P1643 Chrysler Engine Speed Output Circuit
Possible causes
– Reprogram computer – Faulty ECM
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1643 Chrysler Description
There is a communication problem with Control Area Network (CAN) link from the Engine Control Module (ECM)to the Transmission Control Module (TCM)
Chrysler Vehicle:Chrysler 200,Chrysler 300,Chrysler 300M,Chrysler Crossfire,Chrysler PT Cruiser,Chrysler Town & Country,Chrysler Voyager