###Diagnose JB-JL
Short the wire at the terminal socket.
Turn the key to ON position. Then count how many times the engine check light blink. If there is no problem with all the sensors, the engine check light will keep on blinking without pausing while if there is a problem with either one of the sensor, the engine check light will blink then pause and then blink again. This is to show what is the engine error code. For instant, if the engine check light blink 5 times then pause and then blink 2 times again, this indicate that the error code is 52.
| Code | Diagnose Item | Diagnose Content | Trouble Area |
|---|---|---|---|
| 13 | Engine Revolution Signal | When engine revolution signal is not input while the starter switch is ON | Cam angel sensor and circuit |
| 21 | Oxygen sensor signal | When input signal from Oxygen sensor shows too lean. Air to fuel ration under certain condition | Oxygen sensor circuit and Oxygen sensor |
| 31 | Pressure sensor signal | When input signal from the pressure sensor becomes more than 4.9v or less than 0.7v | Pressure sensor circuit and pressure sensor |
| 41 | Throttle position sensor signal | When both idle switch, power switch position sensor become ON condition. | Throttle position sensor circuit and Throttle position sensor and ECU |
| 42 | Cooling water temperature signal | When the engine cooling water temperature sensor circuit become OPEN or SHORTED | Water temp sensor circuit, water temp sensor |
| 43 | Intake air temp signal | When the intake air temp sensor circuit becomes OPEN and SHORTED | Air temp sensor circuit, air temp sensor |
| 44 | A/C evaporator temp sensor | When the A/C evaporator temp sensor circuit exhibits OPEN or SHORTED | A/C evaporator temp sensor circuit, A/C evaporator sensor |
| 45 | A/C Compressor | When the A/C switch is turn ON, the rotation signal from the A/C compressor becomes too low because of slipping of the magnet clutch or overload | A/C magnet clutch and A/C lock sensor circuit |
| 51 | Switch signal | When the A/C switch is turn ON, the idle switch is turned off with the test terminal of the diagnostic connector SHORTED. However no more memoryzing will take place | A/C switch, Idle switch circuit, Throttle position sensor |
| 52 | Vehicle speed sensor signal | When the vehicle speed signal circuit exhibits OPEN wire or SHORTED circuit | Vehicle speed sensor circuit and vehicle speed sensor |
| 81 | Immobilizer signal | When the rolling codes cannot be exchanged between the EFi ECU and the Immobilizer ECU or the rolling codes are not matched | Wire harness between the immobilizer ECU and EFi ECU. Immobilizer ECU. EFi ECU |
| 83 | Immobilizer signal | When the rolling codes cannot be exchanged in the EFi ECU | EFi ECU |