Infiniti QX56 (Z62). Manual — part 384

DLK-2

DOOR LOCK . . . . . . . . . . . . . . . .

39

DOOR LOCK : CONSULT-III Function (BCM -
DOOR LOCK) . . . . . . . . . . . . . .
.

39

INTELLIGENT KEY . . . . . . . . . . . . ...

40

INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) . . . . . . . . ..
.

41

TRUNK . . . . . . . . . . . . . . . . . ..

44

TRUNK : CONSULT-III Function (BCM - TRUNK) ...

44

DIAGNOSIS SYSTEM (AUTOMATIC BACK
DOOR CONTROL UNIT) . . . . . . . . ...

45

CONSULT-III Function (AUTOMATIC BACK
DOOR CONTROL UNIT) . . . . . . . . . ...
.

45

ECU DIAGNOSIS INFORMATION . . . ..

46

BCM . . . . . . . . . . . . . . . . ...

46

List of ECU Reference . . . . . . . . . . ....

46

AUTOMATIC BACK DOOR CONTROL MOD-
ULE . . . . . . . . . . . . . . . . .

47

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

47

Fail Safe . . . . . . . . . . . . . . . . .

49

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

49

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

50

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

51

DOOR & LOCK SYSTEM . . . . . . . . ..

51

Wiring Diagram - DOOR & LOCK SYSTEM - . . .

51

AUTOMATIC BACK DOOR SYSTEM . . . ...

66

Wiring Diagram - AUTOMATIC BACK DOOR
SYSTEM - . . . . . . . . . . . . . . . ..
.

66

INTEGRATED HOMELINK TRANSMITTER
SYSTEM . . . . . . . . . . . . . . . .

75

Wiring Diagram - INTEGRATED HOMELINK
TRANSMITTER SYSTEM - . . . . . . . . ...
.

75

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

77

DIAGNOSIS AND REPAIR WORK FLOW . .

77

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

77

INSPECTION AND ADJUSTMENT . . . . ...

80

ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL . . . . . . . . .
.

80

ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ...
.

80

ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Work Proce-
dure . . . . . . . . . . . . . . . . . ...
.

80

ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) . . . . . . . . . . ...
.

80

ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) : Description . . . . ...
.

80

ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) : Work Procedure . . . .

80

ADDITIONAL SERVICE WHEN REPLACING (AU-
TOMATIC BACK DOOR CONTROL MODULE) . ...

80

ADDITIONAL SERVICE WHEN REPLACING
(AUTOMATIC BACK DOOR CONTROL MOD-
ULE) : Description . . . . . . . . . . . . ...

80

ADDITIONAL SERVICE WHEN REPLACING
(AUTOMATIC BACK DOOR CONTROL MOD-
ULE) : Work Procedure . . . . . . . . . . ...

80

DTC/CIRCUIT DIAGNOSIS . . . . . .

82

U1000 CAN COMM CIRCUIT . . . . . . .

82

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

82

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

82

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

82

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

83

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

83

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

83

B2401 IGNITION POWER SUPPLY CIRCUIT ...

84

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

84

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

84

B2403 ENCODER . . . . . . . . . . . ..

85

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

85

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

85

B2409 HALF LATCH SWITCH . . . . . . ..

86

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

86

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

86

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

87

B2416 TOUCH SENSOR RH . . . . . . .

88

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

88

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

88

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

89

B2417 TOUCH SENSOR LH . . . . . . . .

90

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

90

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

90

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

91

B2419 OPEN SWITCH . . . . . . . . . ..

92

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

92

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

92

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

93

B2420 CLOSE SWITCH . . . . . . . . .

95

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

95

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

95

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

96

B2421 CLUTCH OPERATION TIME . . . . .

97

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

97

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

97

B2422 BACK DOOR STATE . . . . . . . .

98

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

98

DLK-3

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

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

98

B2423 AUTOMATIC BACK DOOR MOTOR
OPERATION TIME . . . . . . . . . . . .

99

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

99

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

99

B2424 CLOSURE CONDITION . . . . . .

100

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

100

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

100

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

101

B2425 AUTOMATIC BACK DOOR CONTROL
UNIT . . . . . . . . . . . . . . . . ..

103

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

103

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

103

B2621 INSIDE ANTENNA . . . . . . . .

