P1643 Dodge Engine Speed Output Circuit
Possible causes
– Reprogram computer – Faulty ECM
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1643 Dodge Description
There is a communication problem with Control Area Network (CAN) link from the Engine Control Module (ECM)to the Transmission Control Module (TCM)
Citroen Vehicle:Dodge Caravan,Dodge Caliber,Dodge Challenger,Dodge Dakota,Dodge Durango,Dodge Journey,Dodge Nitro,Dodge Ram 2500