dan ini hanya berlaku untuk mobil yang memiliki ECU (sudah system injeksi)
Code 11 Momentary interruption in power supply to ECU (electronic control unit or computer) up to 1991
Code 12 Engine revolution signal missing : Masalah di Delco
Code 13 Rpm signal to ecu missing above 1000 rpm : Masalah di Delco
Code 14 Igniter signal to ecu missing : Masalah di sirkuit pengapian
Code 16 A/T control signal missing from ecu : Masalah di sensor Matic
Code 21 Main oxygen sensor signal fault : Masalah di Sensor Oksigen
Code 22 Water temperature sensor circuit fault : Masalah di Thermostat
Code 23 and 24 Intake air temperature signal fault : Masalah di Mass Air Flow Sensor
Code 25 Air/fuel ratio LEAN : Masalah di sensor CO
Code 26 Air/fuel ratio RICH : Masalah di sensor CO
Code 27 Sub-oxygen sensor signal or heater circuit fault : Masalah di sensor oksigen
Code 28 No.2 oxygen sensor/heater signal fault : Masalah di sensor oksigen
Code 31 and 32 Air flow meter circuit or Vacuum sensor signal fault : Masalah di MAP / Vacuum sensor
Code 34 and 36 Turbo-charging pressure signal fault
Code 35 Altitude compensation sensor signal fault : Masalah di Throtlle body
Code 41 Throttle position circuit fault : Masalah di sensor TPS
Code 42 Vehicle speed sensor circuit : Masalah di Sensor Speed / Kabel Speedometer
Code 43 No starter signal to the ecu : Masalah di Dinamo Stater
Code 52, 53 and 55 Knock sensor fault : Masalah di Knock Sensor
Code 71 EGR system malfunction : Masalah di Knalpot / Exhaust
Code 72 Fuel cut solenoid signal fault : Masalah di selenoid karburator
Code 78 Fuel pump control signal fault : Masalah di Fuel Pump
Code 81, 83, 84 and 85 TCM communication fault : Masalah di Transmisi mobil
Code 12 Engine revolution signal missing : Masalah di Delco
Code 13 Rpm signal to ecu missing above 1000 rpm : Masalah di Delco
Code 14 Igniter signal to ecu missing : Masalah di sirkuit pengapian
Code 16 A/T control signal missing from ecu : Masalah di sensor Matic
Code 21 Main oxygen sensor signal fault : Masalah di Sensor Oksigen
Code 22 Water temperature sensor circuit fault : Masalah di Thermostat
Code 23 and 24 Intake air temperature signal fault : Masalah di Mass Air Flow Sensor
Code 25 Air/fuel ratio LEAN : Masalah di sensor CO
Code 26 Air/fuel ratio RICH : Masalah di sensor CO
Code 27 Sub-oxygen sensor signal or heater circuit fault : Masalah di sensor oksigen
Code 28 No.2 oxygen sensor/heater signal fault : Masalah di sensor oksigen
Code 31 and 32 Air flow meter circuit or Vacuum sensor signal fault : Masalah di MAP / Vacuum sensor
Code 34 and 36 Turbo-charging pressure signal fault
Code 35 Altitude compensation sensor signal fault : Masalah di Throtlle body
Code 41 Throttle position circuit fault : Masalah di sensor TPS
Code 42 Vehicle speed sensor circuit : Masalah di Sensor Speed / Kabel Speedometer
Code 43 No starter signal to the ecu : Masalah di Dinamo Stater
Code 52, 53 and 55 Knock sensor fault : Masalah di Knock Sensor
Code 71 EGR system malfunction : Masalah di Knalpot / Exhaust
Code 72 Fuel cut solenoid signal fault : Masalah di selenoid karburator
Code 78 Fuel pump control signal fault : Masalah di Fuel Pump
Code 81, 83, 84 and 85 TCM communication fault : Masalah di Transmisi mobil
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