Infiniti QX56 (Z62). Manual — part 450

DLK-266

< REMOVAL AND INSTALLATION >

AUTOMATIC BACK DOOR SWITCH

AUTOMATIC BACK DOOR SWITCH

Removal and Installation

INFOID:0000000006226133

REMOVAL

1.

Remove the instrument driver lower panel. Refer to

IP-14, "Removal and Installation"

.

2.

Widen the pawl, and remove the automatic back door switch from automatic back door switch finisher.

INSTALLATION

Install in the reverse order of removal.

DLN-1

TRANSMISSION & DRIVELINE

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SECTION

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CONTENTS

DRIVELINE

TRANSFER: ATX90A

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

6

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

6

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

6

Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect . . . . . . . . .....

6

Service Notice or Precautions for Transfer . . . ...

7

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

8

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

8

Special Service Tools . . . . . . . . . . . ....

8

Commercial Service Tools . . . . . . . . . ....

8

SYSTEM DESCRIPTION . . . . . . . .

10

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

10

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

10

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

11

Transfer Control Unit . . . . . . . . . . . ...

11

Transfer Control Actuator . . . . . . . . . .

11

Transfer Hi-Lo Position Sensor . . . . . . . ...

12

Transfer Rotary Position Sensor . . . . . . . .

12

Transfer Lock Position Sensor . . . . . . . .

12

Transfer Fluid Temperature Sensor . . . . . .

12

STRUCTURE AND OPERATION . . . . . ...

13

Sectional View . . . . . . . . . . . . . . .

13

Torque Split Mechanism . . . . . . . . . . .

13

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

18

4WD SYSTEM . . . . . . . . . . . . . . ...

18

4WD SYSTEM : System Description . . . . . ..

18

4WD SYSTEM : Fail-Safe . . . . . . . . . ...

20

DIAGNOSIS SYSTEM (TRANSFER CON-
TROL UNIT) . . . . . . . . . . . . . .

21

CONSULT-III Function . . . . . . . . . . .

21

ECU DIAGNOSIS INFORMATION . . . ..

24

TRANSFER CONTROL UNIT . . . . . . ...

24

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

24

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

28

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

29

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

29

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

31

4WD SYSTEM . . . . . . . . . . . . ...

31

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

31

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

38

DIAGNOSIS AND REPAIR WORK FLOW . ...

38

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

38

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

39

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

41

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

41

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

41

ADDITIONAL SERVICE WHEN REPLACING
TRANSFER ASSEMBLY . . . . . . . . ..

42

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

42

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

42

TRANSFER LOCK POSITION SENSOR
LEARNING . . . . . . . . . . . . . .

44

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

44

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

44

TRANSFER ROTARY POSITION SENSOR
LEARNING . . . . . . . . . . . . . .

46

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

46

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

46

TRANSFER FLUID VISCOSITY LEARNING .

47

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

47

DLN-2

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

47

CONFIGURATION (TRANSFER CONTROL
UNIT) . . . . . . . . . . . . . . . . ..

48

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

48

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

48

DTC/CIRCUIT DIAGNOSIS . . . . . . .

51

P1802, P1803, P1804, P1809 TRANSFER
CONTROL UNIT . . . . . . . . . . . .

51

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

51

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

51

P1807 OUT PUT SHAFT SPEED SENSOR . ..

52

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

52

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

52

P1808 WHEEL SPEED SENSOR . . . . . ..

53

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

53

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

53

P180C SENSOR POWER SUPPLY (5V) . . ..

54

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

54

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

54

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

54

P180D TRANSFER ROTARY POSITION
SENSOR . . . . . . . . . . . . . . .

57

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

57

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

57

P180E SENSOR POWER SUPPLY (8V) . . ...

59

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

59

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

59

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

59

P180F TRANSFER INTERNAL SPEED SEN-
SOR . . . . . . . . . . . . . . . . .

61

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

61

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

61

P1811 POWER SUPPLY CIRCUIT FOR
TRANSFER CONTROL UNIT . . . . . . .

64

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

64

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

64

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

64

P1813 4WD MODE SWITCH . . . . . . . .

67

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

67

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

67

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

68

P1816 PARKING/NEUTRAL POSITION
SWITCH . . . . . . . . . . . . . . . .

69

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

69

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

69

P1817 TRANSFER MOTOR . . . . . . . ..

70

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

70

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

70

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

71

P181A TRANSFER MOTOR TEMPERATURE
SENSOR . . . . . . . . . . . . . . .

