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Chris, Shop Foreman
Category: Jeep
Satisfied Customers: 3137
Experience:  Jeep Certified Master Tech
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A new question is answered every 9 seconds!!! I was just trying to see what these diagnostic

Customer Question!!! I was just trying to see what these diagnostic codes meant for my 1998 wrangler. P1388 and P0545
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: P1388 and PO545. codes given to me when I went in for a smog. To me, its running fine, lol
JA: Are you fixing your Wrangler yourself? What have you tried so far?
Customer: tried nothing. just want to know what these codes are for.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 15 days ago.
Category: Jeep
Expert:  Jared D replied 15 days ago.


The P1388 isn't a good sign, normally it points to a bad PCM. Do you have any symptoms to go along with the light? Has it stalled out recently? Running funny?

Expert:  Jared D replied 15 days ago.

The P0545 isn't one I'm familiar with and it doesn't show up on any of the trouble code charts for this vehicle. You're certain that's the correct number?