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:

    B2617 starter relay circuit
    Description Located in IPDM E/R, it runs the starter motor. The starter relay is turned ON by the BCM when the ignition switch is in START position. IPDM E/R transmits the starter relay ON signal to BCM via CAN communication. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2617 is displa ...

    Intelligent key system/engine start function
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART SYSTEM DESCRIPTION • The engine start function of Intelligent Key system is a system that makes it possible to start and stop the engine without removing the key. It verifies the electronic ID using two-way communications w ...

    Bose speaker AMP
    Removal and Installation - Coupe REMOVAL 1. Disconnect the negative battery terminal. 2. Remove the trunk floor carpet and spare tire cover. Refer to INT-23, "Removal and Installation". 3. Remove the RH trunk floor spacer. 4. Remove the Bose speaker amp. screws (A), then disc ...