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Home >> Mitsubishi >> 2014 >> Lancer Evolution GSR >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 25 (Wireless Control Module (WCM) - With Diagnostics - Lancer) >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC B1731: Engine control module communication timeout >> Technical Description (Comment)
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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.