P1631 BUICK Theft Deterrent Start Enable Signal Not Correct Symptoms – Engine Light ON (or Service Engine Soon Warning Light) BUICK Technical Service Bulletins for P1631 code 2004 BUICK RAINIER ENGINE AND ENGINE COOLING:ENGINE Post navigation ← P1135 FORD Pedal Position Sensor A Circuit IntermittentP1870 Transmission Component Slipping → Search for: Categories OBD II Codes FAQs OBD II Wiki OBDII Body(B) Codes OBDII Chassis(C) Codes OBDII Network(U) Codes OBDII Powertrain(P) Codes Pages OBD2 (B0001-B2800) OBD2 (C0001-C3000) OBD2 (P0001-P0999) OBD2 (P1000-P2000) OBD2 (P2001-P3500) OBD2 (U0001-U2500) Vehicleacura AUDI BMW buick cadillac chevrolet chrysler dodge ford gmc honda hummer hyundai infiniti ISUZU JAGUAR jeep kia lexus MAZDA MITSUBISHI nissan P0101 P0102 P0122 P0123 P0171 P0174 P0302 P0303 P0304 P0305 P0306 P0335 P0340 P0720 P1111 pontiac saturn scion SUBARU SUZUKI toyota VOLKSWAGEN VOLVO