2005 Throwing up code P0604 (Control Module RAM fault) - Pontiac GTO Forum
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post #1 of 7 (permalink) Old 07-30-2012, 05:33 PM Thread Starter
 
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2005 Throwing up code P0604 (Control Module RAM fault)

Check engine light came on today. Ran the code and it came up with P0604.

"Definition- Control Module Random Access Memory (RAM) fault

Explanation -ECM detected the internal data test failed (RAM)

Probably Cause- Failed ECM"

Anyone have any idea what that could be? My car only has 27k miles on it. Id appreciate any advice in case its something I dont need to pay the shop to do.
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post #2 of 7 (permalink) Old 07-30-2012, 05:58 PM
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If it's a failed ECM then you're going to need the dealer. You're going to need a new ECM and a Tech II to connect it up to the other modules. You could try disconnecting the battery for 15 minutes and rehook it up. Maybe it is a one time glitch.

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post #3 of 7 (permalink) Old 07-30-2012, 07:41 PM Thread Starter
 
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Tried it. No luck.
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post #4 of 7 (permalink) Old 07-30-2012, 08:35 PM
 
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Your Engine Controller is shot.

Get a new one and have it reprogrammed by the dealer.
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post #5 of 7 (permalink) Old 07-31-2012, 07:29 AM Thread Starter
 
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Any difference between A1 cardone and AC Delco ECM's?

Pontiac GTO Engine Control Module - Free Shipping - A1 Cardone, AC Delco
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post #6 of 7 (permalink) Old 07-31-2012, 09:16 AM
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It sounds like the Cardon unit is a reman but I wouldn't be afraid of that at all. Electronics that have been cycled can be better than new untested ones. It has a warranty and if it lives through that it will probably outlive the car.

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post #7 of 7 (permalink) Old 08-04-2012, 10:23 PM
 
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ecm question

Can the ECM cause a hard shift? I guess my question really is can the ECM mess how the transmission shifts and the traction control?

Last edited by z28gto; 08-04-2012 at 10:25 PM. Reason: missed types
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