Nissan Pathfinder (2008 year). Manual - part 87

BRC-2

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

35

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

35

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

35

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

35

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

36

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

36

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

37

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

37

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

37

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

37

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

38

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

38

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

40

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

40

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

40

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

40

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

41

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

42

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

43

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

43

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

43

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

43

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

44

C1120, C1122, C1124, C1126 IN ABS SOL  .....

45

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

45

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

45

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

45

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

46

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

47

C1121, C1123, C1125, C1127 OUT ABS SOL ...

48

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

48

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

48

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

48

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

49

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

50

C1130, C1131, C1132, C1133, C1136 EN-
GINE SIGNAL  ....................................................

51

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

51

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

51

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

51

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

51

C1140 ACTUATOR RLY  ...................................

53

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

53

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

53

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

53

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

54

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

54

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

55

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

55

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

55

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

55

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

57

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

57

C1143, C1144 STEERING ANGLE SENSOR ...

58

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

58

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

58

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

58

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

59

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

59

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

61

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

61

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

63

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

63

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

63

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

63

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

64

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

64

C1156 ST ANG SEN COM CIR  .........................

66

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

66

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

66

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

66

C1160 DECEL G SEN SET  ...............................

67

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

67

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

67

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

67

C1163 ST ANGLE SEN SAFE  ..........................

68

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

68

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

68

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

68

C1164, C1165, C1166, C1167 CV/SV SYS-
TEM ....................................................................

69

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

69

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

69

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

69

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

70

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

71

C1170 VARIANT CODING  ................................

72

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

72

C1178, C1181, C1184, C1189 ABS ACTIVE 
BOOSTER .........................................................

73

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

73

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

73

Diagnosis Procedure - VK56DE ..............................

73

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

74

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

75

C1179 ABS DELTA S SEN NG .........................

76

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

76

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

76

Diagnosis Procedure - VK56DE ..............................

76

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

77

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

77

BRC-3

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

78

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

78

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

78

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

78

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

78

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

79

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

79

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

79

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

79

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

80

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

81

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

81

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

81

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

81

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

82

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

82

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

82

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

82

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

83

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

83

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

83

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

83

SLIP INDICATOR LAMP  ....................................

84

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

84

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

84

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

84

ECU DIAGNOSIS .........................................

85

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

85

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

85

Wiring Diagram - Without HDC/HSA or VK56DE ....

90

Wiring Diagram - With VK56DE  ..............................

98

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

105

DTC No. Index  ......................................................

106

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

108

VDC/TCS/ABS ..................................................

108

Symptom Table  .....................................................

108

EXCESSIVE ABS FUNCTION OPERATION 
FREQUENCY ...................................................

109

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

109

UNEXPECTED PEDAL REACTION  ................

110

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

110

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

111

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

111

ABS FUNCTION DOES NOT OPERATE .........

112

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

112

PEDAL VIBRATION OR ABS OPERATION 
SOUND OCCURS  ............................................

113

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

113

VEHICLE JERKS DURING VDC/TCS/ABS 
CONTROL .......................................................

114

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

114

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

115

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

115

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

116

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

116

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

116

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

116

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

116

Precaution for CAN System ...................................

117

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

119

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

119

Special Service Tool ..............................................

119

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

120

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

121

WHEEL SENSORS  .........................................

121

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

121

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

122

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

122

ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ................................................................

123

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

123

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

125

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

125

G SENSOR ......................................................

126

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

126

HDC/HSA/VDC/TCS/ABS

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

127

DIAGNOSIS AND REPAIR WORKFLOW  ......

127

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

127

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

130

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

131

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT  ......................................................

131

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT : Description ...............................

131

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT : Special Repair Requirement ....

131

ADJUSTMENT OF STEERING ANGLE SENSOR 
NEUTRAL POSITION  ..............................................

131

BRC-4

ADJUSTMENT OF STEERING ANGLE SENSOR 
NEUTRAL POSITION : Description .......................

131

ADJUSTMENT OF STEERING ANGLE SENSOR 
NEUTRAL POSITION : Special Repair Require-
ment .......................................................................

131

CALIBRATION OF DECEL G SENSOR ..................

132

CALIBRATION OF DECEL G SENSOR : Descrip-
tion .........................................................................

132

CALIBRATION OF DECEL G SENSOR : Special 
Repair Requirement  ..............................................

132

FUNCTION DIAGNOSIS  ............................

134

VDC ..................................................................

134

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

134

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

135

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

136

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

137

TCS ..................................................................

138

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

138

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

138

ABS ..................................................................

139

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

139

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

139

EBD ..................................................................

140

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

140

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

140

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

141

CONSULT-III Function (ABS) ................................

141

COMPONENT DIAGNOSIS  .......................

146

C1101, C1102, C1103, C1104 WHEEL SEN-
SOR-1 ..............................................................

146

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

146

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

146

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

146

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

148

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

148

C1105, C1106, C1107, C1108 WHEEL SEN-
SOR-2 ..............................................................

149

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

149

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

149

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

149

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

151

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

151

C1109 POWER AND GROUND SYSTEM .......

152

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

152

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

152

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

152

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

153

C1110, C1170 ABS ACTUATOR AND ELEC-
TRIC UNIT (CONTROL UNIT)  ..........................

154

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

154

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

154

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

154

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

155

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

155

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

155

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

155

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

156

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

156

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

157

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

157

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

157

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

157

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

158

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

158

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

160

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

160

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

160

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

160

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

161

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

162

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

163

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

163

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

163

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

163

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

164

C1120, C1122, C1124, C1126 IN ABS SOL  ....

165

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

165

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

165

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

165

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

166

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

167

C1121, C1123, C1125, C1127 OUT ABS SOL ..

