Lecky Guy Posted January 11, 2011 Report Posted January 11, 2011 Ok everyone, thanks for all previous help & yes I have tried to find the answer to this one on the forum but everything suggested I have tried but no joy (its a Mk 2 1.9TDi Zetec registered Dec 2000) Got Vag Com VCDS-Lite bits this afternoon, can communicate with the Engine & ABS Controller but not the Aux Htr Controller, I get a "No Responce From Controller" message, Have tried changing latency timing (suggested on other threads) from 16 down to 1 & up to 30, the comms test goes from poor to good with a very low figure but still no comms, cant beleive its a computer, driver, lead issue or I wouldnt be able to see the Engine/ABS units, help! John Quote
chrispb123456 Posted January 11, 2011 Report Posted January 11, 2011 Ok everyone, thanks for all previous help & yes I have tried to find the answer to this one on the forum but everything suggested I have tried but no joy (its a Mk 2 1.9TDi Zetec registered Dec 2000) Got Vag Com VCDS-Lite bits this afternoon, can communicate with the Engine & ABS Controller but not the Aux Htr Controller, I get a "No Responce From Controller" message, Have tried changing latency timing (suggested on other threads) from 16 down to 1 & up to 30, the comms test goes from poor to good with a very low figure but still no comms, cant beleive its a computer, driver, lead issue or I wouldnt be able to see the Engine/ABS units, help! JohnHiThe booster heater needs to have power going to it, check fuse 12 first if thats ok you need to look at the multi plug at the heater as the wires there corrode and break off, the large red lead is the main supply. Quote
Lecky Guy Posted January 24, 2011 Author Report Posted January 24, 2011 Once again excellent advice, many thanks the big red wire is indeed burnt out, will repair it over next couple of days & let you know how it goes Quote
Jayton Posted January 24, 2011 Report Posted January 24, 2011 Can you get some pics of the repair? I need to do this too :) Quote
chrispb123456 Posted January 25, 2011 Report Posted January 25, 2011 Can you get some pics of the repair? I need to do this too :)Hi JayEasiest way if it's just the red wire is to bypass the plug, ie, cut both red leads off the plugs, and using a suitable length of wire join the two wires together outside the multi connector using a suitable insulated connector. Quote
Lecky Guy Posted January 30, 2011 Author Report Posted January 30, 2011 Thats exactly how I did it: Removed heater (see other threads on this), had to open up the heater loom & go back 5cms to find undamaged cable then crimped on a 6mm female spade connector. On the car side I cut the cable off where it goes into the connector & crimped on a 10cm length of suitable sized cable with a male spade connector, covered with heatshrink & connected it all together to check it out. I got communication with the heater controller straight away, lots of faults logged but none relating to glow plug faults, cleared faults, shorted temp sensor in front of car & started engine, hey presto heater spins & tries to ignite, had to stop there as needed car so unplugged it all, will carry on nexrt week but so far so good, thanks to everyone for their help. Only thing my cheapo version of the vagcom sotware wont let me do is test seperate functions, i.e fuel pump & blower motor, is there a way to do this or do I need to buy the upgraded software Quote
Jayton Posted January 30, 2011 Report Posted January 30, 2011 Just got in from checking mine and seems the multi plug connector has damaged wires, a job for next weekend as I needed the car half way through trying to do it today. Quote
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