Infiniti Q45. Manual - part 829

AUTOMATIC DRIVE POSITIONER

SE-71

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2. 

CHECK FUSE 

Check if any of the following fuses is blown.

NOTE:
Refer to

SE-17, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 3.

NG

>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to 

PG-2,

"POWER SUPPLY ROUTING"

 .

3. 

CHECK KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF, 

2.

Check voltage between key switch and key lock solenoid con-
nector M64 terminal 3 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Check harness between key switch and key lock sole-

noid and fuse.

4. 

CHECK KEY SWITCH

1.

Disconnect key switch connector.

2.

Check continuity between key switch connector M64 terminal 3
and 4.

OK or NG

OK

>> GO TO 5.

NG

>> Replace key switch and key lock solenoid (key switch) switch.

Power source

Fuse No.

Unit

BAT power supply

32 (10A)

Fuse block (J/B) No. 2

3 (W) – Ground

: Battery voltage.

PIIA3286E

Connector

Terminals

Condition

Continuity

M64

3 4

Key is inserted in ignition key cylinder

Yes

Key is removed from ignition key cylinder

No

PIIA3044E

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AUTOMATIC DRIVE POSITIONER

5. 

CHECK HARNESS CONTINUITY

1.

Disconnect key switch and key lock solenoid connector and BCM connector.

2.

Check continuity between key switch and key lock solenoid connector M64 terminal 4 and BCM connector
M4 terminal 69.

3.

Check continuity between key switch and key lock solenoid con-
nector M64 terminal 4 and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between key switch and key

lock solenoid and BCM.

Check Front Door Switch (Driver Side) Circuit

NIS00134

1. 

CHECK FUNCTION

 With CONSULT-II

With "DOOR SW DR" on the DATA MONITOR, check ON/OFF oper-
ation when the driver door is open and closed.

 Without CONSULT-II

Carry out "SWITCH MONITOR" in the self-diagnosis function, and open and close the driver door to check.
Refer to 

SE-49, "SWITCH MONITOR"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

2. 

CHECK FRONT DOOR SWITCH (DRIVER SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect door switch (driver side) connector.

3.

Check continuity between (driver side) door switch connector B20 terminal 1 and ground part of door
switch.

OK or NG

OK

>> GO TO 3.

NG

>> Replace door switch (driver side).

4 (PU/W) – 69 (PU/W)

: Continuity should exist.

4 (PU/W) – Ground

: Continuity should not exist.

PIIA3287E

Monitor item

[OPERATION or UNIT]

Contents

DOOR SW
DR

"ON/

OFF"

Door open (ON)/door closed (OFF) status judged from 
the driver door switch is displayed.

PIIA0291E

Connector

Terminals

Condition

Continuity

B20

1

Ground part of 

door switch

With the front door 
switch (driver side) 
pressed

No

With the front door 
switch (driver side) 
released

Yes

PIIA3351E

AUTOMATIC DRIVE POSITIONER

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3. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM connector.

2.

Check continuity between BCM connector M4 terminal 142 and
front door switch connector B20 terminal 1.

3.

Check continuity between BCM connector M4 terminal 142 and
ground.

OK or NG

OK

>> Replace BCM.

NG

>> Repair or replace harness between BCM and front door

switch (driver side).

Check Vehicle Speed Signal

NIS00135

1. 

CHECK SYMPTOM

Check that the speedometer in the combination meter operates normally.
OK or NG

OK

>> GO TO 2.

NG

>> Check vehicle speed signal. Refer to 

DI-7, "COMBINATION METERS"

 . 

2. 

CHECK FUNCTION

With CONSULT-II

With "VHCL SPEED SE" on the DATA MONITOR, Check vehicle
speed signal.

Without CONSULT-II

Perform the on-board diagnosis. Refer to 

SE-50, "ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSI-

TIONER"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

142 (W/R) – 1 (W/R)

: Continuity should exist.

142 (W/R) – Ground

: Continuity should not exist.

PIIA3346E

Monitor item

[OPERATION or UNIT]

Contents

VHCL
SPEED SE

"7km/

7km"

The present vehicle speed (less than 7 km/h (4 MPH), or 
7 km/h (4 MPH) or higher) is displayed.

PIIA0291E

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AUTOMATIC DRIVE POSITIONER

3. 

CHECK VEHICLE SPEED INPUT/OUTPUT

1.

Start the engine.

2.

Check signal between BCM connector and ground, with oscillo-
scope.

OK or NG

OK

>> Replace BCM.

NG

>> GO TO 4.

4. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination meter connector.

3.

Check continuity between BCM connector M4 terminal 49 and
combination meter connector M41 terminal 18.

4.

Check continuity between BCM connector M4 terminal 49 and
ground.

OK or NG

OK

>> Check meter control unit 

DI-16, "HOW TO PROCEED

WITH TROUBLE DIAGNOSIS"

NG

>> Repair or replace harness between BCM and combina-

tion meter.

Connector

Terminals 

(Wire color)

Condition

Signal

(Reference value)

(+)

(–)

M4

49 (P/L)

Ground

Vehicle 
speed is 
approx.40 
km/h 
(25 MPH)

PIIA3289E

PIIA3279E

49 (P/L) – 18 (P/L)

: Continuity should exist.

49 (P/L) – Ground

: Continuity should not exist.

PIIA0308E