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P0409 Diagnostic Trouble Code Discussion for March 2010

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Trouble Ticket Help Requests for DTC P0409
Help Request Posted
2000 Ford F-150 4.2L MIL Lamp on VIN: 3FTZF1727Y
P0409: . Fleet vehicle came in for speedo inop and CEL on. Scan ecm and found multiple codes, probably ten or more. Found wiring harness to trans and O2 sensors pinched bewtween engine and trans. Wires cut and shorted. Spliced harness back together. Solved Speedo probl...
March 01, 2010