Question about 1998 Jeep Wrangler
To query and OBD-I-era computer for these codes, put the key in the
ignition and turn the key to run (not start), then off, then run, then
off, then run (that's 3 runs and 2 offs). Leave the key in the run
The check engine light will turn on for a few seconds, then turn off, then (sometimes after 20-30 seconds) start flashing. The flashes are counting out 2-digit trouble codes. Fast flashes count up each digit, with a longer pause between digits. On TJ's with a digital odometer, the code numbers are printed on the odometer in addition to flashing the check engine light. 55 indicates the end of all codes. Once you've got your code list, consult the table below to see what they mean.
OBD-II information is more complex, so the codes for 1998 and newer Jeeps can't be displayed by flashing the check engine light. However, those vehicles which have digital odometers will display the codes on the odometer. I've verified this personally on a 1999 WJ. For those vehicles without digital odometers, or for anybody who wants an English description rather than just a numeric code, an OBD-II code scanner ($100-300) can be plugged in under the dash. OBD-II codes can be looked up online here.
These codes were taken from the '95 XJ/YJ factory service manual.
I hope help you woth this. Good luck (rated this).
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
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