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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTCS U1411 To U1418, System Checks, Engine Cranks But No Start, Symptom Tests >> U1411-Implausible Fuel Volume Signal Received >> Possible Causes

Possible Causes

Possible Causes 
CAN B OPEN OR SHORTED
CLUSTER MODULE
FRONT CONTROL MODULE (FCM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

The Front Control Module isn't receiving a fuel volume signal over CAN B from the Cluster Module. The FCM has to send the PCM a fuel volume signal over CAN C. The signal the FCM sends over CAN C is implausible.

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