Nissan Altima 2007-2012 Service Manual: B26e1 no reception of engine status signal

Description

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

DTC Logic

DTC DETECTION LOGIC

NOTE: • If DTC B26E1 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-433, "DTC Logic".

• If DTC B26E1 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-434, "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 the brake pedal.

2. Check “Self diagnostic result” with CONSULT-III.

Is DTC detected? YES >> Refer to SEC-501, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

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-501, "DTC Logic".

Is the DTC B26E1 displayed again? YES >> GO TO 2

NO >> Inspection End.

2.REPLACE ECM

1. Replace ECM.

2. Refer to EC-560, "BASIC INSPECTION : Special Repair Requirement" (QR25DE except California) or EC-24, "BASIC INSPECTION : Special Repair Requirement" (QR25DE California).

>> Inspection End.

    B261A push-button ignition switch
    Description IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hardwire input. BCM compares the 2 signals ...

    Power supply and ground circuit
    BCM Diagnosis Procedure 1. CHECK FUSE AND FUSIBLE LINK Check if the following BCM fuse or fusible link are blown. Is the fuse or fusible link blown? YES >> Replace the blown fuse or fus ...

    Other materials:

    Satellite radio reception (if so equipped)
    When the satellite radio is used for the first time or the battery has been replaced, the satellite radio may not work properly. This is not a malfunction. Wait more than 10 minutes with satellite radio ON and the vehicle outside of any metal or large building for satellite radio to receive a ...

    Changing engine oil
    QR25DE engine 1. Park the vehicle on a level surface and apply the parking brake. 2. Start the engine and let it idle until it reaches operating temperature, then turn it off. 3. Remove the oil filler cap A by turning it counterclockwise. 4. Place a large drain pan under the drain plug B . ...

    Diagnosis system (BCM)
    COMMON ITEM Diagnosis Description BCM CONSULT-III FUNCTION CONSULT-III performs the following functions via CAN communication with BCM. SYSTEM APPLICATION BCM can perform the following functions for each system. NOTE: It can perform the diagnosis modes except the following for all sub s ...