Infiniti QX56 (JA60). Manual - part 232

STEERING LOCK UNIT

DLK-99

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

STEERING LOCK UNIT

Diagnosis Procedure

INFOID:0000000005146970

Regarding Wiring Diagram information, refer to 

DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK STEERING LOCK SOLENOID POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect steering lock solenoid connector.

3. Check voltage between steering lock solenoid harness connector M15 terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace steering lock solenoid power supply

circuit.

2.

CHECK STEERING LOCK SOLENOID GROUND CIRCUIT

Check continuity between steering lock solenoid harness connector M15 terminal 4 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace the steering lock solenoid ground cir-

cuit.

3.

CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL

1. Connect steering lock solenoid connector.

2. Check voltage between Intelligent Key unit harness connector M70 terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> GO TO 6

4.

CHECK STEERING LOCK COMMUNICATION SIGNAL

Check signal between Intelligent Key unit connector M70 terminal 32 and ground with oscilloscope.

1 - Ground

: Battery voltage

WIIA1202E

4 - Ground

: Continuity should exist.

WIIA1203E

1 - Ground

: Approx. 5V

WIIA1204E

DLK-100

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

STEERING LOCK UNIT

Is the inspection result normal?

YES

>> GO TO 5

NO

>> GO TO 6

5.

CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT FOR OPEN

1. Disconnect Intelligent Key unit and steering lock solenoid connectors.

2. Check continuity between Intelligent Key unit harness connector (B) M70 terminals 1, 32 and steering lock

solenoid connector (A) M15 terminals 2, 3.

Is the inspection result normal?

YES

>> Replace steering lock solenoid.

• After replacing steering lock solenoid, perform regis-

tration procedure. Refer to 

SEC-14, "System Descrip-

tion"

.

NO

>> Repair or replace harness between steering lock sole-

noid and Intelligent Key unit.

6.

CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT FOR SHORT

1. Disconnect Intelligent Key unit and steering lock solenoid connectors.

2. Check continuity between steering lock solenoid connector M15 terminals 2, 3 and ground.

Is the inspection result normal?

YES

>> Replace Intelligent Key unit. Refer to 

SEC-120,

"Removal and Installation"

.

NO

>> Repair or replace harness between steering lock sole-

noid and Intelligent Key unit.

Connector

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

32

Ground

Ignition 
switch is 
pushed

WIIA1205E

SIIA1911J

1 - 2

: Continuity should exist.

32 - 3

: Continuity should exist.

ALKIA0661ZZ

2 - Ground

: Continuity should not exist.

3 - Ground

: Continuity should not exist.

ALKIA0662ZZ

A/T SHIFT SELECTOR (PARK POSITION SWITCH)

DLK-101

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

A/T SHIFT SELECTOR (PARK POSITION SWITCH)

Diagnosis Procedure

INFOID:0000000005146971

Regarding Wiring Diagram information, refer to 

DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) INPUT SIGNAL

1. Turn ignition switch OFF.

2. While pressing the ignition knob switch, check voltage between Intelligent Key unit harness connector

M70 terminal 39 and ground.

Is the inspection result normal?

YES

>> Replace Intelligent Key unit. Refer to 

SEC-120,

"Removal and Installation"

.

NO

>> GO TO 2

2.

CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) POWER SUPPLY CIRCUIT

1. Disconnect A/T shift selector (park position switch) connector.

2. While pressing the ignition knob switch, check voltage between

A/T shift selector (park position switch) harness connector M203

terminal 5 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or ignition knob switch.

3.

CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH)

Check continuity between A/T shift selector (park position switch) terminals 5 and 6.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Replace A/T shift selector (park position switch).

4.

CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) CIRCUIT

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-) 

M70

39

Ground

Selector lever is in "P" position Battery voltage

Other than above

0

WIIA1211E

5 – Ground

: Battery voltage.

ALKIA0663ZZ

Component

Terminals

Condition

Continuity

A/T shift se-

lector (park 

position 

switch)

5

6

Selector lever is in "P" position

Yes

Other than above

No

ALKIA0664ZZ

DLK-102

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

A/T SHIFT SELECTOR (PARK POSITION SWITCH)

1. Disconnect Intelligent Key unit connector.

2. Check continuity between Intelligent Key unit harness connector

(A) M70 terminal 39 and A/T shift selector (park position switch)

harness connector (B) M203 terminal 6.

3. Check continuity between Intelligent Key unit harness connector

(A) M70 terminals 39 and ground.

Is the inspection result normal?

YES

>> A/T shift selector (park position switch) circuit is OK.

NO

>> Repair or replace harness.

39 – 6

: Continuity should exist.

39 – Ground

: Continuity should not exist.

ALKIA0665ZZ