P1603 Citroen ECU-TCU Communication Error

P1603 Citroen ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Citroen Description A communication…

P1603 Chrysler ECU-TCU Communication Error

P1603 Chrysler ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Chrysler Description A communication…

P1603 Chevrolet ECU-TCU Communication Error

P1603 Chevrolet ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Chevrolet Description A communication…

P1603 Cadillac ECU-TCU Communication Error

P1603 Cadillac ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Cadillac Description A communication…

P1603 Buick ECU-TCU Communication Error

P1604 Buick No ID From ECU Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick…

P1603 BMW ECU-TCU Communication Error

P1603 BMW ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 BMW Description A communication…

P1603 Audi ECU-TCU Communication Error

P1603 Audi ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Audi Description A communication…

P1603 Acura ECU-TCU Communication Error

P1603 Acura ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Acura Description A communication…

P1603 ECU-TCU Communication Error

P1603 ECU-TCU Communication Error Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1603 Description A communication line exists…