Error code question

I have a 99 TJ with the engine light on. I tried the on/off with the key, but get no error codes showing up. Any hints?

I believe it is the O2 sensor as I ran it with the exhaust hanging off before the primary (upstream) O2 sensor.

Anyway --- how else can I get the codes without buying the diagnostic tool or heading to a mechanic with one?

BillM

Reply to
Morrissey
Loading thread data ...

Sorry but without a diagnostic scan tool, you can't get the codes off your '99 TJ. There are a few years where they made the codes inaccessable and '99 is one of them.

Jerry

Reply to
Jerry Bransford

Reply to
L.W.(ßill)

Reply to
mic canic

Tried the possible methods each suggested (THANKS) but no luck. It did do the gauge test but nothing about error codes.

Will try getting a diagnostic tools.

Sigh ...

Thanks all!

BillM

99 TJ Sport Newfoundland
Reply to
Morrissey

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.