Check Engine Light -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Check Engine Light

FS: Wranger BRIGHT License Plate LED! Just $3! Great valueIntroducing MONSTALINER™ UV Permanent DIY Roll On Bed LineFS: Jeep Fog Light LED Bulbs! Several Brightness Options!

Unread 09-13-2003, 10:33 AM   #1
Registered User
1985 CJ7 
Join Date: Aug 2003
Posts: 7
Check Engine Light

Hey Guys,
I saw a same kind of problem a while back. Somebody replied with a way to find out what the light is on for....a series of turning the ignition on and off....Does anyone know how to figure this out? Fisher

Fisher is offline   Reply With Quote Quick reply to this message
Unread 09-15-2003, 10:43 AM   #2
Registered User
Join Date: Dec 2002
Location: Kenmore, WA
Posts: 290
Start with key in ignition, all doors closed, and all power accessories turned off. Turn key to "On" (not "Start") position; this should be two clicks forward. Then turn key to "Off". Repeat one more time. Finally turn key back to "On" and leave it there. Wait about 20 seconds. The "Check Engine" light will begin to flash the code sequence. The sequence will begin and end with a 5. For example if you have codes 42 and 36 stored in the computer, then the sequence would look like this:

5, long pause, 4, short pause, 2, long pause, 3 short pause, 6, long pause, 5

Write down the codes and cross reference then with the ones listed in the Chilton manual, or the factory service manual.
1993 ZJ Limited 5.2 - no mods - Red with Gold (what were they thinking) trim.
automan25 is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.