Steering wheel of Ao Di Q5 cannot solve lock appearance to cannot illume
Feedback according to student this car was to clean interior trim midday, but after cleaning, be being mixed before clean can be started, and not have unusual, everything is normal, in process of drive a vehicle, cannot start after flameout, change direction dish cannot solve a lock, and appearance cannot electrify
Student provides 1 basis breakdown phenomenon undertakes breakdown is diagnosed
Press above all move a remote controller to be able to open lock and closedown and double flashlight can twinkle, demonstrative key and comfortable system 393 it is to be in match condition and 393 can drive double flashlight twinkles explain comfortable control is unit system of 393 bus line does not have a problem, and can wake up J519 drive forehead turn to the lamp, after inserting lock barrel, do not have any reaction, appearance does not have any clew, breakdown reason may be entered in E415 and start accredit switch, j764 is dynamoelectric change control to unit and J518 of system of guard against theft (clew J518 is compositive with 393) , knew to maintain train of thought to undertake be not diagnosticed, let student point start switch by, but according to student description this car starts switch without one key, ao Di Q5 has two kinds of configuration, class key mixes a kind of height not to take advanced key
02 diagnose with eliminate
Use detector undertakes reading extraction malfunction code
Student is attacked in direct point enter 46 comfortable systems the module central, the detector cannot be entered, why cannot be entered? Here says a little skill to everybody, if ignite switch was not opened, so 393 be to cannot undertake diagnostic, because system of this 393 moment cannot be waked up, so diagnostic appearance cannot be entered, this moment should open double flashlight switch to wake up 393 control unit, the main control unit because of double flashlight is 393, this moment uses a detector to enter again, can read take trouble
393 systems are in after passing afore-mentioned operations, the detector can be entered normally, read take malfunction code to be as follows
Can read normally in 393 systems take trouble, it is scuttle breakdown, normal circumstance is scuttle control unit and system of guard against theft are nonexistent any correlation, but the way that 393 systems have line of a lot of LIN, if this two systems are in same a LIN, can bring about this LIN line to break down, whether be to decide a spur track, through teaching oneself manual inquiry, not was in same a spur track, eliminate scuttle system to affect burglarproof possibility
Use detector is entered (enter reach the license that start) read take malfunction code to be as follows
J518 of unit of control of guard against theft is compositive with 393, so module is a whole, but cent of diagnostic address code diagnoses a system for two, in enter system of guard against theft reach the license that start to read take malfunction code to be breakdown of E415 switch electric equipment, tear open next E415 to lock up pail of examination to discover interior has slight water mark, after use air compresses air to undertake blowing working, storage battery cuts off the power, trouble removal!
Breakdown summary
In whole trouble removal process, we used a lot of diagnostic train of thought and problem analysis measure, showing fundamental principle is how important, analysing the working technological process that must want to know principle and electric equipment to breakdown, if be opposite normal working principle is punch-drunk, so a very little trouble, to every technician it is difficulty breakdown!
