C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Quick question about removing SES codes

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Old Aug 19, 2005 | 08:33 AM
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From: What do I know anyway? I'm just a 50 year old No0b
Default Quick question about removing SES codes

I set the timing on my '89 last night and disconected the wire (can't remember what it's called right now) to by pass the computer's built in timing. Of course this triggers the SES light. My question is, is disconnecting the battery for 10 seconds the only way to re-set/remove codes from the information display? Doing this worked but of course I lost all mileage memory as well as radio presets. Thanks
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Old Aug 19, 2005 | 10:20 AM
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Yep, as far as I know the only way to clear them is by disconnecting the battery.
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Old Aug 19, 2005 | 11:41 AM
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Thanks Rick
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Old Aug 19, 2005 | 01:01 PM
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Originally Posted by Dynabob
I set the timing on my '89 last night and disconected the wire (can't remember what it's called right now) to by pass the computer's built in timing. Of course this triggers the SES light. My question is, is disconnecting the battery for 10 seconds the only way to re-set/remove codes from the information display? Doing this worked but of course I lost all mileage memory as well as radio presets. Thanks
On my 86 there's another connector coming off the positive battery cable that can be disonnected to clear the SES codes but will not cause the loss of radio pre-sets, etc.

I believe the computer fuse can be pulled to accomplish the same thing, but I've never gone that route.

Jake
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Old Aug 19, 2005 | 01:03 PM
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removing the fuse will do the same thing.
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