Nissan Qashqai (2007-2010). Manual — part 1494

LAN

LAN-1

ELECTRICAL & POWER CONTROL

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SECTION

LAN

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CONTENTS

LAN SYSTEM

CAN FUNDAMENTAL

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

36

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

36

Precautions for Trouble Diagnosis . . . . . . ..

36

Precautions for Harness Repair . . . . . . . ..

36

FUNCTION DIAGNOSIS . . . . . . . ..

37

CAN COMMUNICATION SYSTEM . . . . .

37

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

37

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

37

CAN Communication Control Circuit . . . . . ...

38

DIAG ON CAN . . . . . . . . . . . . .

39

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

39

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

39

TROUBLE DIAGNOSIS . . . . . . . . . .

40

Condition of Error Detection . . . . . . . . .

40

Symptom When Error Occurs in CAN Communi-
cation System . . . . . . . . . . . . . . ..

40

CAN Diagnosis with CONSULT-III . . . . . . ..

43

Self-Diagnosis . . . . . . . . . . . . . . .

43

CAN Diagnostic Support Monitor . . . . . . .

43

How to Use CAN Communication Signal Chart . ..

45

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

46

DIAGNOSIS AND REPAIR WORKFLOW . . .

46

Trouble Diagnosis Flow Chart . . . . . . . . .

46

Trouble Diagnosis Procedure . . . . . . . . ..

46

CAN

HOW TO USE THIS MANUAL . . . . . .

51

HOW TO USE THIS SECTION . . . . . . ...

51

Caution . . . . . . . . . . . . . . . . .

51

Abbreviation List . . . . . . . . . . . . . ..

51

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

52

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

52

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

52

Precautions for Trouble Diagnosis . . . . . . ..

52

Precautions for Harness Repair . . . . . . . ..

52

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

54

DIAGNOSIS AND REPAIR WORKFLOW . .

54

Interview Sheet . . . . . . . . . . . . . .

54

FUNCTION DIAGNOSIS . . . . . . . ..

55

CAN COMMUNICATION SYSTEM . . . . ...

55

CAN System Specification Chart . . . . . . . .

55

CAN Communication Signal Chart . . . . . . ..

59

COMPONENT DIAGNOSIS . . . . . . .

62

CAN COMMUNICATION SYSTEM . . . . ...

62

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

62

Wiring Diagram - CAN SYSTEM (LHD MODELS)
- . . . . . . . . . . . . . . . . . . . ...

64

Wiring Diagram - CAN SYSTEM (RHD MODELS)
- . . . . . . . . . . . . . . . . . . . ...

68

MALFUNCTION AREA CHART . . . . . .

72

Main Line . . . . . . . . . . . . . . . . .

72

Branch Line . . . . . . . . . . . . . . . .

72

Short Circuit . . . . . . . . . . . . . . . .

72

MAIN LINE BETWEEN ABS AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

73

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

73

MAIN LINE BETWEEN ABS AND TCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

74

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

74

MAIN LINE BETWEEN TCM AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

75

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

75

LAN-2

MAIN LINE BETWEEN BCM AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ...

76

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

76

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ...

77

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

77

MAIN LINE BETWEEN TCM AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ...

78

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

78

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ...

79

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

79

ECM BRANCH LINE CIRCUIT . . . . . . ..

80

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

80

ABS BRANCH LINE CIRCUIT . . . . . . ..

81

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

81

TCM BRANCH LINE CIRCUIT . . . . . . ..

82

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

82

4WD BRANCH LINE CIRCUIT . . . . . . ..

83

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

83

BCM BRANCH LINE CIRCUIT . . . . . . ..

84

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

84

M&A BRANCH LINE CIRCUIT . . . . . . ..

85

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

85

AV BRANCH LINE CIRCUIT . . . . . . . .

86

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

86

DLC BRANCH LINE CIRCUIT . . . . . . ...

87

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

87

EPS BRANCH LINE CIRCUIT . . . . . . ...

88

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

88

I-KEY BRANCH LINE CIRCUIT . . . . . .

