Climate control module

Tiny
KJSCULLY23@YAHOO.COM
  • MEMBER
  • 2007 VOLVO XC70
  • 2.5L
  • 5 CYL
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
DTC: LIN Bus 2: Signal too high/signal too low.
Passenger side seat heat and AC not working.
Will this require replacing the CCM?
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Saturday, March 7th, 2020 AT 1:11 PM

2 Replies

Tiny
KASEKENNY1
  • EXPERT
Couple things. Can you first supply the actual code for this one? I will send the testing if you don't have it. It could require the module but in most cases this is a circuit issue. Either wiring or a component is shorted. Again, the module is one of the possible causes with this but we don't want to guess at that if it is just a wiring issue.

Let me know the code and we can go from there. Thanks
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Saturday, March 7th, 2020 AT 3:19 PM
Tiny
JIS001
  • EXPERT
It appears as if you have multiple faults and replacing the climate control module may not solve the issue. As KASEKENNY1 pointed out, if you have the fault codes for the LIN bus code that would help a lot. As for the A/C not blowing cold is the compressor coming on? If the clutch is not engaging then the clutch is most likely worn or your low on refrigerant. Once you post all the trouble codes we should be able to guide you from there.
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Saturday, March 14th, 2020 AT 1:54 AM

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