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Old 01-16-2009, 10:15 PM   #1
PotentialTahoe
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Default How to reset the ECM


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I was wondering how do I go about resetting the ECM, will the reset also clear all the trouble codes temporarily. I am installing the speed sensor and want to reset the ecm prior installing and testing the new sensor. Thanks for the help.
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Old 01-16-2009, 11:37 PM   #2
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get it hooked up to a code reader or scanner and erase all your codes.
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Old 01-18-2009, 05:14 PM   #3
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disconnect the batt ground..
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Old 01-18-2009, 11:38 PM   #4
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theyll still be held in the computer's memory for codes but thatll work too.
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Old 01-19-2009, 09:52 PM   #5
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While the engine is running, open the fuse panel under the hood, pull out either ECM A or ECM B fuse. Engine will die. swap the placement of the fuses. restart engine. This should reset your ECM if you dont have a scanner or code reader to reset it.
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