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Home >> Jeep >> 2008 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTCS U0001 To U1418, System Checks, Checking Pcm Power And Ground Circuits, Engine Cranks But No Start >> U1412-Implausible Vehicle Speed Signal Received >> Possible Causes

Possible Causes

Possible Causes 
CAN C BUS CIRCUIT SHORTED
CAN C BUS CIRCUIT OPEN
ABS MODULE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.

The ABS Module sends vehicle speed information over the CAN C Bus circuit to the PCM.