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Home >> Mitsubishi >> 2021 >> RVR LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Wireless Control Module (WCM) - (With Diagnostics) >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC B1731: Engine control module communication timeout >> Technical Description (Comment)
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Technical Description (Comment)

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.