104

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

104

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

104

B2622 INSIDE ANTENNA . . . . . . . .

106

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

106

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

106

B2623 INSIDE ANTENNA . . . . . . . .

108

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

108

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

108

B2626 OUTSIDE ANTENNA . . . . . . .

110

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

110

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

110

B2627 OUTSIDE ANTENNA . . . . . . .

112

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

112

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

112

B2628 OUTSIDE ANTENNA . . . . . . .

114

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

114

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

114

POWER SUPPLY AND GROUND CIRCUIT .

116

AUTOMATIC BACK DOOR CONTROL UNIT . .

116

AUTOMATIC BACK DOOR CONTROL UNIT : Di-
agnosis Procedure . . . . . . . . . . . .

116

DOOR SWITCH . . . . . . . . . . . .

117

Component Function Check . . . . . . . .

117

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

117

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

119

BACK DOOR SWITCH . . . . . . . . . .

120

Component Function Check . . . . . . . .

120

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

120

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

121

DOOR LOCK AND UNLOCK SWITCH . . .

122

DRIVER SIDE . . . . . . . . . . . . . . ..

122

DRIVER SIDE : Component Function Check . ..

122

DRIVER SIDE : Diagnosis Procedure . . . . ...

122

PASSENGER SIDE . . . . . . . . . . . . ..

122

PASSENGER SIDE :
Component Function Check . . . . . . . .

122

PASSENGER SIDE : Diagnosis Procedure . . ..

122

DOOR LOCK ACTUATOR . . . . . . . ..

123

DRIVER SIDE . . . . . . . . . . . . . . ...

123

DRIVER SIDE : Component Function Check . ..

123

DRIVER SIDE : Diagnosis Procedure . . . . ...

123

PASSENGER SIDE . . . . . . . . . . . . ..

124

PASSENGER SIDE :
Component Function Check . . . . . . . .

124

PASSENGER SIDE : Diagnosis Procedure . . ..

124

REAR LH . . . . . . . . . . . . . . . . ..

125

REAR LH : Component Function Check . . . ..

125

REAR LH : Diagnosis Procedure . . . . . . ...

125

REAR RH . . . . . . . . . . . . . . . . .

126

REAR RH : Component Function Check . . . .

126

REAR RH : Diagnosis Procedure . . . . . . ..

126

FUEL LID LOCK ACTUATOR . . . . . .

128

Component Function Check . . . . . . . .

128

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

128

UNLOCK SENSOR . . . . . . . . . . .

130

Component Function Check . . . . . . . .

130

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

130

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

131

DOOR KEY CYLINDER SWITCH . . . . ...

132

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

132

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

132

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

133

REMOTE KEYLESS ENTRY RECEIVER . ...

134

Component Function Check . . . . . . . .

134

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

134

DOOR REQUEST SWITCH . . . . . . .

137

Component Function Check . . . . . . . .

137

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

137

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

138

BACK DOOR REQUEST SWITCH . . . . .

139

Component Function Check . . . . . . . .

139

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

139

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

140

BACK DOOR OPENER SWITCH . . . . ...

141

Component Function Check . . . . . . . .

141

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

141

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

142

INTELLIGENT KEY WARNING BUZZER . ...

143

Component Function Check . . . . . . . .

143

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

143

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

144

INTELLIGENT KEY . . . . . . . . . . .

145

DLK-4

Component Function Check . . . . . . . .

145

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

145

COMBINATION METER BUZZER . . . . ..

146

Component Function Check . . . . . . . .

146

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

146

INFORMATION DISPLAY . . . . . . . ...

147

Component Function Check . . . . . . . .

147

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

147

KEY WARNING LAMP . . . . . . . . .

148

Component Function Check . . . . . . . .

148

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

148

HAZARD FUNCTION . . . . . . . . . ...

149

Component Function Check . . . . . . . .

149

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

149

AUTOMATIC BACK DOOR CLOSE SWITCH .

150

Component Function Check . . . . . . . .

150

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

150

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

151

AUTOMATIC BACK DOOR MAIN SWITCH ...

152

Component Function Check . . . . . . . .

152

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

152

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

153

AUTOMATIC BACK DOOR SWITCH . . . .

154

Component Function Check . . . . . . . .

154

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

154

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

155

HALF LATCH SWITCH . . . . . . . . ...

