2000 Pontiac Bonneville Q&A

2000 Pontiac Bonneville Question: manual check engine light

How to manually check the codes for check engine light -
Answer 1
you need a code reader. no other way. even a reader will not tell you the failure, just the system failure. let a shop do a real diag for you. Roy -
Comment 1
Thanks, some can access trough cars chip on dash... -
Comment 2
chrysler can be done by cycling the ket 3 times but does not translate the code into terms we know without a manual. they are the only ones. Roy -