Infiniti FX35, FX50 (S51). Manual - part 1668

B26E1 NO RECEPTION OF ENGINE STATUS SIGNAL

SEC-85

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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B26E1 NO RECEPTION OF ENGINE STATUS SIGNAL

Description

INFOID:0000000005249512

BCM receives the engine status signal from ECM via CAN communication.

DTC Logic

INFOID:0000000005249513

DTC DETECTION LOGIC

NOTE:
• If DTC B26E1 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-31, "BCM : DTC Logic"

.

• If DTC B26E1 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-33, "BCM : DTC 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 diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-85, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249514

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

SEC-85, "DTC Logic"

.

Is the DTC B26E1 displayed again?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

REPLACE ECM

Replace ECM. Refer to 

EC-23, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description"

.

>> INSPECTION END

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B26E1

ENG STATE NO REC/V

BCM does not receive the engine status signal 
from ECM when ignition switch is in the ON po-
sition

ECM

SEC-86

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B26E9 STEERING STATUS

B26E9 STEERING STATUS

Description

INFOID:0000000005249515

There are 2 switches in the steering lock unit (steering lock/unlock switch 1 and 2). BCM compares those 2
switches conditions to judge the present steering status.

DTC Logic

INFOID:0000000005249516

DTC DETECTION LOGIC

NOTE:
• If DTC B26E9 is displayed with DTC B2609, first perform the trouble diagnosis for DTC B2609. Refer to

SEC-77, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF.

3.

Press driver side door switch and wait for at least 1 second.

4.

Turn ignition switch ON.

5.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SEC-86, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249517

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
Refer to 

SEC-85, "DTC Logic"

.

Is the DTC B26E9 displayed again?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

REPLACE STEERING LOCK UNIT

1.

Replace steering lock unit.

2.

Perform DTC confirmation procedure. Refer to 

SEC-86, "DTC Logic"

.

Is the DTC B26E9 displayed again?

YES

>> GO TO 3.

NO

>> INSPECTION END

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B26E9

S/L STATUS

BCM requests lock to steering lock unit, then steer-
ing lock unit transmits a recognition signal to BCM, 
but steering lock unit remains unlocked.

Steering lock unit 

B26EA KEY REGISTRATION

SEC-87

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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B26EA KEY REGISTRATION

Description

INFOID:0000000005249518

When the registered Intelligent Key is carried, the door lock/unlock operation and the push-button ignition
switch operation become possible.

DTC Logic

INFOID:0000000005249519

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Perform initialization with CONSULT-III. Reregister all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-87, "Diagnosis Procedure"

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249520

1.

PERFORM INITIALIZATION

1.

Perform initialization with CONSULT-III. Reregister all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

REPLACE INTELLIGENT KEY

1.

Replace Intelligent Key. Reregister all Intelligent Keys

2.

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

3.

Check “Self diagnostic result” with CONSULT-III.

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

B26EA

KEY REGISTRA-
TION

Intelligent Key is not registered successfully.

• Improper registration operation
• Intelligent Key
• BCM

SEC-88

< DTC/CIRCUIT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2612 STEERING STATUS

B2612 STEERING STATUS

Description

INFOID:0000000005249521

There are 2 switches in the steering unit. IPDM E/R compares those 2 switch conditions to judge the present
steering status and transmit the result to BCM via CAN communication.

DTC Logic

INFOID:0000000005249522

DTC DETECTION LOGIC

NOTE:
• If DTC B2612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-31, "BCM : DTC Logic"

.

• If DTC B2612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-31, "IPDM E/R : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 1

1.

Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-88, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF.

3.

Press door switch.

4.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-88, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249523

1.

INSPECTION START

Check the case in which DTC is detected.
• Case1: It is detected after ignition switch is changed from OFF to ON
• Case2: It is detected after ignition switch is changed from ON to OFF and door switch is pressed
In which case is DTC detected?

Case1 >> GO TO 2.
Case2 >> GO TO 6.

2.

CHECK BCM OUTPUT SIGNAL

1.

Turn ignition switch OFF.

DTC

Self-diagnosis name

DTC detecting condition

Possible causes

B2612

S/L STATUS

BCM detects the difference between 
the following status for 1 second
• Steering lock or unlock
• Feedback of steering lock status from 

IPDM E/R (CAN)

• Harness or connectors

[steering lock unit circuit (BCM side) is 
open or shorted]

• Harness or connectors

[steering lock unit circuit (IPDM E/R side) 
is open or shorted]

• Steering lock unit 
• IPDM E/R
• BCM