Nissan Leaf. Manual - part 303

 

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Nissan Leaf. Manual - part 303

 

 

BRC-2

DTC Inspection Priority Chart .................................

55

DTC Index  ..............................................................

56

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

58

BRAKE CONTROL SYSTEM  ............................

58

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

58

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

66

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

66

Work Flow ...............................................................

66

Diagnostic Work Sheet  ...........................................

67

ADDITIONAL SERVICE WHEN REPLACING 
ABS ACTUATOR AND ELECTRIC UNIT 
(CONTROL UNIT) ..............................................

69

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

69

ADJUSTMENT OF STEERING ANGLE SEN-
SOR NEUTRAL POSITION  ...............................

70

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

70

Work Procedure ......................................................

70

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

73

C1101, C1102, C1103, C1104 WHEEL SEN-
SOR ....................................................................

73

DTC Logic ...............................................................

73

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

73

C1105, C1106, C1107, C1108 WHEEL SEN-
SOR ....................................................................

77

DTC Logic ...............................................................

77

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

77

C1109 POWER AND GROUND SYSTEM .........

79

DTC Logic ...............................................................

79

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

79

C1110 ABS ACTUATOR AND ELECTRIC 
UNIT (CONTROL UNIT)  ....................................

81

DTC Logic ...............................................................

81

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

81

C1111 ABS MOTOR, MOTOR RELAY SYS-
TEM ....................................................................

82

DTC Logic ...............................................................

82

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

82

C1113, C1145, C1146 YAW RATE/SIDE/DE-
CEL G SENSOR  ................................................

85

DTC Logic ...............................................................

85

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

85

C1115 WHEEL SENSOR ...................................

89

DTC Logic ...............................................................

89

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

89

C1116 STOP LAMP SWITCH ............................

96

DTC Logic ...............................................................

96

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

96

Component Inspection  ..........................................

100

C1120, C1122, C1124, C1126 ABS IN VALVE 
SYSTEM ...........................................................

101

DTC Logic  .............................................................

101

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

101

C1121, C1123, C1125, C1127 ABS OUT 
VALVE SYSTEM  ..............................................

103

DTC Logic  .............................................................

103

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

103

C1140 ACTUATOR RELAY SYSTEM  .............

105

DTC Logic  .............................................................

105

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

105

C1142 PRESS SENSOR  ..................................

107

DTC Logic  .............................................................

107

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

107

C1143 STEERING ANGLE SENSOR  ..............

110

DTC Logic  .............................................................

110

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

110

C1144 INCOMPLETE STEERING ANGLE 
SENSOR ADJUSTMENT  .................................

113

DTC Logic  .............................................................

113

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

113

C1155 BRAKE FLUID LEVEL SWITCH  ..........

115

DTC Logic  .............................................................

115

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

115

Component Inspection  ..........................................

118

C1164, C1165 CV SYSTEM  .............................

119

DTC Logic  .............................................................

119

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

119

C1166, C1167 SV SYSTEM  .............................

121

DTC Logic  .............................................................

121

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

121

C1176 STOP LAMP SW2 .................................

123

DTC Logic  .............................................................

123

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

123

Component Inspection  ..........................................

127

C118A ELECTRICALLY-DRIVEN INTELLI-
GENT BRAKE SYSTEM ...................................

128

DTC Logic  .............................................................

128

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

128

C118C EV SYSTEM  .........................................

130

DTC Logic  .............................................................

130

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

130

U1000 CAN COMM CIRCUIT ...........................

132

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

132

DTC Logic  .............................................................

132

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

132

U1010 CONTROL UNIT (CAN)  ........................

133

BRC-3

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

133

DTC Logic  .............................................................

133

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

133

U110D ELECTRICALLY-DRIVEN INTELLI-
GENT BRAKE COMMUNICATION ..................

134

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

134

DTC Logic  .............................................................

134

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

134

POWER SUPPLY AND GROUND CIRCUIT ....

137

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

137

VDC OFF SWITCH  ...........................................

