Nissan Leaf. Manual - part 1127

SRS AIR BAG WARNING LAMP BLINKS

SRC-109

< SYMPTOM DIAGNOSIS >

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SRS AIR BAG WARNING LAMP BLINKS

Diagnosis Procedure

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1.

CHECK BATTERY

Check battery. Refer to 

PG-83, "How to Handle 12V Battery"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts.

2.

REPLACE OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

1. Replace occupant classification system control unit. Refer to 

SR-42, "Removal and Installation"

.

2. Check air bag warning lamp operation.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 3.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to 

SR-38, "Removal and Installation"

.

2. Check air bag warning lamp operation.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 1.

ST-1

STEERING

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SECTION 

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CONTENTS

STEERING SYSTEM

WITH HEATED STEERING WHEEL

PRECAUTION ...............................................

3

PRECAUTIONS ...................................................

3

Precaution for Technicians Using Medical Electric 

......

3

Point to Be Checked Before Starting Maintenance 
Work ..........................................................................

3

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

3

Precaution for Removing 12V Battery .......................

4

Service Notice or Precautions for Steering System 

......

4

PREPARATION ............................................

6

PREPARATION ...................................................

6

Special Service Tools ................................................

6

Commercial Service Tools  ........................................

6

SYSTEM DESCRIPTION  ..............................

8

COMPONENT PARTS  ........................................

8

HEATED STEERING WHEEL SYSTEM  .....................

8

HEATED STEERING WHEEL SYSTEM : Compo-
nent Parts Location  ...................................................

8

HEATED STEERING WHEEL SYSTEM : Heated 
Steering Wheel ..........................................................

9

HEATED STEERING WHEEL SYSTEM : Heated 
Steering Wheel Switch  ..............................................

9

HEATED STEERING WHEEL SYSTEM : Heated 
Steering Wheel Relay  ...............................................

9

HEATED STEERING WHEEL SYSTEM : A/C 
Auto Amp.  .................................................................

9

SYSTEM .............................................................

10

HEATED STEERING WHEEL SYSTEM  ...................

10

HEATED STEERING WHEEL SYSTEM : System 
Description ..............................................................

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WIRING DIAGRAM ......................................

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HEATED STEERING WHEEL ...........................

12

Wiring Diagram ........................................................

12

BASIC INSPECTION  ...................................

15

DIAGNOSIS AND REPAIR WORK FLOW  .......

15

Work Flow (Heated Steering Wheel)  .......................

15

STEERING WHEEL  ..........................................

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Inspection ................................................................

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DTC/CIRCUIT DIAGNOSIS  .........................

18

HEATED STEERING WHEEL SYSTEM ...........

18

Component Function Check  ....................................

18

Diagnosis Procedure  ...............................................

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Component Inspection (Heated Steering Wheel 
Switch) .....................................................................

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Component Inspection (Heated Steering Wheel) ....

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Component Inspection (Heated Steering Wheel 
Relay) ......................................................................

21

HEATED STEERING WHEEL SWITCH INDI-
CATOR LAMP ...................................................

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Component Function Check  ....................................

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Diagnosis Procedure  ...............................................

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Component Inspection (Heated Steering Wheel 
Switch) .....................................................................

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Component Inspection (Heated Steering Wheel 
Relay) ......................................................................

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SYMPTOM DIAGNOSIS  ..............................

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HEATED STEERING WHEEL SYSTEM DOES 
NOT ACTIVATE  ................................................

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Description ...............................................................

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Diagnosis Procedure  ...............................................

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HEATED STEERING WHEEL SWITCH INDI-
CATOR LAMP DOES NOT TURN ON ..............

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ST-2

Description ..............................................................

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Diagnosis Procedure  ..............................................

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NOISE, VIBRATION AND HARSHNESS 
(NVH) TROUBLESHOOTING ............................

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NVH Troubleshooting Chart  ...................................

31

PERIODIC MAINTENANCE ........................

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STEERING WHEEL  ...........................................

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Inspection ...............................................................

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REMOVAL AND INSTALLATION ...............

34

STEERING WHEEL  ...........................................

34

Exploded View ........................................................

34

Removal and Installation  ........................................

34

STEERING COLUMN  ........................................

35

Exploded View ........................................................

35

Removal and Installation  ........................................

35

Inspection ...............................................................

36

STEERING SHAFT  ............................................

38

Exploded View  ........................................................

38

Removal and Installation .........................................

38

Inspection ................................................................

39

STEERING GEAR AND LINKAGE  ...................

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Exploded View  ........................................................

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Removal and Installation .........................................

41

Disassembly and Assembly  ....................................

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Inspection ................................................................

44

HEATED STEERING WHEEL SWITCH ............

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Removal and Installation .........................................

46

SERVICE DATA AND SPECIFICATIONS 
(SDS) ..........................................................

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SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

47

General Specifications  ............................................

47

Steering Wheel  .......................................................

47

Steering Angle  ........................................................

47

Steering Column  .....................................................

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Steering Gear and Linkage  .....................................

47

PRECAUTIONS

ST-3

< PRECAUTION >

[WITH HEATED STEERING WHEEL]

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PRECAUTION

PRECAUTIONS

Precaution for Technicians Using Medical Electric

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OPERATION PROHIBITION

WARNING:

• Parts with strong magnet is used in this vehicle. 

• Technicians using a medical electric device such as pacemaker must never perform operation on the

vehicle, as magnetic field can affect the device function by approaching to such parts.

NORMAL CHARGE PRECAUTION

WARNING:

• If a technician uses a medical electric device such as an implantable cardiac pacemaker or an

implantable cardioverter defibrillator, the possible effects on the devices must be checked with the

device manufacturer before starting the charge operation.

• As radiated electromagnetic wave generated by PDM (Power Delivery Module) at normal charge

operation may affect medical electric devices, a technician using a medical electric device such as

implantable cardiac pacemaker or an implantable cardioverter defibrillator must not approach motor

room [PDM (Power Delivery Module)] at the hood-opened condition during normal charge operation.

PRECAUTION AT TELEMATICS SYSTEM OPERATION

WARNING:

• If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD),

avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from inte-

rior/exterior antenna.

• The electromagnetic wave of TCU might affect the function of the implantable cardiac pacemaker or

the implantable cardioverter defibrillator (ICD), when using the service, etc.

• If a technician uses other medical electric devices than implantable cardiac pacemaker or implant-

able cardioverter defibrillator (ICD), the electromagnetic wave of TCU might affect the function of the

device. The possible effects on the devices must be checked with the device manufacturer before

TCU use.

PRECAUTION AT INTELLIGENT KEY SYSTEM OPERATION

WARNING:

• If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD),

avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from inte-

rior/exterior antenna.

• The electromagnetic wave of Intelligent Key might affect the function of the implantable cardiac

pacemaker or the implantable cardioverter defibrillator (ICD), at door operation, at each request

switch operation, or at engine starting.

• If a technician uses other medical electric devices than implantable cardiac pacemaker or implant-

able cardioverter defibrillator (ICD), the electromagnetic wave of Intelligent Key might affect the

function of the device. The possible effects on the devices must be checked with the device manu-

facturer before Intelligent Key use.

Point to Be Checked Before Starting Maintenance Work

INFOID:0000000010119069

The high voltage system may starts automatically. It is required to check that the timer air conditioner

and timer charge (during EVSE connection) are not set before starting maintenance work.

NOTE:

If the timer air conditioner or timer charge (during EVSE connection) is set, the high voltage system starts

automatically even when the power switch is in OFF state.

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

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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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS