Nissan X-Trail 32. Manual - part 1877

B2193 CHAIN OF BCM-ECM

SEC-275

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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B2193 CHAIN OF BCM-ECM

DTC Description

INFOID:0000000010922290

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

(The CAN communication line is open or shorted.)

• BCM 
• ECM

FAIL-SAFE

Inhibit engine cranking

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC B2193-00 is displayed with DTC U1000-00 or U1010-00, first perform the trouble diagnosis for DTC
U1000-00 or U1010-00.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. U1000-00: Refer to 

BCS-110, "DTC Description"

. U1010-00:

Refer to 

BCS-111, "DTC Description"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-275, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010922291

1.

CHECK DTC PRIORITY

If DTC B2193-00 is displayed with DTC U1000-00 or U1010-00, first perform the trouble diagnosis for DTC
U1000-00 or U1010-00.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. U1000-00: Refer to 

BCS-110, "DTC Description"

. U1010-00:

Refer to 

BCS-111, "DTC Description"

.

NO

>> GO TO 2.

2.

REPLACE BCM

Replace BCM. Refer to 

BCS-121, "Removal and Installation"

.

Can the system be initialized and can the engine be started with registered ignition key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

REPLACE ECM

Replace ECM. Refer to 

EC-430, "Removal and Installation"

 (MR20DD engine models), 

EC-806, "Removal and

Installation"

 (QR25DE engine models) or 

EC-1226, "Removal and Installation"

 (R9M engine models).

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B2193-00

CHAIN OF BCM-ECM
(Chain of body control module - engine 
control module)

Inactive communication between BCM and ECM

SEC-276

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2193 CHAIN OF BCM-ECM

>> INSPECTION END

B2195 ANTI-SCANNING

SEC-277

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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B2195 ANTI-SCANNING

DTC Description

INFOID:0000000010922292

DTC DETECTION LOGIC

POSSIBLE CAUSE

ID verification request out of the specified specification

FAIL-SAFE

Inhibit engine cranking

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-277, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010922293

1.

CHECK SELF DIAGNOSTIC RESULT 1

1.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

2.

Erase DTC.

3.

Perform DTC CONFIRMATION PROCEDURE for DTC B2195-00. Refer to 

SEC-277, "DTC Description"

.

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

>> GO TO 4.

3.

CHECK SELF DIAGNOSTIC RESULT 2

1.

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

2.

Select “Self Diagnostic Result” of “BCM” using CONSULT.

3.

Erase DTC.

4.

Perform DTC CONFIRMATION PROCEDURE for DTC B2195-00. Refer to 

SEC-277, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 4.

NO

>> INSPECTION END

4.

REPLACE BCM

Replace BCM. Refer to 

BCS-121, "Removal and Installation"

.

>> INSPECTION END

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B2195-00

ANTI-SCANNING
(Anti-scanning)

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

SEC-278

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2196 DONGLE UNIT

B2196 DONGLE UNIT

Description

INFOID:0000000010926594

BCM performs ID verification between BCM and dongle unit.
When verification result is OK, BCM permits cranking.

DTC Logic

INFOID:0000000010926595

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

(Dongle unit circuit is open or shorted.)

• Dongle unit

FAIL-SAFE

Inhibit engine cranking

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF.

3.

Turn ignition switch ON.

4.

Check DTC in Self-diagnosis result mode of BCM using CONSULT.

Is the DTC detected?

YES

>> Refer to 

SEC-278, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010926596

1.

PERFORM INITIALIZATION

1.

Perform initialization of BCM and registration of all mechanical keys using CONSULT.
For initialization and registration procedures, refer to CONSULT Immobilizer mode and follow the on-
screen instructions.

2.

Start the engine.

Dose the engine start?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK DONGLE UNIT CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and dongle unit connector.

3.

Check continuity between BCM harness connector and dongle unit harness connector.

4.

Check continuity between BCM harness connector and ground.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B2196-00

DONGLE NG
(Dongle unit not good)

The ID verification results between BCM and dongle unit is invalid.

BCM

Dongle unit

Continuity

Connector

Terminal

Connector

Terminal

M87

56

M53

1

Existed