P0668 Lincoln DME Internal Fault Interior Temperature Sensor Signal

P0668 Lincoln DME Internal Fault Interior Temperature Sensor Signal

Possible causes
– Open or shorted interior temperature sensor circuit condition
– Poor interior temperature sensor electrical connection
– Faulty ECM /TCM
Tech description
Replace DME as sensor is internal component
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0668 Lincoln Description

PCM/ECM/TCM internal temperature sensor circuit low

Lincoln Vehicle:Lincoln Mark LT,Lincoln MKS,Lincoln MKX,Lincoln MKZ,Lincoln Navigator,Lincoln Navigator L,Lincoln Town Car,Lincoln Zephyr,
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