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Home >> Mitsubishi >> 2015 >> RVR ES, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (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)

WARNING: This page is about a different car, the 2017 Mitsubishi Lancer, 2016 Mitsubishi Lancer, and 2015 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

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.