Code 11 Momentary interruption in power supply to ECU (electronic control unit or computer) up to 1991Code 12 Engine revolution signal missing : Masalah di DelcoCode 13 Rpm signal to ecu missing above 1000 rpm : Masalah di DelcoCode 14 Igniter signal to ecu missing : Masalah di sirkuit pengapianCode 16 A/T control signal missing from ecu : Masalah di sensor MaticCode 21 Main oxygen sensor signal fault : Masalah di Sensor OksigenCode 22 Water temperature sensor circuit fault : Masalah di ThermostatCode 23 and 24 Intake air temperature signal fault : Masalah di Mass Air Flow SensorCode 25 Air/fuel ratio LEAN : Masalah di sensor COCode 26 Air/fuel ratio RICH : Masalah di sensor COCode 27 Sub-oxygen sensor signal or heater circuit fault : Masalah di sensor oksigenCode 28 No.2 oxygen sensor/heater signal fault : Masalah di sensor oksigenCode 31 and 32 Air flow meter circuit or Vacuum sensor signal fault : Masalah di MAP / Vacuum sensorCode 34 and 36 Turbo-charging pressure signal faultCode 35 Altitude compensation sensor signal fault : Masalah di Throtlle bodyCode 41 Throttle position circuit fault : Masalah di sensor TPSCode 42 Vehicle speed sensor circuit : Masalah di Sensor Speed / Kabel SpeedometerCode 43 No starter signal to the ecu : Masalah di Dinamo StaterCode 52, 53 and 55 Knock sensor fault : Masalah di Knock SensorCode 71 EGR system malfunction : Masalah di Knalpot / ExhaustCode 72 Fuel cut solenoid signal fault : Masalah di selenoid karburatorCode 78 Fuel pump control signal fault : Masalah di Fuel PumpCode 81, 83, 84 and 85 TCM communication fault : Masalah di Transmisi mobil