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Home >> Mitsubishi >> 2012 >> Lancer Evolution MR >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 29 (Wireless Control Module (WCM) - Lancer) >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC B1731: Engine Control Module Communication Timeout >> Technical Description (Comment)

Technical Description (Comment)

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If no data (ETACS transmits engine random number data to WCM via the CAN bus lines) is received from the engine control module via the CAN bus lines when the ignition switch is turned to ON position, it is judged as abnormal.

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