DTC C1979
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DTC C1979
2010 Ford F150 5.4L. Got a new code scanner (BlueDriver) & ran codes for 1st time. Getting 4x4 Control Module Code C1979 IWE Solenoid Circuit Failure: Circuit Open. 4WD appears to be working fine, switches on & off. Any ideas as to the problem indicated by DTC.
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rustyandleaking
1968-Present E-Series Van/Cutaway/Chassis
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Dec 30, 2016 01:16 PM