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Post by fatcity on Mar 1, 2019 9:14:31 GMT -6
My 99 Aurora has the security system than occasionally displays ' Clean Key, Wait 3 minutes '.
During the 3 minutes, the security light glows, when time is up, light goes out, engine starts.
Can this ' feature ' be disabled ?
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tigger
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Post by tigger on Mar 1, 2019 10:07:49 GMT -6
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Post by fatcity on Mar 7, 2019 22:19:15 GMT -6
Tried to measure resistance [ same H F Meter shown . Only getting .003 - . 005 this is an average of all 3 keys . I measured resistance the long way, inverted key, got same reading .. could the resistance be that low ? I tried on two different HF VOMS and all 3 keys, readings are consistent . Meter set at 200 K Ohms . Told to cycle door keys, no good, seemed pointless, as door key has no resistor . [ Prob. he was thinking of a newer system , when told to cycle doors ] . Should one lead be grounded, and other placed on resistors end . I tried measuring end to end to get .005 not .0 ohms
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tigger
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Post by tigger on Mar 7, 2019 23:18:22 GMT -6
Read through the resistor side to side (one lead touching the resistor on one side of the key, the other lead touching the resistor on the other side of the key). Don't let the leads touch the key blade.
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Post by fatcity on Mar 8, 2019 19:28:15 GMT -6
Tried that Got readings of .602 and .597 20 K scale Does that mean 602,000 Ohms [602 K Ohms ] 6.02 Ohms or 602 Ohms ?
Will monkey tomorrow [ warmer ] Saw a YOUTUBE that suggested Key ON 10 minutes OFF 5 Seconds Back ON 10 minutes cycle repeats 3 times, than all is good .
Somehow, I think that's a fix for newer cars ?
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tigger
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Post by tigger on Mar 8, 2019 22:18:41 GMT -6
1 Kohms = 1000 ohms, so .602 Kohms = 602 ohms.
That procedure is the security relearn for the 2G, no idea if it applies to the Classic as well...
The "Clean Key" message is usually the result of a worn lock cylinder.
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Post by fatcity on Mar 13, 2019 12:16:37 GMT -6
Came up with a fix ... Reprogrammed B C M 10 minutes on, 5 seconds off This worked a couple times .
Than I got smart ... Used a different key to re-program BCM Problem solved ! [ I hope ]
I figure ... the old key was worn, probably on the low side of the tolerance , the less used key is probably right on the money .
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tigger
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Post by tigger on Mar 13, 2019 23:25:32 GMT -6
Good to hear!
Didn't realize the resistor part of those keys would (could) wear out...
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RCA1186
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Rob
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Post by RCA1186 on Mar 15, 2019 9:41:10 GMT -6
Yeah when I hear about this I always figured it was the lock cylinder contacts that wore down, not the key. In any case that bypass will work, should you run into the same problem down the lie with the second key.
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