Audi Repair Questions? Ask a Mechanic for Answers ASAP
Dear customer, a revision of the wiring loom consists in dismantling all the wiring from the computer (TCM) to the sensors and connectors of the transmission box, this is to verify that you do not have physical problems of corrosion or broken wires that I am seeing the signal in the vehicle, I'm not sure if you have the knowledge to perform this process.Another problem that I can recognize is that maybe the scanner is not having a good communication with the vehicle's computer so I would like to know the characteristics of the scanner if you can tell me please.
Dear customer, sorry for my delay.First I recommend that you start with a computerized diagnosis with a more updatedcomputer becasue software problems can generate these types of codes, it turns out that the scanner detects that there is no communication in the systems is because thecar computers is more updated than the scanner so it does not have the propper software to access.Do you understand me, dear client?
Sorry for the delay, Dear customer.No problem, although is a more difficult work we can do it by ourself. What we are going to do is first review all the connectors of the ecu and the tcm, then you will follow that cable guide to where they reach their connectors, this way you will find both the masses how the different sensors of the vehicle, In any case the masses/grounds you will find it stuck to the chassis and the in the case/cover of the gearbox. but the ideal is to make a complete revision to the wire loom to rule out that the repaired tcm has not generated again a problem.have you understood me dear customer?
Dear customer, first do you know where to find the tcm? if I'm not mistaken, it's on the passenger's side below the board
I don't have in my files the diagram of this model dear customer, soo i cannot indicate you with accuracy. But according to the fault we need to check all what i indicated you before starting from the TCM and following the wiring loom
Dear customer, you are going to disassemble the wire loom, do you understand me? I mean the wiring, remove and clean the tips and connectors, if you can replace them, only those that are sulfated or damaged( splitted, melted, burnt etc), When we have communication problems many times are problems in the connectors or in the wiring. We star following the loom from the TCM untill where it arrives to check it completely.That's why i indicated that it is good to disassemble it, do you understand me?
Great dear customer, for this we need to be able to disassemble the whole TCM. Do you know how to do it?
Yes dear customer, I want you to verify the pins of the TCM and verify the board, you told me that the TCM went through a revision, I would like you to take advantage of it and verify it again
Great, i will be attentive. Regards.