Infiniti FX35, FX50 (S51). Manual - part 295

BRM-58

< REMOVAL AND INSTALLATION >

REPLACEMENT OPERATIONS

: Vehicle front

Replacement parts

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Rear side member extension (LH)

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CRUISE CONTROL

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SECTION 

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CONTENTS

CRUISE CONTROL SYSTEM

ICC (FULL SPEED RANGE)

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

11

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

11

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

11

INSPECTION AND ADJUSTMENT ....................

13

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (ICC SENSOR INTEGRATED 
UNIT) ..........................................................................

13

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (ICC SENSOR INTEGRATED 
UNIT) : Description ..................................................

13

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (ICC SENSOR INTEGRATED 
UNIT) : Special Repair Requirement .......................

13

LASER BEAM AIMING ADJUSTMENT  ....................

13

LASER BEAM AIMING ADJUSTMENT : Descrip-
tion ..........................................................................

13

LASER BEAM AIMING ADJUSTMENT : Special 
Repair Requirement (Preparation)  ..........................

14

LASER BEAM AIMING ADJUSTMENT : Special 
Repair Requirement (Setting The ICC Target 
Board) .....................................................................

14

LASER BEAM AIMING ADJUSTMENT : Special 
Repair Requirement (Laser Beam Aiming Adjust-
ment) .......................................................................

17

ACTION TEST  ...........................................................

18

ACTION TEST : Description  ...................................

18

ACTION TEST : Special Repair Requirement (Ve-
hicle-To-Vehicle Distance Control Mode) ................

18

ACTION TEST : Special Repair Requirement 
[Conventional (Fixed Speed) Cruise Control 
Mode] ......................................................................

21

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

24

ICC (FULL SPEED RANGE)  ..............................

24

System Diagram  ......................................................

24

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

24

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

27

Component Description  ...........................................

28

VEHICLE-TO-VEHICLE DISTANCE CON-
TROL MODE FUNCTION ..................................

29

System Diagram  ......................................................

29

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

29

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

36

Component Description  ...........................................

37

CONVENTIONAL (FIXED SPEED) CRUISE 
CONTROL MODE FUNCTION ..........................

38

System Diagram  ......................................................

38

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

38

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

42

Component Description  ...........................................

43

DIAGNOSIS SYSTEM (ICC SENSOR INTE-
GRATED UNIT)  .................................................

44

Diagnosis Description ..............................................

44

CONSULT-III Function (ICC) ...................................

45

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

53

C1A00 CONTROL UNIT  ...................................

53

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

53

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

53

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

53

Special Repair Requirement ....................................

53

C1A01 POWER SUPPLY CIRCUIT 1, C1A02 
POWER SUPPLY CIRCUIT 2  ...........................

55

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

55

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

55

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

55

Special Repair Requirement ....................................

55

C1A03 VEHICLE SPEED SENSOR ..................

57

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

57

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

57

CCS-2

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

57

Special Repair Requirement ...................................

58

C1A04 ABS/TCS/VDC SYSTEM  .......................

59

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

59

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

59

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

59

Special Repair Requirement ...................................

59

C1A05 BRAKE SW/STOP LAMP SW  ...............

61

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

61

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

61

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

61

Component Inspection (ICC Brake Switch)  ............

64

Component Inspection (Stop Lamp Switch)  ...........

64

Special Repair Requirement ...................................

65

C1A06 OPERATION SW  ...................................

66

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

66

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

66

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

66

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

67

Special Repair Requirement ...................................

68

C1A08 PRESSURE SENSOR  ...........................

69

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

69

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

69

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

69

Special Repair Requirement ...................................

70

C1A09 BOOSTER SOLENOID ..........................

71

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

71

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

71

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

71

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

72

Special Repair Requirement ...................................

72

C1A10 RELEASE SWITCH  ...............................

74

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

74

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

74

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

74

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

75

Special Repair Requirement ...................................

76

C1A11 PRESSURE CONTROL .........................

77

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

77

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

77

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

77

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

78

Special Repair Requirement ...................................

78

C1A12 LASER BEAM OFF CENTER  ...............

80

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

80

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

80

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

80

Special Repair Requirement ...................................

80

C1A13 STOP LAMP RELAY  .............................

