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-235, "DTC Logic".

• If DTC B26E1 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-236, "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-309, "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-309, "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-1048, "BASIC INSPECTION : Special Repair Requirement" (VQ35DE), EC-560, "BASIC INSPECTION : Special Repair Requirement" (QR25DE except California), EC-24, "BASIC INSPECTION : Special Repair Requirement" (QR25DE California).

>> Inspection End.

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