Nissan Altima 2007-2012 Service Manual: B2193, P1612 chain of ecm-immu

Description

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.

ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if ignition switch is turned ON.

DTC Logic

DTC DETECTION LOGIC

NOTE: • If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-36, "DTC Logic".

• If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-37, "DTC Logic".

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions.

- CVT 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 >> Refer to SEC-69, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.REPLACE BCM

1. Replace BCM. Refer to BCS-96, "Removal and Installation".

2. Perform initialization with CONSULT-III.

For initialization, refer to CONSULT-III Operation Manual”.

Does the engine start? YES >> BCM is malfunctioning.

• Replace BCM. Refer to BCS-96, "Removal and Installation".

• Perform initialization again.

NO >> ECM is malfunctioning.

• Replace ECM.

• Perform ECM re-communicating function.

    B2192, P1611 ID discord, immu-ECM
    Description BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK. ECM prevents the engine from starting if the ID is not registered. BCM s ...

    B2555 stop lamp
    Description BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the engine start condition according to the stop lamp switch ON/OFF status. DTC Logic ...

    Other materials:

    Exterior and interior lights
    *1 Always check with the Parts Department at a NISSAN dealer for the latest parts information. *2 See a NISSAN dealer for assistance. 1. Front map light 2. Headlamp assembly 3. Park/ Turn signal light 4. Fog light (if so equipped)/ Day time running light (Canada only) 5. Step light 6. ...

    Ignition coil
    Exploded View 1. Ignition coil 2. Spark plug 3. Rocker cover (RH) 4. Rocker cover (LH) Removal and Installation LH REMOVAL 1. Remove engine room cover. 2. Disconnect ignition coil connector. 3. Remove the ignition coil. CAUTION: Never shock ignition coil. INSTALLATION Installatio ...

    Driving on snow or ice
    WARNING ● Wet ice (32°F, 0°C and freezing rain), very cold snow or ice can be slick and very hard to drive on. The vehicle will have much less traction or “grip” under these conditions. Try to avoid driving on wet ice until the road is salted or sanded. ● Whatever the condi ...