Code No. |
System |
Diagnosis |
Trouble Area |
|---|---|---|---|
| 11 | ECU (+B) | Wire severance, however slight, in +B (ECU) Momentary power interruption to ECU |
1. Main relay circuit 2. Main relay 3. ECU |
| 12 | RPM signal | No G1,G2,Ne signal to ECU within several seconds after engine is cranked. | 1. Distributor circuit 2. Distributor 3. Starter signal circuit 4. ECU |
| 13 | RPM signal | No Ne signal to ECU within several seconds after engine reaches 1000 rpm. | 1. Distributor circuit 2. Distributor 3. Starter signal circuit 4. ECU |
| 14 | Ignition signal | No signal from igniters three times in succession | 1. Igniter Circuit (+B, 1Gt, 1Gf) 2. Igniter 3. ECU |
| 21 | O2 sensor | Engine reaches 1500 rpm and coolant is >50c for a period of time (engine temp stabilised) and O2 sensor shows lean for several seconds | 1. Oxygen circuit (O2,V2) 2. O2 sensor 3. ECU |
| 22 | Water thermo sensor signal | Open or short circuit in coolant temperature sensor | 1. Coolant temp. circuit 2. Coolant temp. sensor 3. ECU |
| 24 | Intake air thermo sensor signal | Open or short circuit in intake air temperature sensor | 1. Air intake temp. circuit 2. Air intake temp sensor 3. ECU |
| 31 | Air flow meter signal | Open circuit in E2 or Vc and E2 short circuited when idle points are closed | 1. Air flow meter circuit 2. Air flow meter 3. ECU |
| 32 | Air flow meter signal | Open circuit in E2 or Vc and Vs short circuited | 1. Air flow meter circuit 2. Air flow meter 3. ECU |
| 34 | Over Boost (Air to Water Intercooler) | Water temp. > 70c and high turbo boost has resulted in fuel cut (Note – This signal may appears instead of 31) | 1. Over boost circuit 2. ECU |
| 35 | Pressure sensor | Water temp. > 70c and low intake airflow and high boost pressure. | 1. Pressure sensor circuit 2. Pressure sensor 3. ECU |
| 41 | Throttle position sensor | Simultaneous IDL and PSW signal to ECU | 1. Throttle position sensor circuit 2. Throttle position sensor 3. ECU |
| 42 | Vehicle speed sensor signal | Signal informing ECU that vehicle speed is 2 km/h or less has been input to the ECU for 5 seconds with engine running at 3,000 rpm or more | 1. Vehicle speed sensor circuit 2. Vehicle speed sensor 3. ECU |
| 43 | Starter signal (+B) | No vehicle speed and no STA signal to ECU when engine is running over 800rpm | 1. Main relay circuit 2. IG switch circuit (starter) 3. IG switch 4. ECU |
| 51 | Switch signal | Air conditioning switch on or gear selector not in N or Pk during diagnostic check | |
| 52 | Knock sensor | Engine at > 2000 rpm and no signal received from knock sensor | 1. Knock sensor circuit 2. Knock sensor 3. ECU |
| 54 | Intercooler computer | No signal received from water intercooler computer | 1. Intercooler computer circuit 2. Intercooler computer 3. ECU |