81

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

81

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

81

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

81

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

86

Special Repair Requirement  ...................................

87

C1A14 ECM  .......................................................

88

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

88

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

88

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

88

Special Repair Requirement  ...................................

88

C1A15 GEAR POSITION  ..................................

90

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

90

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

90

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

90

Special Repair Requirement  ...................................

91

C1A16 RADAR STAIN ......................................

93

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

93

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

93

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

93

Special Repair Requirement  ...................................

93

C1A18 LASER AIMING INCMP  ........................

95

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

95

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

95

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

95

Special Repair Requirement  ...................................

95

C1A21 UNIT HIGH TEMP ..................................

97

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

97

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

97

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

97

Special Repair Requirement  ...................................

97

C1A22 BCU CIRCUIT ........................................

99

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

99

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

99

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

99

Special Repair Requirement  .................................

102

C1A24 NP RANGE  ...........................................

103

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

103

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

103

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

103

Special Repair Requirement  .................................

104

C1A28 BCU POWER SUPPLY CIRCUIT, 
C1A29 BCU POWER SUPPLY CIRCUIT2 .......

105

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

105

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

105

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

105

Special Repair Requirement  .................................

105

C1A30 BCU CAN COMM CIRC  .......................

107

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

107

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

107

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

107

Special Repair Requirement  .................................

107

C1A31 BCU INTERNAL MALF  ........................

108

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

108

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

108

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

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Special Repair Requirement  .................................

108

C1A32 IBA FLAG STUCK  ...............................

110

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

110

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

110

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

110

Special Repair Requirement  .................................

110

C1A33 CAN TRANSMISSION ERROR  ...........

112

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

112

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

112

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

112

Special Repair Requirement  .................................

112

C1A34 COMMAND ERROR .............................

114

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

114

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

114

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

114

Special Repair Requirement  .................................

114

C1A39 STEERING ANGLE SENSOR ..............

116

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

116

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

116

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

116

Special Repair Requirement  .................................

116

C1A40 SYSTEM SWITCH CIRCUIT  ................

118

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

118

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

118

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

118

Component Inspection (IBA OFF Switch)  .............

119

Special Repair Requirement  .................................

120

U0121 VDC CAN 2  ...........................................

121

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

121

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

121

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

121

Special Repair Requirement  .................................

121

U0126 STRG SEN CAN 1  ................................

123

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

123

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

123

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

123

Special Repair Requirement  .................................

123

U0129 BCU CAN 2 ...........................................

125

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

125

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

125

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

125

Special Repair Requirement  .................................

125

U0401 ECM CAN 1 ...........................................

127

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

127

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

127

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

127

Special Repair Requirement  .................................

127

U0402 TCM CAN 1 ...........................................

129

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

129

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

129

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

129

Special Repair Requirement ..................................

129

U0415 VDC CAN 1 ..........................................

131

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

131

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

131

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

131

Special Repair Requirement ..................................

131

U0418 BCU CAN 1 ..........................................

133

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

133

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

133

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

133

Special Repair Requirement ..................................

133

U0428 STRG SEN CAN 2  ...............................

135

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

135

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

135

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

135

Special Repair Requirement ..................................

135

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

137

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

137

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

137

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

137

Special Repair Requirement ..................................

137

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

139

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

139

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

139

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

139

Special Repair Requirement ..................................

139

POWER SUPPLY AND GROUND CIRCUIT  ..

140

ICC SENSOR INTEGRATED UNIT  .........................

140

ICC SENSOR INTEGRATED UNIT : Diagnosis 
Procedure ..............................................................

140

BRAKE BOOSTER CONTROL UNIT  ......................

140

BRAKE BOOSTER CONTROL UNIT : Diagnosis 
Procedure ..............................................................

140

ICC WARNING CHIME CIRCUIT  ....................

142

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

142

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

142

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

142

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

143

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

144

ICC SENSOR INTEGRATED UNIT .................

144

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

144

Wiring Diagram - INTELLIGENT CRUISE CON-
TROL (FULL SPEED RANGE) - ............................

148

Fail-Safe ................................................................

161

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

161

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

162

BRAKE BOOSTER CONTROL UNIT  .............

165

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

165