GIAC

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Topic: GIAC (Read 4589 times)

los93sol

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	GIAC « on: July 11, 2011, 09:06:15 AM »

Previously had a GIAC flash on my car and now have a tune from VAST, but I would like to try out some other tunes. That said, I want to backup my VAST tune, but it seems from the GIAC flash that was originally on the ECU that reading has been disabled on my ECU. I even said to hell with it and tried to write it anyways and it still will not work. I read around and saw where it looks like this is common on ECU's that had a GIAC flash in the past and that a workaround was being worked on, is there any way to read this thing out without a Galletto cable? What about overwriting it?


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Snow Trooper

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	Re: GIAC « Reply #1 on: July 11, 2011, 09:40:07 AM »

I have no issue reading or writing to new and old giac stuff via the nefmoto software. even the encrypted stuff. what I have found works best is to fully reset the ecu power wise. i.e. take the ecu out for a few minutes or disconnect the battery cables for that time. once you power back up go straight into the operation that you want to do and it should work.


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Jason

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Breaks everything!

	Re: GIAC « Reply #2 on: July 11, 2011, 11:07:07 AM »

Some tuners disable the function used to read the tune. Galletto in boot mode or a willem programmer is the only solution I know of. You may be able to use the vag kkl cable and the C167 boot mode tools to do it, but I've never looked into that since I already had a Galletto cable.


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los93sol

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	Re: GIAC « Reply #3 on: July 11, 2011, 11:22:31 AM »

Just tried that and it did change what I was getting, before my logs didn't show anything other than No response to tester present messages, now I am actually getting rejected...here is a log, the full read and memory validation functions are where I fail out.

11/Jul/2011 02:11:06.830: USER: Successfully changed to new communication timings.
11/Jul/2011 02:11:06.834: USER: Requesting security access.
11/Jul/2011 02:11:06.837: LOG: Sent message with service ID SecurityAccess
11/Jul/2011 02:11:06.883: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:06.885: LOG: Received negative response for service ID: SecurityAccess, with response code: GeneralReject
11/Jul/2011 02:11:06.888: USER: ECU reports that security access request was rejected.
11/Jul/2011 02:11:06.891: LOG: Starting diagnostic session type: ProgrammingSession
11/Jul/2011 02:11:06.893: USER: Starting diagnostic session.
11/Jul/2011 02:11:06.895: LOG: Sent message with service ID StartDiagnosticSession
11/Jul/2011 02:11:06.943: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:06.946: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:06.985: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:06.988: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:07.025: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:07.027: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:07.065: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:07.067: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:07.105: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:07.108: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:07.141: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:07.143: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:07.181: LOG: Received message with service ID NegativeResponse
11/Jul/2011 02:11:07.183: LOG: Received negative response for service ID: StartDiagnosticSession, with response code: RequestCorrectlyReceived_ResponsePending
11/Jul/2011 02:11:07.219: LOG: Received message with service ID StartDiagnosticSessionPositiveResponse


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