NOTE:
This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.
Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Service Notice or Precaution for EPS SystemINFOID:0000000001697713
CAUTION:
Check or confirm 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
malfunction, such as EPS warning lamp turns ON, occurs.
Check if air pressure and size of tires are proper, the specified part is used for the steering wheel,
and control unit is genuine part.

Page 4911 of 5883

NISSAN TIIDA 2007 Service Repair Manual PRECAUTIONS
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Check if the connection of steering column assembly and steering gear assembly is proper (there is
not looseness of mounting b

Page 4912 of 5883

NISSAN TIIDA 2007 Service Repair Manual STR-1
ENGINE
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SECTION STR
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CONTENTS
STARTING SYSTEM
HR16DE
BASIC INSPECTION ....................................
3
DIAGNOSIS AND REPAIR WORKFLOW ..........3
Work Flow

STR-1
ENGINE
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SECTION STR
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CONTENTS
STARTING SYSTEM
HR16DE
BASIC INSPECTION ....................................
3
DIAGNOSIS AND REPAIR WORKFLOW ..........3
Work Flow .................................................................3
FUNCTION DIAGNOSIS ...............................6
STARTING SYSTEM ...........................................6
System Diagram ........................................................6
System Description ...................................................6
Component Parts Location ........................................6
Component Description ............................................7
COMPONENT DIAGNOSIS ..........................8
B TERMINAL CIRCUIT .......................................8
Description ................................................................8
Diagnosis Procedure .................................................8
S CONNECTOR CIRCUIT ...................................9
Description ................................................................9
Diagnosis Procedure .................................................9
STARTING SYSTEM ..........................................10
Wiring Diagram .......................................................10
SYMPTOM DIAGNOSIS ..............................11
STARTING SYSTEM ..........................................11
Symptom Table .......................................................11
PRECAUTION ..............................................12
PRECAUTIONS ..................................................12
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
12
ON-VEHICLE REPAIR .................................13
STARTER MOTOR .............................................13
Removal and Installation .........................................13
MR18DE
BASIC INSPECTION ...................................
14
DIAGNOSIS AND REPAIR WORKFLOW ........14
Work Flow ................................................................14
FUNCTION DIAGNOSIS ..............................17
STARTING SYSTEM .........................................17
System Diagram ......................................................17
System Description ..................................................17
Component Parts Location ......................................17
Component Description ..........................................18
COMPONENT DIAGNOSIS .........................19
B TERMINAL CIRCUIT .....................................19
Description ...............................................................19
Diagnosis Procedure ...............................................19
S CONNECTOR CIRCUIT .................................20
Description ...............................................................20
Diagnosis Procedure ...............................................20
STARTING SYSTEM .........................................21
Wiring Diagram ........................................................21
SYMPTOM DIAGNOSIS ..............................22
STARTING SYSTEM .........................................22
Symptom Table .......................................................22
PRECAUTION ..............................................23
PRECAUTIONS .................................................23
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
23
ON-VEHICLE REPAIR .................................24

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