Breakdown diagnoses:
Read after the car that start take engine to dominate unit data, discover door of solar terms of the 3rd division opens the 3rd group of data degree it is 0 degrees. Change is similar breakdown of door of model a day marking one of the 24 divisions of the solar year in the traditional Chinese calendar as before, door of certain solar terms does not have a problem. Examine circuit figure, measure outlet of solar term door the 2nd input without voltage with discovery of the 5th foot (voltage of input of solar term door should be 5V)
Because disassemble,the meeting when water pump involves wiring harness of solar term door, wiring harness of solar term door is broken off suspicion to cause, immediately tears open next starting the ground charges unit, avometer measures solar term door to control the route between unit to engine, after measuring, without discovery circuit has open circuit appearance. Exchange again subsequently control unit breakdown to had been not eliminated with type engine.
Maintain door of solar term of at a stand, engine controls unit and wiring harness to do not have a problem, why can you do not have voltage output? After the course thinks, feeling possible is other sensor or sensor route gave an issue, to engine computer wrong signal causes, car is normal when pull in, appear after entering gas manifold and water pump through disassembling this breakdown problem still should go it is here. Tear open the manifold that take energy of life sensor of next one by one and circuitry to undertake checking again subsequently. The discovery in check out procedure enters place of outlet of wiring harness of sensor of position of gas manifold platform trap door to have damaged, and breakage has been linked together cause short circuit. the outfit after rehabilitate of wiring harness breakage breakdown of second-round exam car disappears, car is started it is normal to quicken.
Breakdown case study:
In first time outfit answer enters gas manifold when because did not notice damaged of wiring harness of sensor of position of platform trap door of the manifold that take energy of life, in outfit answer process the road twines the line together to cause short circuit, engine controls unit to identify sensor circuitry short circuit, stop to offer fundamental voltage to all sensor, sensor of since of solar term door is to carry out implement, so engine controls unit to also stop its power supply, cause engine to start the automatic flameout trouble after difficulty is started.
Breakdown processing technique:
Maintenance processing enters wiring harness of sensor of position of gas manifold platform trap door
You are opposite this how to look, leave a message below everybody is judged together
