P1681 Cadillac Control Module Not Programmed
Possible causes
– Fualty ECM
– Wrong ECM for vehicle
– Service program error
– Wrong ECM for vehicle
– Service program error
What about the obd code?
Engine Control Module (ECM) program does not recognize the vehicles id, or the id is missing in the ECM.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1681 Cadillac Description
This diagnostic trouble code (DTC) indicates a programming error within the control module.
Cadillac Vehicle:Cadillac CTS Coupe, Cadillac CTS-V Coupe , Cadillac Eldorado , Cadillac Escalade EXT , Cadillac ATS , Cadillac CTS , Cadillac CTS Sedan , Cadillac CTS Sport Sedan , Cadillac CTS-V , Cadillac CTS-V Sedan , Cadillac Catera , Cadillac DTS , Cadillac DeVille , Cadillac STS-V , Cadillac STS , Cadillac Seville , Cadillac XTS , Cadillac XLR , Cadillac XLR Platinum , Cadillac Escalade , Cadillac SRX