Infiniti QX56 (JA60). Manual — part 2

ACCELERATOR CONTROL SYSTEM

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< REMOVAL AND INSTALLATION >

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4. Disconnect the adjustable pedal electric motor electrical connec-

tor.

5. Disconnect the adjustable pedal electric motor memory electri-

cal connector.

6. Disconnect the accelerator position sensor electrical connector.
7. Remove the two upper and one lower accelerator pedal nuts.
8. Remove the adjustable accelerator pedal assembly.

CAUTION:

• Do not disassemble the accelerator pedal assembly.

• Do not remove the accelerator pedal position sensor from

the accelerator pedal bracket.

• Do not disassemble the accelerator pedal adjusting mechanism.

• Avoid damage from dropping the accelerator pedal assembly during handling.

• Keep the accelerator pedal assembly away from water.

INSTALLATION

Installation is in the reverse order of removal.

INSPECTION AFTER INSTALLATION

• Check that the accelerator pedal moves smoothly within the specified ranges.

• Depress and release the accelerator pedal to check that it returns smoothly to the original released position.

• Perform an electrical inspection of the accelerator pedal position sensor. Refer to

EC-191, "Component

Inspection"

.

CAUTION:

When the harness connector of the accelerator pedal position sensor is disconnected, perform

“Accelerator Pedal Released Position Learning”. Refer to

EC-63, "CONSULT-III Function (ENGINE)"

.

LBIA0380E

Adjustable accelerator pedal – total pedal applied stroke

: 48.3 mm (1.90 in)

Adjustable accelerator pedal – total pedal adjustment travel

: 73.2 mm (2.88 in)

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< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Accelerator Control

INFOID:0000000005149564

ADJUSTABLE ACCELERATOR PEDAL

Total Pedal Travel and Stroke

Unit: mm (in)

Adjustable accelerator pedal - total pedal applied stroke

48.3 (1.90)

Adjustable accelerator pedal - total pedal adjustment travel

73.2 (2.88)

ADP-1

BODY INTERIOR

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SECTION

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CONTENTS

AUTOMATIC DRIVE POSITIONER

BASIC INSPECTION . . . . . . . . .

5

DIAGNOSIS AND REPAIR WORKFLOW . . ..

5

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

5

INSPECTION AND ADJUSTMENT . . . . . .

8

Preliminary Check . . . . . . . . . . . . .....

8

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

8

PRE-INSPECTION FOR DIAGNOSTIC . . . ..

9

Basic Inspection . . . . . . . . . . . . . ....

9

FUNCTION DIAGNOSIS . . . . . . . ..

11

AUTOMATIC DRIVE POSITIONER SYSTEM .

11

AUTOMATIC DRIVE POSITIONER SYSTEM . . ...

11

AUTOMATIC DRIVE POSITIONER SYSTEM :
System Diagram . . . . . . . . . . . . . ..

11

AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description . . . . . . . . . . . . .

12

AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Parts Location . . . . . . . . . ..

12

AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Description . . . . . . . . . . ..

13

MANUAL FUNCTION . . . . . . . . . . . .

14

MANUAL FUNCTION : System Diagram . . . .

15

MANUAL FUNCTION : System Description . . .

15

MANUAL FUNCTION : Component Parts Loca-
tion . . . . . . . . . . . . . . . . . . ..

17

MANUAL FUNCTION : Component Description .

17

MEMORY FUNCTION . . . . . . . . . . . ...

18

MEMORY FUNCTION : System Diagram . . . ...

19

MEMORY FUNCTION : System Description . . ..

19

MEMORY FUNCTION : Component Parts Loca-
tion . . . . . . . . . . . . . . . . . . ..

20

MEMORY FUNCTION : Component Description .

21

EXIT ASSIST FUNCTION . . . . . . . . . . ..

22

EXIT ASSIST FUNCTION : System Diagram . . .

22

EXIT ASSIST FUNCTION : System Description . .

22

EXIT ASSIST FUNCTION : Component Parts Lo-
cation . . . . . . . . . . . . . . . . . ...

23

EXIT ASSIST FUNCTION :
Component Description . . . . . . . . . . ..

