Nissan Versa (N17): B2195 Anti-scanning

Nissan Versa 2nd generation (N17) Service Manual / Body exterior, doors, roof & vehicle security / Security control system (SEC) / B2195 Anti-scanning

DTC Logic

DTC DETECTION LOGIC

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 "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.CHECK SELF DIAGNOSTIC RESULT 1

1. Select "Self Diagnostic Result" of "BCM" using CONSULT.

2. Erase DTC.

3. Perform DTC Confirmation Procedure for DTC P2195. Refer to SEC "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 >> GO TO 4.

3.CHECK SELF DIAGNOSTIC RESULT 2

1. Obtain the customer's 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. Refer to SEC "DTC Logic".

Is DTC detected?

YES >> GO TO 4.

NO >> Inspection End.

4.REPLACE BCM

1. Replace BCM. Refer to BCS "Removal and Installation".

2. Perform initialization of BCM and registration of all ignition keys using CONSULT.

For initialization and registration procedures, refer to CONSULT Immobilizer mode and follow the onscreen instructions.

>> Inspection End.

B2193, P1612 Chain of ECM-IMMU

Description BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with ECM if ignition switch is turned ON and starts the engine if the ID is OK. ...

B2196 Dongle unit

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

Other materials:

Position switch
Removal and Installation REMOVAL Drain gear oil. Refer to TM, "Draining". Disconnect the harness connector (A) from position switch. Remove position switch from transaxle case. INSTALLATION Apply recommended sealant to threads of position switch.    &nbs ...

Line pressure test
Work Procedure INSPECTION Inspect the amount of engine oil. Replenish the engine oil if necessary. Refer to LU, "Inspection". Drive for about 10 minutes to warm up the vehicle so that the A/T fluid temperature is to 50 to 80C (122 to 176F). Inspect the amount of ATF. Rep ...

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