72

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

72

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

72

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

73

P181B INCOMPLETE SELFSHUT . . . . .

74

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

74

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

74

P181C TRANSFER MOTOR POWER SUP-
PLY . . . . . . . . . . . . . . . . .

76

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

76

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

76

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

76

P181E STEERING ANGLE SENSOR . . . ...

77

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

77

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

77

P181F INCOMPLETE CALIBRATION . . . ..

78

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

78

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

78

P1820 ENGINE SPEED SIGNAL . . . . . ..

79

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

79

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

79

P1826 TRANSFER FLUID TEMPERATURE .

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

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

80

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

81

P1829 ACCELERATOR PEDAL POSITION
SENSOR . . . . . . . . . . . . . . .

82

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

82

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

82

P182A TRANSFER HI-LO POSITION SEN-
SOR . . . . . . . . . . . . . . . . ...

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

83

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

83

P182B TRANSFER LOCK POSITION SEN-
SOR . . . . . . . . . . . . . . . . ...

85

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

85

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

85

P1830 ABS OPERATION SIGNAL . . . . ...

88

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

88

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

88

P1831 VDC OPERATION SIGNAL . . . . ...

89

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

89

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

89

P1832 TCS OPERATION SIGNAL . . . . .

90

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

90

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

90

DLN-3

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

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

91

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

91

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

91

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

92

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

92

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

92

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

92

POWER SUPPLY AND GROUND CIRCUIT . ..

93

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

93

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

93

4WD WARNING LAMP . . . . . . . . . ..

97

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

97

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

97

4WD INDICATOR LAMP . . . . . . . . .

98

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

98

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

98

SYMPTOM DIAGNOSIS . . . . . . . ..

99

HEAVY TIGHT-CORNER BRAKING SYMP-
TOM OCCURS . . . . . . . . . . . . ...

99

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

99

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

99

4WD MODE DOES NOT CHANGE . . . . ..

100

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

100

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

100

4WD MODE INDICATOR LAMP CONTINUES
BLINKING . . . . . . . . . . . . . . .

101

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

101

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

101

4WD WARNING LAMP BLINKS QUICKLY . .

102

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

102

4WD WARNING LAMP BLINKS SLOWLY . .

103

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

103

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

103

INFORMATION DISPLAY IS NOT DIS-
PLAYED . . . . . . . . . . . . . . ...

104

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

104

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

104

NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING . . . . . . ..

105

NVH Troubleshooting Chart . . . . . . . . ..

105

PERIODIC MAINTENANCE . . . . . ...

106

TRANSFER FLUID . . . . . . . . . . ...

106

Inspection . . . . . . . . . . . . . . . ..

106

Draining . . . . . . . . . . . . . . . . .

106

Refilling . . . . . . . . . . . . . . . . .

106

REMOVAL AND INSTALLATION . . . .

107

TRANSFER CONTROL UNIT . . . . . . .

107

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

107

4WD MODE SWITCH . . . . . . . . . ..

108

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

108

FRONT OIL SEAL . . . . . . . . . . ...

109

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

109

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

109

REAR OIL SEAL . . . . . . . . . . . .

111

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

111

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

111

Adjustment . . . . . . . . . . . . . . . .

112

TRANSFER CONTROL ACTUATOR . . . .

114

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

114

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

114

Inspection . . . . . . . . . . . . . . . ..

114

TRANSFER HI-LO POSITION SENSOR . .

116

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

116

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

116

Inspection . . . . . . . . . . . . . . . ..

116

TRANSFER ROTARY POSITION SENSOR ...

117

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

117

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

117

Inspection . . . . . . . . . . . . . . . ..

118

TRANSFER LOCK POSITION SENSOR . .

119

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

119

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

119

Inspection . . . . . . . . . . . . . . . ..

119

TRANSFER FLUID TEMPERATURE SEN-
SOR . . . . . . . . . . . . . . . . .

120

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

120

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

120

Inspection . . . . . . . . . . . . . . . ..

120

UNIT REMOVAL AND INSTALLATION .

121

TRANSFER ASSEMBLY . . . . . . . .

121

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

121

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

121

INPUT OIL SEAL . . . . . . . . . . .

123

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

123

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

123

SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..

124

SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . ...

124

General Specifications . . . . . . . . . . ...

124

FRONT PROPELLER SHAFT: 2F P15

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

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

125