24

ENTRY ASSIST FUNCTION . . . . . . . . . ..

24

ENTRY ASSIST FUNCTION : System Diagram . .

25

ENTRY ASSIST FUNCTION : System Description

.

25

ENTRY ASSIST FUNCTION : Component Parts
Location . . . . . . . . . . . . . . . . ...

26

ENTRY ASSIST FUNCTION :
Component Description . . . . . . . . . . ..

27

DIAGNOSIS SYSTEM (DRIVER SEAT C/U) .

28

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

28

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

28

COMPONENT DIAGNOSIS . . . . . . .

31

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

31

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

31

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

31

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

31

B2112 SLIDING MOTOR . . . . . . . . ..

32

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

32

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

32

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

32

B2113 RECLINING MOTOR . . . . . . . .

33

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

33

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

33

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

33

B2114 SEAT LIFTER FR . . . . . . . . ..

34

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

34

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

34

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

34

B2115 SEAT LIFTER RR . . . . . . . . ..

35

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

35

ADP-2

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

35

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

35

B2117 ADJ PEDAL MOTOR . . . . . . . .

36

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

36

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

36

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

36

B2118 TILT SENSOR . . . . . . . . . .

38

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

38

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

38

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

38

B2120 ADJ PEDAL SENSOR . . . . . . ...

40

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

40

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

40

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

40

B2126 DETENT SW . . . . . . . . . . ...

42

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

42

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

42

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

42

B2128 UART COMMUNICATION LINE . . .

44

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

44

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

44

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

44

POWER SUPPLY AND GROUND CIRCUIT . .

46

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

46

BCM : Diagnosis Procedure . . . . . . . . ...

46

DRIVER SEAT CONTROL UNIT . . . . . . . ..

47

DRIVER SEAT CONTROL UNIT :
Diagnosis Procedure . . . . . . . . . . . .

47

DRIVER SEAT CONTROL UNIT : Special Repair
Requirement . . . . . . . . . . . . . . ...

48

AUTOMATIC DRIVE POSITIONER CONTROL
UNIT . . . . . . . . . . . . . . . . . . ..

48

AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Diagnosis Procedure . . . . . . . . ..

48

AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Special Repair Requirement . . . . . ...

48

SLIDING SWITCH . . . . . . . . . . . ..

50

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

50

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

50

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

50

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

51

RECLINING SWITCH . . . . . . . . . .

53

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

53

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

53

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

53

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

54

LIFTING SWITCH (FRONT) . . . . . . . ..

56

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

56

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

56

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

56

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

57

LIFTING SWITCH (REAR) . . . . . . . .

59

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

59

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

59

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

59

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

60

TILT SWITCH . . . . . . . . . . . . .

62

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

62

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

62

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

62

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

63

PEDAL ADJUSTING SWITCH . . . . . . ..

65

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

65

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

65

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

65

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

67

SEAT MEMORY SWITCH . . . . . . . . .

68

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

68

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

68

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

68

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

69

DOOR MIRROR REMOTE CONTROL
SWITCH . . . . . . . . . . . . . . . .

70

CHANGEOVER SWITCH . . . . . . . . . . ..

70

CHANGEOVER SWITCH : Description . . . . ..

70

CHANGEOVER SWITCH : Component Function
Check . . . . . . . . . . . . . . . . . ..

70

CHANGEOVER SWITCH : Diagnosis Procedure ...

70

CHANGEOVER SWITCH : Component Inspec-
tion . . . . . . . . . . . . . . . . . . ..

72

MIRROR SWITCH . . . . . . . . . . . . . .

72

MIRROR SWITCH : Description . . . . . . . .

72

MIRROR SWITCH : Component Function Check ...

72

MIRROR SWITCH : Diagnosis Procedure . . . ..

72

MIRROR SWITCH : Component Inspection . . ...

74

POWER SEAT SWITCH GROUND CIRCUIT ...

76

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

76

DETENTION SWITCH . . . . . . . . . ...

77

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

77

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

77

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

77

FRONT DOOR SWITCH (DRIVER SIDE) . . .

79

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

79

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

79

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

79

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

80

SLIDING SENSOR . . . . . . . . . . .

81

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

81

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

81

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

81