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AC Compressor only engages when Low pressure switch is jumped Topic is solved

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LOB
Posts: 186
Joined: 20 May 2016, 04:21
Year and Model: 855 GLT 2.5T
Location: Sweden/ Norway
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Post by LOB »

I run a VOL-FCR scan today to reset the service indicator and realized that the faulty low pressure port had given me a fault code!
I didn't bother to have a look before because VOL-FCR tells me that I need to build a led light blinking device to read AC-codes. This fault is apparently part of the engine management on Motronic 4.4!?

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misha
Posts: 5437
Joined: 07 Dec 2008, 16:09
Year and Model: 2010 Volvo S80 D5
Location: Serbia
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Post by misha »

Service light is just an oil change reminder.
It have nothing to do with engine management or fault codes.

When there is a fault stored in ECC module...ac & rec lights are flashing for 15-20sec everytime the car is started.
2010 S80 D5 / restyling / fully equipped / Twin turbo / Savile Gray Metallic (492)

History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon

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