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The ECM and the engine need to be from the same vehicle and then the ECM needs programming with your VIN Number and your mileage.
Code U0100
What Does the U0100 Code Mean? DTC U0100 stands for "Lost Communication with ECM/PCM 'A.'" It is triggered once there is a loss of communication between your PCM and a particular module. Once this happens, the vehicle may shut off and it may not restart unless you address the issue triggering the code.May 2, 2021
p0340 cam shaft position sensor malfunction,P0700 Transmission Control System Malfunction, P0703 Torque Converter/Brake Switch B Circuit Malfunction,
P1652 P 1 6 5 2 OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering O2 Sensor Heater Circuit Malfunction Turbocharger Boost Sensor A Circuit Low Crankshaft Position Sensor A Circuit Low Input
Hi the code P0703 is Brake switch B circuit malfunction. I`m not sure if this means the brake switch is faulty or the wiring to it is faulty. The brake switch is the best place to start ( but check the connections to the switch ) I hope i have been of help to you. john ( South Wales UK )
2004 chevy malibu crank no start/ scan computer found code b2930, basicly computor forgot the chip inbedded in key,turned on ign for ten minutes cycled key and car started has been fine for two(2) days
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