89

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

89

STRG BRANCH LINE CIRCUIT . . . . . .

90

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

90

IPDM-E BRANCH LINE CIRCUIT . . . . . .

91

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

91

CAN COMMUNICATION CIRCUIT . . . . .

92

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

92

CAN SYSTEM (TYPE 1)

COMPONENT DIAGNOSIS . . . . . .

94

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ...

94

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

94

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ...

95

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

95

ECM BRANCH LINE CIRCUIT . . . . . . ..

96

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

96

ABS BRANCH LINE CIRCUIT . . . . . . ..

97

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

97

BCM BRANCH LINE CIRCUIT . . . . . . ..

98

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

98

M&A BRANCH LINE CIRCUIT . . . . . . ..

99

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

99

DLC BRANCH LINE CIRCUIT . . . . . . .

100

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

100

EPS BRANCH LINE CIRCUIT . . . . . . ..

101

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

101

IPDM-E BRANCH LINE CIRCUIT . . . . .

102

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

102

CAN COMMUNICATION CIRCUIT . . . . ..

103

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

103

CAN SYSTEM (TYPE 2)

COMPONENT DIAGNOSIS . . . . . ..

105

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ..

105

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

105

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

106

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

106

ECM BRANCH LINE CIRCUIT . . . . . . .

107

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

107

ABS BRANCH LINE CIRCUIT . . . . . . .

108

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

108

BCM BRANCH LINE CIRCUIT . . . . . . .

109

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

109

M&A BRANCH LINE CIRCUIT . . . . . . .

110

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

110

AV BRANCH LINE CIRCUIT . . . . . . .

111

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

111

DLC BRANCH LINE CIRCUIT . . . . . . .

112

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

112

EPS BRANCH LINE CIRCUIT . . . . . . ..

113

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

113

IPDM-E BRANCH LINE CIRCUIT . . . . .

114

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

114

LAN

LAN-3

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CAN COMMUNICATION CIRCUIT . . . . ..

115

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

115

CAN SYSTEM (TYPE 3)

COMPONENT DIAGNOSIS . . . . . ...

117

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ..

117

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

117

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

118

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

118

ECM BRANCH LINE CIRCUIT . . . . . . .

119

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

119

ABS BRANCH LINE CIRCUIT . . . . . . .

120

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

120

BCM BRANCH LINE CIRCUIT . . . . . .

121

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

121

M&A BRANCH LINE CIRCUIT . . . . . .

122

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

122

DLC BRANCH LINE CIRCUIT . . . . . . .

123

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

123

EPS BRANCH LINE CIRCUIT . . . . . . .

124

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

124

I-KEY BRANCH LINE CIRCUIT . . . . . ...

125

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

125

IPDM-E BRANCH LINE CIRCUIT . . . . .

126

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

126

CAN COMMUNICATION CIRCUIT . . . . ..

127

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

127

CAN SYSTEM (TYPE 4)

COMPONENT DIAGNOSIS . . . . . ...

129

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ..

129

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

129

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

130

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

130

ECM BRANCH LINE CIRCUIT . . . . . . .

131

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

131

ABS BRANCH LINE CIRCUIT . . . . . . .

132

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

132

BCM BRANCH LINE CIRCUIT . . . . . .

133

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

133

M&A BRANCH LINE CIRCUIT . . . . . .

134

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

134

AV BRANCH LINE CIRCUIT . . . . . . ..

135

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

135

DLC BRANCH LINE CIRCUIT . . . . . .

136

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

136

EPS BRANCH LINE CIRCUIT . . . . . .

137

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

137

I-KEY BRANCH LINE CIRCUIT . . . . . ..

138

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

138

IPDM-E BRANCH LINE CIRCUIT . . . . ...

139

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

139

CAN COMMUNICATION CIRCUIT . . . . .

140

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

140

CAN SYSTEM (TYPE 5)

COMPONENT DIAGNOSIS . . . . . ...

142

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . .

142

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

142

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . .

143

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

143

ECM BRANCH LINE CIRCUIT . . . . . ...

