Infiniti FX35, FX50 (S51). Manual — part 1659

B2195 ANTI-SCANNING

SEC-49

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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B2195 ANTI-SCANNING

Description

INFOID:0000000005249449

When ignition switch is turned ON, BCM performs ID verification with ECM. If ID verification that is out of the
specified specification is detected, BCM prohibits further ID verification and engine cranking.

DTC Logic

INFOID:0000000005249450

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” using CONSULT-III.

Is DTC detected?

YES

>> Refer to

SEC-49, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000005249451

1.

CHECK SELF-DIAGNOSIS RESULT-1

1.

Perform “Self-diagnosis result” of BCM using CONSULT-III.

2.

Erase DTC.

3.

Perform DTC Confirmation Procedure. Refer to

SEC-49, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK EQUIPMENT OF THE VEHICLE

Check that unspecified accessory part related to engine start is not installed.

Is unspecified accessory part related to engine start installed?

YES

>> GO TO 3.

NO

>> Replace BCM. Refer to

BCS-83, "Removal and Installation"

.

3.

CHECK SELF-DIAGNOSIS RESULT-2

1.

Obtain the customers approval to remove unspecified accessory part related to engine start, and then
remove it.

2.

Perform “Self-diagnosis result” of BCM using CONSULT-III.

3.

Erase DTC.

4.

Perform DTC Confirmation Procedure. Refer to

SEC-49, "DTC Logic"

.

Is DTC detected?

YES

>> Replace BCM. Refer to

BCS-83, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2195

ANTI-SCANNING

ID verification between BCM and ECM that is out of
the specified specification is detected

ID verification request out of the
specified specification

SEC-50

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2013 ID DISCORD, IMMU-STRG

B2013 ID DISCORD, IMMU-STRG

Description

INFOID:0000000005249452

BCM performs the ID verification with the steering lock unit and releases the steering lock if both BCM and
steering lock unit ID are same. BCM starts the communication with the steering lock unit when Intelligent Key
is carried into the passenger compartment and the push-button ignition switch is pressed.

DTC Logic

INFOID:0000000005249453

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Lock steering.

2.

Press the push-button ignition switch.

3.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to

SEC-50, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249454

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.
Does steering lock operate?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE STEERING LOCK UNIT

1.

Replace steering lock unit.

2.

Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.

Does steering lock operate?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK INTERMITTENT INCIDENT

Refer to

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2013

ID DISCORD, BCM-S/L

The ID verification results between BCM and steering
lock unit are NG. The registration is necessary.

Steering lock unit

B2014 CHAIN OF STRG-IMMU

SEC-51

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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B2014 CHAIN OF STRG-IMMU

Description

INFOID:0000000005249455

BCM performs the ID verification with the steering lock unit to release the steering. BCM starts the communi-
cation with the steering lock unit when Intelligent Key is carried into the passenger compartment and the push-
button ignition switch is pressed.

DTC Logic

INFOID:0000000005249456

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Lock steering.

2.

Press the push-button ignition switch.

3.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to

SEC-51, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249457

1.

CHECK STEERING LOCK UNIT POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect steering lock unit connector.

3.

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector M122.

3.

Check continuity between steering lock unit harness connector and BCM harness connector.

4.

Check continuity between steering lock unit harness connector and ground.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2014

CHAIN OF S/L-BCM

Inactive communication between steering
lock unit and BCM

• Harness or connectors

(Steering lock unit circuit is open or short-
ed)

• Steering lock unit
• BCM

(+)

(–)

Condition

Voltage (V)

(Approx.)

Steering lock unit

Connector

Terminal

M40

7

Ground

Ignition switch

OFF or ACC

Battery voltage

ON

0

Steering lock unit

BCM

Continuity

Connector

Terminal

Connector

Terminal

M40

7

M122

106

Existed

SEC-52

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2014 CHAIN OF STRG-IMMU

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-83, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK STEERING LOCK UNIT GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between steering lock unit and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK STEERING LOCK UNIT COMMUNICATION SIGNAL

1.

Connect steering lock unit connector.

2.

Read voltage signal between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace steering lock unit.

NO

>> GO TO 5.

5.

CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect steering lock unit and BCM connector M122.

3.

Check continuity between steering lock unit harness connector and BCM harness connector.

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

7

Not existed

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

5

Existed

6

(+)

(–)

Condition

Voltage (V)

(Approx.)

Steering lock unit

Connector

Terminal

M40

2

Ground

Steering lock unit

Lock status

Battery voltage

Lock or unlock

For 15 seconds after
unlock

Battery voltage

15 seconds or later
after unlock.

0

Steering is locked

: Opening the door when ignition switch is ON to OFF.

Steering is unlocked

: Ignition switch is OFF to ACC.

JMKIA0066GB