140

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

140

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

140

Component Inspection  ..........................................

141

PARKING BRAKE SWITCH  ............................

142

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

142

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

142

Component Inspection  ..........................................

142

ABS WARNING LAMP .....................................

144

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

144

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

144

BRAKE WARNING LAMP ...............................

145

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

145

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

145

VDC WARNING LAMP .....................................

147

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

147

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

147

VDC OFF INDICATOR LAMP  ..........................

148

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

148

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

148

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

149

EXCESSIVE OPERATION FREQUENCY ........

149

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

149

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

149

UNEXPECTED BRAKE PEDAL REACTION ...

151

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

151

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

151

THE BRAKING DISTANCE IS LONG ..............

152

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

152

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

152

DOES NOT OPERATE .....................................

153

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

153

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

153

BRAKE PEDAL VIBRATION OR OPERA-
TION SOUND OCCURS ..................................

154

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

154

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

154

VEHICLE JERKS DURING  .............................

155

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

155

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

155

THE DRIVING WHEELS SKID GREATLY ON 
ACCELERATION  ............................................

156

System Description ................................................

156

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

156

NORMAL OPERATING CONDITION  .............

157

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

157

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

158

WHEEL SENSOR ............................................

158

FRONT WHEEL SENSOR  .......................................

158

FRONT WHEEL SENSOR : Exploded View  .........

158

FRONT WHEEL SENSOR : Removal and Instal-
lation ......................................................................

158

REAR WHEEL SENSOR  .........................................

159

REAR WHEEL SENSOR : Exploded View ............

159

REAR WHEEL SENSOR : Removal and Installa-
tion .........................................................................

159

SENSOR ROTOR ............................................

161

FRONT SENSOR ROTOR  .......................................

161

FRONT SENSOR ROTOR : Removal and Instal-
lation ......................................................................

161

REAR SENSOR ROTOR  .........................................

161

REAR SENSOR ROTOR : Removal and Installa-
tion .........................................................................

161

ABS ACTUATOR AND ELECTRIC UNIT 
(CONTROL UNIT)  ...........................................

162

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

162

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

162

YAW RATE/SIDE/DECEL G SENSOR  ...........

164

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

164

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

164

STEERING ANGLE SENSOR .........................

165

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

165

VDC OFF SWITCH ..........................................

166

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

166

BRC-4

< PRECAUTION >

[WITH VDC]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Technicians Using Medical Electric

INFOID:0000000010120010

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:0000000010120011

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"

INFOID:0000000010120012

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

PRECAUTIONS

BRC-5

< PRECAUTION >

[WITH VDC]

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system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

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.

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

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion 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 three minutes before performing any service.

Precaution for Removing 12V Battery

INFOID:0000000010120013

1. Check that EVSE is not connected.

NOTE:

If EVSE is connected, the air conditioning system may be automatically activated by the timer A/C func-

tion.

2. Turn the power switch OFF 

→ ON → OFF. Get out of the vehicle. Close all doors (including back door).

3. Check that the charge status indicator lamp does not blink and wait for 5 minutes or more.

NOTE:

 If the battery is removed within 5 minutes after the power switch is turned OFF, plural DTCs may be

detected.

4. Remove 12V battery within 1 hour after turning the power switch OFF 

→ ON → OFF.

NOTE:

•  The 12V battery automatic charge control may start automatically even when the power switch is in

OFF state.

•  Once the power switch is turned ON 

→ OFF, the 12V battery automatic charge control does not start for

approximately 1 hour.

CAUTION:

•  After all doors (including back door) are closed, if a door (including back door) is opened before

battery terminals are disconnected, start over from Step 1.

•  After turning the power switch OFF, if “Remote A/C” is activated by user operation, stop the air

conditioner and start over from Step 1.

Precaution for Procedure without Cowl Top Cover

INFOID:0000000010120014

When performing the procedure after removing cowl top cover, cover

the lower end of windshield with urethane, etc to prevent damage to

windshield.

PIIB3706J

 

 

 

 

 

 

 

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