93' Jeep Cherokee - Check Engine Light + Codes... Help....

Reply

  #1  
Old 12-17-06, 04:04 PM
Member
Thread Starter
Join Date: Jul 2006
Posts: 14
93' Jeep Cherokee - Check Engine Light + Codes... Help....

93 Jeep Cherokee... My check engine light came on and stayed on yesterday... I got the Diagnostic Trouble Codes by turning the ignition switch ON, OFF, ON, OFF, ON and observing the CHECK ENGINE LIGHT... here are the codes....

12-???

41- Fault in the charging system or no field current.

55- Completion of fault code display.

Today I decided to start it up and see if the check engine light was still on... it was... I looked at my gauges and I noticed my voltage reading is a little lower than normal... it's usually closer to 14 volts, but now its closer to the red area, but not under the red... Could a this mean a bad alternator?? could a bad alternator make the check engine light come on? ive never had the check engine light come on to warn me about a bad alternator in any of my previous vehicles....
 
Sponsored Links
  #2  
Old 12-17-06, 05:12 PM
Member
Join Date: Dec 2001
Posts: 2,538
its possible would have it checked out before it strands you the voltage regulator is built into the computer so the computer is able to detect a problem with the field circuit wether it be alternater, wiring or computer problem.
if you have a voltmeter and testlight you could probably test it yourself by checking voltage at the battery and checking voltage at the 2 smaller field terminals on the back of the alternater.
 
  #3  
Old 12-18-06, 12:02 AM
Member
Thread Starter
Join Date: Jul 2006
Posts: 14
thanks for the fast reply... i dont have a voltmeter but autozone said they would test the alternator for me in the morning...
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes