Nissan Quest E52. Manual - part 227

BRC-1

BRAKES

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SECTION 

BRC

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B

BRC

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CONTENTS

BRAKE CONTROL SYSTEM

WITH VDC

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

4

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

4

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

4

Precaution for Procedure without Cowl Top Cover 

......

4

Precautions for Removing Battery Terminal  .............

5

Precaution for Brake System  ....................................

5

Precaution for Brake Control System ........................

5

Precaution for Harness Repair ..................................

7

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

8

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

8

Commercial Service Tool  ..........................................

8

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

9

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

9

Component Parts Location ........................................

9

ABS Actuator and Electric Unit (Control Unit)  .........

10

Wheel Sensor and Sensor Rotor  ............................

11

Stop Lamp Switch  ...................................................

11

Steering Angle Sensor  ............................................

11

Yaw Rate/Side G Sensor  ........................................

11

Brake Fluid Level Switch .........................................

12

VDC OFF Switch  .....................................................

12

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

13

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

13

Circuit Diagram  .......................................................

20

Fail-safe ..................................................................

20

VDC FUNCTION  ........................................................

21

VDC FUNCTION : System Description  ...................

21

TCS FUNCTION  ........................................................

23

TCS FUNCTION : System Description  ...................

24

ABS FUNCTION  ........................................................

25

ABS FUNCTION : System Description ....................

25

EBD FUNCTION  ........................................................

27

EBD FUNCTION : System Description ....................

27

BRAKE LIMITED SLIP DIFFERENTIAL (BLSD) 
FUNCTION .................................................................

28

BRAKE LIMITED SLIP DIFFERENTIAL (BLSD) 
FUNCTION : System Description  ............................

28

DIAGNOSIS SYSTEM [ABS ACTUATOR 
AND ELECTRIC UNIT (CONTROL UNIT)]  .......

30

CONSULT Function .................................................

30

ECU DIAGNOSIS INFORMATION ..............

35

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

35

Reference Value ......................................................

35

Fail-safe ...................................................................

37

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

37

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

38

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

40

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

40

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

40

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

45

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

45

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

45

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

46

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

48

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

48

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

49

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

49

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

49

BRC-2

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

51

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

51

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

51

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

51

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

54

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

54

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

54

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

59

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

59

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

59

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

61

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

61

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

61

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

62

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

62

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

62

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

64

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

64

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

64

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

70

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

70

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

70

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

71

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

73

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

73

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

73

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

75

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

75

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

75

C1130 ENGINE SIGNAL  ...................................

77

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

77

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

77

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

78

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

78

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

78

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

80

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

80

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

80

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

82

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

82

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

82

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

85

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

85

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

85

C1145, C1146 YAW RATE/SIDE G SENSOR ...

86

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

86

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

86

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

89

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

89

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

89

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

91

C1161 INCOMPLETE SIDE G SENSOR CAL-
IBRATION ..........................................................

92

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

92

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

92

C1162 INCOMPLETE PRESSURE SENSOR 
CALIBRATION ..................................................

93

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

93

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

93

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

94

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

94

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

94

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

96

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

96

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

96

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

98

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

98

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

98

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

98

U1002 SYSTEM COMM (CAN)  .........................

99

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

99

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

99

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

99

POWER SUPPLY AND GROUND CIRCUIT  ....

101

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

101

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

104

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

104

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

104

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

104

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

106

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

106

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

106

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

107

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

108

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

108

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

108

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

109

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

109

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

109

BRC-3

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BRC

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

110

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

110

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

110

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

111

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

111

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

111

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

112

EXCESSIVE OPERATION FREQUENCY ........

112

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

112

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

112

UNEXPECTED BRAKE PEDAL REACTION ...

113

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

113

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

113

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

114

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

114

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

114

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

115

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

115

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

115

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

116

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

116

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

116

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

117

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

117

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

117

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

118

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

118

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

119

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

119

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

119

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

119

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

119

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

120

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

120

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

120

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

122

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

122

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

122

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

122

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

122

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

123

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

123

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

123

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

125

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

125

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

125

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

126

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

126

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

127

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

127

BRC-4

< PRECAUTION >

[WITH VDC]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000009651343

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
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 “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:0000000009651344

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

PIIB3706J