- Joined
- Feb 2, 2009
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- jonathan-butler.co.uk
would the engine ECU still allow the coding if it wasn't detecting it?
Yes it does.
would the engine ECU still allow the coding if it wasn't detecting it?
the ecu is locked out so you may need to disconnect it
With out realising I entered the wrong value for the login, this then timed me out and error 22, hence I travel with three lap tops or did do before every tom **** and harry started fitting cruise lol
Assume you tested the stalk functions with measuring blocks?
It will show the signals from the stalk to the steering cu, doesnt mean it will activate though, just proves one side is working.
If you cant even see these signals in the steering cu measuring blocks, then its either fitted wrong, damaged pins or faulty parts, forget engine module atm, cause until you see those MB's properly, it is irrelevant what its coded for in engine.
check the wire but back pin it circuit disconnected from the steering control unit to the engine ecu
look for a resistance value below 0.030 ohms
if this is below check the wire for short to earth/+
if this is ok leave the ecu disconnected for a while and retry
be careful when probing the wires not to open the contacts, hence back pining will reduce this, at the steering control unit plug check with the connector plugged in either side for loose/lost connection by wiggling the plug with the multi meter connected
other than that i can only suggest the ecu is defective but suggest taking to your local audi dealer to see if vas can enable the cruise lock function in the ecu.
Thanks for the reply mate, sorry if this is a silly question but by the above do you mean, use the probes on the multimeter at the back of the plug/pin (where it goes into the plug) to test for 0.030 ohms, this can be done via red probe in the back of pin 13 (Black and white cable) and black probe to an earthing cable or point in the car?
The only thing that's confused me during all this is that it was said cruise could be activated on the engine ecu without cruise being installed on the car, so would the black and white pin 13 cable cause this much trouble?
I'm willing to pay for the problem to be sorted at this point, but I have a feeling it will cost more to resolve than cruise control is worth.
Whats his engine code, year of car & gearbox code?
has anyone considered what i said a long long time ago
run the wire direct to the engine ecu from the steering control unit like you have to do on tt
Can this be done?
straight from Pin 13 from the steering control module to the ECU located under the plastic casing in the engine bay?
Yes mate - you will need that wire back that I gave you in the first place !!!! lol
Not quite square one - we now know you have the most odd-ball A3, wired like a TT, that needs TLC applied to make it do what you want !!
Can you do the wiring by yourself or do you need some help ?