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Home >> Mitsubishi >> 2008 >> Lancer ES, Automatic CVT >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Wireless Control Module (WCM)) >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC C1901: Vehicle speed information abnormality >> DTC Set Condition
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DTC Set Condition

WARNING: This page is about a different car, the 2009 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

WCM receives the wheel speed information from ABS-ECU via the CAN-bus line. Although WCM receives the information that the wheel is not currently rotated from ABS-ECU, if the TPMS transmitter sends the information that the wheel is rotated, this code is set.