1998 · FUEL [13] · страница 14 из 104 · Открыть оригинал PDF ↗
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| Trouble code No. | Diagnosis item | Description | Major cause | Remarks (Symptoms, etc ) |
|---|---|---|---|---|
| 25 | Barometric pressure sensor | (1) Barometric pres- sure sensor signal voltage over 4.5 V (2) Barometric pres- sure sensor signal voltage less than 0.2V | Defective barometric pres- sure sensor (2) Open or short circuit in barometric pressure sensor circuit, or connector in loose contact (3) Defective engine control unit | Unstable idling* Poor acceleration* Poor startability* |
| 31 | Detonation sen- sor <6G74- SOHC 24 Valve Enginez | Abnormal detonation sensor signal voltage | Defective detonation sensor Open or short circuit in deto- nation sensor circuit; Or con- nector in loose contact 3) Defective engine control unit | Poor acceleration* |
| 41 | Injector | Injector is not driven for more than four con- secutive seconds dur- ing engine cranking or idling operation | Defective injector Open or short circuit in injec- tor circuit, or connector in loose contact (3) Defective engine control unit | Poor idling Poor acceleration startability Poor |
| 44 | Ignition coil and power transistor unit for 1-4 cylinders | With the engine run- ning; no ignition signal is input (except in cases where no igni- tion signal is input to all the cylinders) | Defective ignition coil (2) Open or short circuit in pri- mary ignition circuit; or Con- nector in loose contact (3) Defective power transistor unit (4) Defective engine control unit | Unstable idling* Poor acceleration* Poor startability* |
| 52 | Ignition coil and power transistor unit for 2-5 cylinders | With the engine run- ning; no ignition signal is input (except in cases where no igni- tion signal is input to all the cylinders) | Defective ignition coil Open or short circuit in pri- mary ignition circuit, or con- nector in loose contact (3) Defective power transistor unit (4) Defective engine control unit | Unstable idling* Poor acceleration* Poor startability* |
| 53 | Ignition coil and power transistor unit for 3-6 cylinders | With the engine run- ning; no ignition signal is input (except in cases where no igni- tion signal is input to all the cylinders) | Defective ignition coil Open or short circuit in pri- mary ignition circuit; or con- nector in loose contact (3) Defective power transistor unit (4) Defective engine control unit | Unstable idling* Poor acceleration* Poor startability* |
| 54 | Immobilizer sys- tem | Communication prob- lem between the engine control unit and the immobilizer-ECU | (1) Malfunction of communica- tion wire between the engine control unit and immobilizer- ECU (2) Malfunction of immobilizer- ECU (3) Malfunction of engine control unit | Starting is impossible |
| 59 | Oxygen sensor <rear> | Even if engine has been warmed up, oxY- sensor signal volt- gen age does not change to more than 0.1 V | Defective oxygen sensor Open or short circuit in oxy gen sensor circuit, or con- nector in loose contact (3) Defective engine control unit | Poor exhaust emission purifying performance |
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