Infiniti QX56 (JA60). Manual - part 18

TILT SWITCH

ADP-63

< COMPONENT DIAGNOSIS >

C

D

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F

G

H

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A

B

ADP

N

O

P

1. Disconnect automatic drive positioner control unit and ADP

steering   switch.

2. Check continuity between automatic drive positioner control unit

connector M33 terminals 1, 17 and ADP steering switch connec-

tor M16 terminals 2, 3. 

3. Check continuity between automatic drive positioner control unit

connector M33 terminals 1, 17 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK ADP STEERING SWITCH GROUND CIRCUIT

Check continuity between ADP steering switch connector M16 termi-

nal 1 and ground.

Is the inspection result normal?

YES

>> Check the condition of the harness and connector.

NO

>> Replace or replace harness.

4.

 CHECK TILT SWITCH

Refer to 

ADP-63, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Replace ADP steering switch. Refer to 

ADP-179, "Removal and Installation"

.

5.

 CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace automatic drive positioner control unit. Refer to 

ADP-175, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning part.

Component Inspection

INFOID:0000000005147501

1.

 CHECK ADP STEERING WHEEL TILT SWITCH

Check continuity between ADP steering switch terminals as follows.

Is the inspection result normal?

YES

>> Inspection End.

1 - 2

: Continuity should exist.

17 - 3

: Continuity should exist.

1 - Ground

: Continuity should not exist.

17 - Ground

: Continuity should not exist.

LIIA1434E

1 - Ground

: Continuity should exist.

LIIA0490E

Terminals

Condition

Continuity

2

1

ADP steering switch ON (UP operation)

Yes

Other than above

No

3

ADP steering switch ON (DOWN operation)

Yes

Other than above

No

LIIA1435E

ADP-64

< COMPONENT DIAGNOSIS >

TILT SWITCH

NO

>> Replace ADP steering switch. Refer to 

ADP-179, "Removal and Installation"

.

PEDAL ADJUSTING SWITCH

ADP-65

< COMPONENT DIAGNOSIS >

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ADP

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PEDAL ADJUSTING SWITCH

Description

INFOID:0000000005147502

Pedal adjusting switch is on the instrument panel. The operation signal is input to the driver seat control unit

when the pedal adjusting switch is operated. The pedal adjusting switch signal is sent to the automatic drive

positioner control unit via UART communication.

Component Function Check

INFOID:0000000005147503

1.

 CHECK FUNCTION

1. Select “PEDAL SW-FR”, “PEDAL SW-RR” in “Data monitor” mode with CONSULT-III. 

2. Check pedal adjusting switch signal under the following conditions.

Is the indication normal?

YES

>> Inspection End.

NO

>> Perform diagnosis procedure. Refer to 

ADP-65, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005147504

Regarding Wiring Diagram information, refer to 

ADP-119, "Wiring Diagram"

.

1.

 CHECK PEDAL ADJUSTING SWITCH SIGNAL

1. Turn ignition switch OFF.

2. Check voltage between driver seat control unit harness connec-

tor and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> GO TO 2

2.

 CHECK PEDAL ADJUSTING SWITCH CIRCUIT

Monitor item

Condition

Status

PEDAL SW-FR

Pedal adjusting switch (forward)

Operate

ON

Release

OFF

PEDAL SW-RR

Pedal adjusting switch (backward)

Operate

ON

Release

OFF

Driver seat 
control unit 

connector

Terminals 

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B202

15

Ground

Pedal ad-

justing 

switch

Operate 

(backward)

0

Release

Battery 
voltage

30

Operate 

(forward)

0

Release

Battery 
voltage

PIIA4591E

ADP-66

< COMPONENT DIAGNOSIS >

PEDAL ADJUSTING SWITCH

1. Disconnect driver seat control unit and pedal adjusting switch.

2. Check continuity between driver seat control unit harness con-

nector and pedal adjusting switch harness connector.

3. Check continuity between driver seat control unit harness con-

nector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1. Connect the driver seat control unit.

2. Turn ignition switch OFF.

3. Check voltage between driver seat control unit harness connec-

tor and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Replace driver seat control unit. Refer to 

ADP-174, "Removal and Installation"

.

4.

 CHECK PEDAL ADJUSTING SWITCH

Refer to 

ADP-67, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Replace pedal adjusting switch. Refer to 

IP-11, "Exploded View"

.

5.

 CHECK PEDAL ADJUSTING SWITCH GROUND CIRCUIT

Check continuity between pedal adjusting switch connector M96 ter-

minal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair or replace harness.

6.

 CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Driver seat
control unit 

connector

Terminal

Pedal adjusting 

switch connector

Terminal

Continuity

B202

15

M96

2

Yes

30

3

Driver seat control unit  

connector

Terminal

Ground

Continuity 

B202

15

No

30

LIIA0726E

Driver seat control unit 

connector

Terminals 

Voltage (V) 

(Approx.)

(+)

(–)

B202

15

Ground

Battery voltage

30

PIIA4591E

1 - Ground

: Continuity should exist.

LIIA1015E