144

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

144

ABS BRANCH LINE CIRCUIT . . . . . .

145

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

145

BCM BRANCH LINE CIRCUIT . . . . . ...

146

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

146

M&A BRANCH LINE CIRCUIT . . . . . ...

147

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

147

DLC BRANCH LINE CIRCUIT . . . . . .

148

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

148

EPS BRANCH LINE CIRCUIT . . . . . .

149

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

149

STRG BRANCH LINE CIRCUIT . . . . . .

150

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

150

IPDM-E BRANCH LINE CIRCUIT . . . . ...

151

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

151

CAN COMMUNICATION CIRCUIT . . . . .

152

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

152

CAN SYSTEM (TYPE 6)

COMPONENT DIAGNOSIS . . . . . ...

154

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . .

154

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

154

LAN-4

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . .

155

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

155

ECM BRANCH LINE CIRCUIT . . . . . .

156

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

156

ABS BRANCH LINE CIRCUIT . . . . . .

157

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

157

BCM BRANCH LINE CIRCUIT . . . . . .

158

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

158

M&A BRANCH LINE CIRCUIT . . . . . .

159

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

159

AV BRANCH LINE CIRCUIT . . . . . . ...

160

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

160

DLC BRANCH LINE CIRCUIT . . . . . . .

161

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

161

EPS BRANCH LINE CIRCUIT . . . . . . .

162

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

162

STRG BRANCH LINE CIRCUIT . . . . . ..

163

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

163

IPDM-E BRANCH LINE CIRCUIT . . . . ...

164

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

164

CAN COMMUNICATION CIRCUIT . . . . ..

165

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

165

CAN SYSTEM (TYPE 7)

COMPONENT DIAGNOSIS . . . . . ...

167

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . .

167

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

167

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . .

168

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

168

ECM BRANCH LINE CIRCUIT . . . . . .

169

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

169

ABS BRANCH LINE CIRCUIT . . . . . .

170

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

170

BCM BRANCH LINE CIRCUIT . . . . . .

171

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

171

M&A BRANCH LINE CIRCUIT . . . . . .

172

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

172

DLC BRANCH LINE CIRCUIT . . . . . . .

173

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

173

EPS BRANCH LINE CIRCUIT . . . . . . .

174

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

174

I-KEY BRANCH LINE CIRCUIT . . . . . ...

175

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

175

STRG BRANCH LINE CIRCUIT . . . . . ...

176

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

176

IPDM-E BRANCH LINE CIRCUIT . . . . .

177

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

177

CAN COMMUNICATION CIRCUIT . . . . ..

178

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

178

CAN SYSTEM (TYPE 8)

COMPONENT DIAGNOSIS . . . . . ..

180

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ..

180

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

180

MAIN LINE BETWEEN DLC AND BCM CIR-
CUIT . . . . . . . . . . . . . . . . ..

181

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

181

ECM BRANCH LINE CIRCUIT . . . . . . .

182

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

182

ABS BRANCH LINE CIRCUIT . . . . . . .

183

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

183

BCM BRANCH LINE CIRCUIT . . . . . . .

184

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

184

M&A BRANCH LINE CIRCUIT . . . . . . .

185

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

185

AV BRANCH LINE CIRCUIT . . . . . . .

186

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

186

DLC BRANCH LINE CIRCUIT . . . . . . .

187

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

187

EPS BRANCH LINE CIRCUIT . . . . . . ..

188

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

188

I-KEY BRANCH LINE CIRCUIT . . . . . ...

189

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

189

STRG BRANCH LINE CIRCUIT . . . . . ...

190

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

190

IPDM-E BRANCH LINE CIRCUIT . . . . .

191

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

191

CAN COMMUNICATION CIRCUIT . . . . ..

192

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

192

CAN SYSTEM (TYPE 9)

COMPONENT DIAGNOSIS . . . . . ..

194

MAIN LINE BETWEEN ABS AND DLC CIR-
CUIT . . . . . . . . . . . . . . . . ..

194

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

194