156

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

156

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

156

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

157

TOUCH SENSOR . . . . . . . . . . .

158

RH . . . . . . . . . . . . . . . . . . . .

158

RH : Component Function Check . . . . . .

158

RH : Diagnosis Procedure . . . . . . . . . .

158

RH : Component Inspection . . . . . . . . ..

159

LH . . . . . . . . . . . . . . . . . . . .

159

LH : Component Function Check . . . . . . .

159

LH : Diagnosis Procedure . . . . . . . . . ..

159

LH : Component Inspection . . . . . . . . ...

160

BACK DOOR CLOSURE MOTOR . . . . ..

162

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

162

AUTOMATIC BACK DOOR WARNING BUZZ-
ER . . . . . . . . . . . . . . . . .

163

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

163

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

163

GROUND CIRCUIT . . . . . . . . . . ..

165

Component Function Check . . . . . . . .

165

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

165

INTEGRATED HOMELINK TRANSMITTER .

166

Component Function Check . . . . . . . .

166

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

166

SYMPTOM DIAGNOSIS . . . . . . ...

168

DOOR DOES NOT LOCK/UNLOCK WITH
DOOR LOCK AND UNLOCK SWITCH . . .

168

ALL DOOR . . . . . . . . . . . . . . . ..

168

ALL DOOR : Description . . . . . . . . . ...

168

ALL DOOR : Diagnosis Procedure . . . . . ...

168

DRIVER SIDE . . . . . . . . . . . . . . ..

168

DRIVER SIDE : Description . . . . . . . . ..

168

DRIVER SIDE : Diagnosis Procedure . . . . ...

168

PASSENGER SIDE . . . . . . . . . . . . .

168

PASSENGER SIDE : Description . . . . . . .

169

PASSENGER SIDE : Diagnosis Procedure . . ..

169

REAR LH . . . . . . . . . . . . . . . . .

169

REAR LH : Description . . . . . . . . . . .

169

REAR LH : Diagnosis Procedure . . . . . . ..

169

REAR RH . . . . . . . . . . . . . . . . .

169

REAR RH : Description . . . . . . . . . . .

169

REAR RH : Diagnosis Procedure . . . . . . .

169

DOOR DOES NOT LOCK/UNLOCK WITH
DOOR KEY CYLINDER OPERATION . . . .

171

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

171

DOOR DOES NOT LOCK/UNLOCK WITH
DOOR REQUEST SWITCH . . . . . . . ..

172

ALL DOOR REQUEST SWITCHES . . . . . .

172

ALL DOOR REQUEST SWITCHES : Description .

172

ALL DOOR REQUEST SWITCHES : Diagnosis
Procedure . . . . . . . . . . . . . . . .

172

DRIVER SIDE DOOR REQUEST SWITCH . . . .

173

DRIVER SIDE DOOR REQUEST SWITCH : De-
scription . . . . . . . . . . . . . . . . .

173

DRIVER SIDE DOOR REQUEST SWITCH : Diag-
nosis Procedure . . . . . . . . . . . . .

173

PASSENGER SIDE DOOR REQUEST SWITCH .

173

PASSENGER SIDE DOOR REQUEST SWITCH :
Description . . . . . . . . . . . . . . .

173

PASSENGER SIDE DOOR REQUEST SWITCH :
Diagnosis Procedure . . . . . . . . . . . .

173

BACK DOOR REQUEST SWITCH . . . . . . .

173

BACK DOOR REQUEST SWITCH : Description ..

173

BACK DOOR REQUEST SWITCH : Diagnosis
Procedure . . . . . . . . . . . . . . . .

173

DOOR DOES NOT LOCK/UNLOCK WITH IN-
TELLIGENT KEY . . . . . . . . . . . ..

175

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

175

DLK-5

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

FUEL LID LOCK ACTUATOR DOES NOT OP-
ERATE . . . . . . . . . . . . . . . ..

176

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

176

IGNITION POSITION WARNING FUNCTION
DOES NOT OPERATE . . . . . . . . . .

177

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

177

SELECTIVE UNLOCK FUNCTION DOES
NOT OPERATE . . . . . . . . . . . .

178

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

178

AUTO DOOR LOCK OPERATION DOES NOT
OPERATE . . . . . . . . . . . . . . .

