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

code reading

Old Nov 23, 2008 | 11:35 AM
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Default code reading

How do you read the codes on a 1987?
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Old Nov 23, 2008 | 02:53 PM
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Do a search on "codes"
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Old Nov 23, 2008 | 04:41 PM
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Locate the ALDL under the DS dash to the right of the steering wheel.
Remove the cover (if still there), use a bent paper clip legs to jumper Pins A&B (two upper right).
Turn On the ignition key (do NOT start the engine).
Count the SES flashes: you will see three "12"s followed by each code flashed three times, ending with three "12"s.
Turn Off the ignition key.
Remove the paper clip.
Install the ALDL cover.
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Old Nov 24, 2008 | 08:07 AM
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http://members.shaw.ca/corvette86/No...it%20Check.pdf
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