How To Clear Codes Without Scanner

[inmustang]

Is There A Way To Clear Codes On A 96 Buick Regal Without A Scanner. Try Taking Fuse Out And Disconecting The Postive Battery Lead, But No Luck?

[BNaylor]

Originally Posted by inmustang

Is There A Way To Clear Codes On A 96 Buick Regal Without A Scanner. Try Taking Fuse Out And Disconecting The Postive Battery Lead, But No Luck?

I'm not sure about the 96 Regal but on 97 Regal and up you can clear DTC error codes and clear the SES/CEL light by doing the following without a scanner/code reader:

Remove POSITIVE battery cable.
Turn ignition key to start position and hold there for at least 1 minute.
Of course, all dash lights will be off and it will not start.
Turn to off, however key will not go to off position and should be stuck due to no power.
Re-connect POSITIVE battery cable. Relays will chatter.
Turn key forward but not to start and then off.
Key should remove now.

Re-insert key and start engine and all DTC error codes should be clear to include SES/CEL light if it was on.

Its worth a try and works on just about all late model GM cars. It works for me and on all 3 "W" bodies I have. But I do have a good scanner/code reader just in case.