179

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

179

VEHICLE SPEED SENSING AUTO LOCK
OPERATION DOES NOT OPERATE . . . ..

180

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

180

IGN OFF INTERLOCK DOOR UNLOCK
FUNCTION DOES NOT OPERATE . . . . .

181

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

181

P RANGE INTERLOCK DOOR LOCK/UN-
LOCK FUNCTION DOES NOT OPERATE . ..

182

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

182

HAZARD AND HORN REMINDER DOES
NOT OPERATE . . . . . . . . . . . .

183

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

183

HAZARD AND BUZZER REMINDER DOES
NOT OPERATE . . . . . . . . . . . .

184

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

184

KEY REMINDER FUNCTION DOES NOT OP-
ERATE . . . . . . . . . . . . . . . ..

185

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

185

WELCOME LIGHT FUNCTION DOES NOT
OPERATE . . . . . . . . . . . . . . .

186

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

186

OFF POSITION WARNING DOES NOT OP-
ERATE . . . . . . . . . . . . . . . ..

188

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

188

P POSITION WARNING DOES NOT OPER-
ATE . . . . . . . . . . . . . . . . ...

189

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

189

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

189

ACC WARNING DOES NOT OPERATE . . .

191

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

191

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

191

TAKE AWAY WARNING DOES NOT OPER-
ATE . . . . . . . . . . . . . . . . ...

192

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

192

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

192

KEY ID WARNING DOES NOT OPERATE .

194

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

194

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

194

INTELLIGENT KEY LOW BATTERY WARN-
ING DOES NOT OPERATE . . . . . . .

195

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

195

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

195

DOOR LOCK OPERATION WARNING DOES
NOT OPERATE . . . . . . . . . . . ...

197

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

197

AUTOMATIC BACK DOOR OPERATION
DOES NOT OPERATE . . . . . . . . .

198

ALL SWITCHES . . . . . . . . . . . . . ...

198

ALL SWITCHES : Description . . . . . . . ...

198

ALL SWITCHES : Diagnosis Procedure . . . .

198

AUTOMATIC BACK DOOR SWITCH . . . . . ..

199

AUTOMATIC BACK DOOR SWITCH : Descrip-
tion . . . . . . . . . . . . . . . . . . .

199

AUTOMATIC BACK DOOR SWITCH : Diagnosis
Procedure . . . . . . . . . . . . . . . ..

199

AUTOMATIC BACK DOOR CLOSE SWITCH . .

199

AUTOMATIC BACK DOOR CLOSE SWITCH :
Description . . . . . . . . . . . . . . . .

199

AUTOMATIC BACK DOOR CLOSE SWITCH : Di-
agnosis Procedure . . . . . . . . . . . . .

199

INTELLIGENT KEY . . . . . . . . . . . . ..

200

INTELLIGENT KEY : Description . . . . . . ..

200

INTELLIGENT KEY : Diagnosis Procedure . . ...

200

BACK DOOR OPENER SWITCH . . . . . . .

200

BACK DOOR OPENER SWITCH : Description . .

200

BACK DOOR OPENER SWITCH : Diagnosis Pro-
cedure . . . . . . . . . . . . . . . . .

200

OPEN/CLOSURE FUNCTION . . . . . . . . .

201

OPEN/CLOSURE FUNCTION : Description . . .

201

OPEN/CLOSURE FUNCTION : Diagnosis Proce-
dure . . . . . . . . . . . . . . . . . ...

201

OPEN FUNCTION . . . . . . . . . . . . .

202

OPEN FUNCTION : Description . . . . . . .

202

OPEN FUNCTION : Diagnosis Procedure . . .

202

CLOSURE FUNCTION . . . . . . . . . . .

202

CLOSURE FUNCTION : Description . . . . . .

202

CLOSURE FUNCTION : Diagnosis Procedure . .

203

AUTOMATIC BACK DOOR WARNING DOES
NOT OPERATE . . . . . . . . . . . ...

204

BUZZER . . . . . . . . . . . . . . . . ...

204

BUZZER : Description . . . . . . . . . . ...

204

BUZZER : Diagnosis Procedure . . . . . . .

204

HAZARD WARNING LAMP . . . . . . . . . .

204

HAZARD WARNING LAMP : Description . . . ..

204

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