Description
BCM receives the engine status signal from ECM via CAN communication.
DTC DETECTION LOGIC
NOTE:

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait 2 seconds or more.
2. Check DTC in Self Diagnostic Result mode of BCM using CONSULT.
Is DTC detected?
YES >> Go to SEC "Diagnosis Procedure".
NO >> Inspection End.
1.INSPECTION START
1. Turn ignition switch ON.
2. Select Self Diagnostic Result mode of BCM using CONSULT.
3. Touch ERASE.
4. Perform DTC CONFIRMATION PROCEDURE for DTC B260F. Refer to SEC "DTC Logic".
Is DTC detected?
YES >> GO TO 2.
NO >> Inspection End.
2.REPLACE ECM
1. Replace ECM.
Refer to EC "Removal and Installation".
2. Perform "ADDITIONAL SERVICE WHEN REPLACING ECM".
Refer to EC "Work Procedure".
>> Inspection End.
Basic inspection
Work Procedure
1.INSPECTION START
1. Check service records for any recent
repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
Harness con ...
Power supply and ground circuit
Diagnosis Procedure
1.CHECK GROUND CONNECTION
Turn ignition switch OFF.
Check ground connection E. Refer to Ground Inspection in GI, "Circuit
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ECM G ...