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Compressor not kicking on

Tiny
JOHN EAKINS
  • MEMBER
  • 2006 DODGE CHARGER
  • 3.5L
  • V6
  • RWD
  • AUTOMATIC
  • 300,000 MILES
The compressor works and there is refrigerant in the system, I have got power at the relay but no ground, I can start the compressor by jumping it, what wire is for the relay ground, and where does it go?
Does it pass through the PCM before going to the switches?
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Friday, May 12th, 2017 AT 11:15 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The relay is controlled by the front control module to when it goes on and off. Which may be part of the TPIM module under the fuse box. So it is either a control or TPIM module problem which a mechanic will have to scan for codes to find the problem. It can also be a can/bus problem which means one is not talking to the other or some other module like the HVAC so It will not work.
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Friday, May 12th, 2017 AT 12:38 PM

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