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Old 09-30-2011, 07:05 PM
My Jeep: 2006 5.7L WK
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Codes -

I hooked up a trailer the other day to my 06 Overland and couldnít get the left side lights to work. After checking for power to the wiring and not getting anything there I decided to check for codes with a scan tool. I got these codes;
B166B Left trailer tow lamp control circuit low
B166C Left trailer tow lamp control circuit high
I also got this one.
C1417 Front differential circuit low
Anybody know what could be causing the trailer lights not to work?
No warnings in the EVIC so I donít know why it has the front diff code.

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Old 11-16-2012, 07:59 AM
My Jeep: 2011 3.6L WK2
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Re: Codes

Looking into this further, I see B166B and B166C are both and either the Integrated Power Module (TIPM) or the Front Control Module (FCM). Just from what I see, it could be either/ or becuase both codes poped up.

Lastly C1417 could be the front differential solenoid, or the wiring.
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