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04 saturn ion ECM I tried to program it and at the end of…

04 saturn ion ECM I...
04 saturn ion ECM I tried to program it and at the end of the process I'm getting an error from GM E4491& E4423 I am using Cardaq M and Windows 7 I believe is locked. I tried to read VIN with multiple devices with no luck. How do i go about unlocking it or correcting this issue?
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Answered in 22 minutes by:
3/28/2018
Eric
Eric, Automotive Repair Shop Manager
Category: Saturn
Satisfied Customers: 34,945
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified

HI,

There is a service bulletin out for this from GM

Document ID:(###) ###-####/p>

#PI0592D: Service Programming System (SPS) Errors (E4398, E4399, E4403,

M4404 M4413, E4414, E4423 or E4491) - (May 20, 2016)

Subject: Service Programming System (SPS) Errors (E4398, E4399, E4403, M4404 M4413, E4414, E4423 or

E4491)

Models: 2016 and Prior GM Passenger Cars and Light Duty Trucks

Attention: This PI also applies to any of the above models that may be Export from North America vehicles.

International dealers should contact their local TAC for support.

E4491/E4423 – Programming Failed

Cause:

These errors can be the result of an incompatibility between the software/calibrations and the module.

Also, these errors can be a result of a condition that is not being met to allow a successful programming event (e.g. incorrect voltage and/or aftermarket components).

Resolution:

This type of issue cannot typically be resolved without assistance from TCSC. Be sure to have the original and service module part numbers and error detail when contacting TCSC.

This can be confirmed by attempting to program the original module. Typically these errors cannot be resolved without the assistance of TCSC. Do not replace the module. Contact TCSC and be sure to have the original module part number and

the service part number when calling.

TCSC: 1-***-***-**** English or 1-***-***-**** French, 8am-8pm (EST) Monday through Saturday

So, make sure you have good voltage and no aftermarket tuners or chips installed. If good, then call tech support for help on calibration and or software issue

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Customer reply replied 3 months ago
Yea i found that when i googled it. If i give you 2 VIN's can you tell me if they are compatible ECM?

HI,

Yes.

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Customer reply replied 3 months ago
1G8AZ52F24Z177525 = donor
1G8AL52FX4Z205234 = customer's car

HI,

They use the exact same ECM, so not a compatibility issue.

The problem may be that the donor ECM wont reprogram the vin number, which happens when trying to reprogram a used GM ECM about 1/2 the time on early to mid 2000s GM ECMs. You may end up having to either send the customer's ECM out for a rebuild or sell them a remanufactured one.

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Customer reply replied 3 months ago
Would you know what equipment and or software / process is for them to re write the vin onto a used ecm?

HI,

Tech2 scan tool and access to the GM tech site for the software download. I used to have a subscription but I did so few a year that it didnt make financial sense to pay over $2K a year for it. I sub them out to a nearby GM dealer.

Eric
Eric, Automotive Repair Shop Manager
Category: Saturn
Satisfied Customers: 34,945
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified
Eric and 87 other Saturn Specialists are ready to help you
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Customer reply replied 3 months ago
Well thanks for all your help
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