168

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

168

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

168

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

168

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

169

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

170

C1130, C1131, C1132, C1133, C1136 EN-
GINE SIGNAL ...................................................

171

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

171

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

171

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

171

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

171

C1140 ACTUATOR RLY  ..................................

173

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

173

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

173

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

173

BRC-5

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

174

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

174

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

175

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

175

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

175

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

175

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

177

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

177

C1143, C1144 STEERING ANGLE SENSOR ..

178

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

178

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

178

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

178

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

179

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

179

C1145, C1146 YAW RATE/SIDE G SENSOR ..

181

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

181

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

183

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

183

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

183

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

183

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

184

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

184

C1156 ST ANG SEN COM CIR  ........................

186

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

186

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

186

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

186

C1160 DECEL G SEN SET  ..............................

187

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

187

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

187

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

187

C1163 ST ANGLE SEN SAFE  .........................

188

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

188

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

188

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

188

C1164, C1165, C1166, C1167 CV/SV SYS-
TEM ..................................................................

189

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

189

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

189

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

189

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

190

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

191

C1170 VARIANT CODING  ...............................

192

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

192

C1178, C1181, C1184, C1189 ABS ACTIVE 
BOOSTER ........................................................

193

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

193

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

193

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

193

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

194

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

195

C1179 ABS DELTA S SEN NG  ......................

196

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

196

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

196

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

196

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

197

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

197

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

198

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

198

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

198

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

198

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

198

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

199

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

199

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

199

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

199

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

200

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

201

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

201

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

201

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

201

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

202

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

202

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

202

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

202

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

203

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

203

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

203

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

203

SLIP INDICATOR LAMP .................................

204

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

204

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

204

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

204

ECU DIAGNOSIS .......................................

205

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

205

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

205

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

210

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

217

DTC No. Index .......................................................

218

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

220

VDC/TCS/ABS ................................................

220

Symptom Table  .....................................................

220

EXCESSIVE ABS FUNCTION OPERATION 
FREQUENCY ..................................................

221

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

221

UNEXPECTED PEDAL REACTION  ...............

222

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

222

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

223

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

223

BRC-6

ABS FUNCTION DOES NOT OPERATE  ........

224

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

224

PEDAL VIBRATION OR ABS OPERATION 
SOUND OCCURS  ............................................

225

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

225

VEHICLE JERKS DURING VDC/TCS/ABS 
CONTROL ........................................................

226

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

226

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

227

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

227

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

228

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

228

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

228

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

228

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

228

Precaution for CAN System ...................................

229

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

231

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

231

Special Service Tool  .............................................

231

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

232

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

233

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

233

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

233

ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ..................................................................

234

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

234

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

236

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

236

WHEEL SENSORS ...........................................

237

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

237

G SENSOR  .......................................................

238

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

238

DIAGNOSIS AND REPAIR WORKFLOW

BRC-7

< BASIC INSPECTION >

[VDC/TCS/ABS]

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000001690790

PRECAUTIONS FOR DIAGNOSIS

If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit (con-
trol unit) or tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neutral posi-
tion of steering angle sensor before driving. Refer to 

BRC-11, "ADJUSTMENT OF STEERING ANGLE

SENSOR NEUTRAL POSITION : Description"

.

BRC-8

< BASIC INSPECTION >

[VDC/TCS/ABS]

DIAGNOSIS AND REPAIR WORKFLOW

OVERALL SEQUENCE

DETAILED FLOW

1.

COLLECT THE INFORMATION FROM THE CUSTOMER

Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using the diagnosis worksheet. Refer to 

BRC-10, "Diagnostic Work Sheet"

.

>> GO TO 2

JSFIA0010GB

DIAGNOSIS AND REPAIR WORKFLOW

BRC-9

< BASIC INSPECTION >

[VDC/TCS/ABS]

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2.

PERFORM THE SELF-DIAGNOSIS

Check the DTC display with the self-diagnosis function. Refer to 

BRC-21, "CONSULT-III Function (ABS)"

.

Is there any DTC displayed?

YES

>> GO TO 3

NO

>> GO TO 4

3.

PERFORM THE SYSTEM DIAGNOSIS

Perform the diagnosis applicable to the displayed DTC. Refer to 

BRC-106, "DTC No. Index"

.

>> GO TO 7

4.

CHECK THE SYMPTOM THAT IS NOT CONSIDERED A SYSTEM MALFUNCTION

Check that the symptom is a normal operation that is not considered a system malfunction. Refer to 

BRC-115,

"Description"

.

Is the symptom a normal operation?

YES

>> INSPECTION END

NO

>> GO TO 5

5.

CHECK THE WARNING LAMP AND INDICATOR LAMP FOR ILLUMINATION

Check that the warning lamp and indicator lamp illuminate.
• ABS warning lamp: Refer to 

BRC-81, "Description"

.

• Brake warning lamp: Refer to 

BRC-82, "Description"

.

• VDC OFF indicator lamp: Refer to 

BRC-83, "Description"

.

• SLIP indicator lamp: Refer to 

BRC-84, "Description"

.

Is ON/OFF timing normal?

YES

>> GO TO 6

NO

>> GO TO 2

6.

PERFORM THE DIAGNOSIS BY SYMPTOM

Perform the diagnosis applicable to the symptom. 

>> GO TO 7

7.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 8

8.

FINAL CHECK

Perform the self-diagnosis again, and check that the malfunction is repaired completely. After checking, erase
the self-diagnosis memory. Refer to 

BRC-21, "CONSULT-III Function (ABS)"

.

Is no other DTC present and the repair completed?

YES

>> INSPECTION END

NO

>> GO TO 3