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Checking Jeeps Computer

Old 06-24-2010, 11:59 PM
  #1  
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Year: 1991
Model: Cherokee
Engine: 4.0 Litre HIGH OUTPUT
Default Checking Jeeps Computer

Will these work on older veichles?
Actron CP9125 PocketScan Code Reader
Amazon.com: Actron CP9125 PocketScan Code Reader: Automotive Amazon.com: Actron CP9125 PocketScan Code Reader: Automotive
I have a 1991 Jeep Cherokee XJ Laredo and The mait Req light comes on and went to Advance and AutoZone and they don't have the car check for older veichles anymore.

Has Mait Req Light on and Check Anti Lock Light on.
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Old 06-25-2010, 08:54 AM
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Year: 1999 sport 4x4
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I have the higher end one from autone made by actron and use it on my 99...nice little pc of equipment, gets me out of a jam...the quality is very good.
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Old 06-26-2010, 02:03 AM
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Default Trouble Codes

The older jeeps flash the code and can be decoded visually and looked up online

http://www.jeephorizons.com/tech/yj_codes.html

Hope it helps!
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Old 06-26-2010, 08:06 AM
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http://www.go.jeep-xj.info/HowtoECUcodes.htm

The Maintenance Required Light is set by vehicle milage and is there to force you into the dealership to replace your O2 Sensor....nothing more. Pull the bulb.
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