Hi All,
I've a problem with my air con that appears to have garage stumped at present.
Its the auto climate system.
Basically the compressor clutch is not engaging.
I've had an air conditioning mobile mechanic check gas, most obvious thing.
Pressure is OK.
He thought it might be pressure switch but when he connect his machine to OBD port he could not read settings and did not just want to change it.
Recommended car electrician who had more advanced software. He connected up and showed switch OK and all other parameters OK, but it appeared the system was not letting A/C clutch engage.
Called up wiring diagram and tested through from under bonnet module to compressor and all wiring tested OK apart from cable that returns to control unit and earth.
Tried earthing at compressor but still not working. So looks like the earth is used as return for possible monitoring.
Thinks there must be a break in main harness around engine, which is hard to believe.
Anyone else had or come across this?? Been searching but nothing come up.
Been trying to find wiring diagram as well for A/C to look at myself but no luck.
Any advice/ Want to have the car back for at least 4 hours and does not know what it will cost!
Len
I've a problem with my air con that appears to have garage stumped at present.
Its the auto climate system.
Basically the compressor clutch is not engaging.
I've had an air conditioning mobile mechanic check gas, most obvious thing.
Pressure is OK.
He thought it might be pressure switch but when he connect his machine to OBD port he could not read settings and did not just want to change it.
Recommended car electrician who had more advanced software. He connected up and showed switch OK and all other parameters OK, but it appeared the system was not letting A/C clutch engage.
Called up wiring diagram and tested through from under bonnet module to compressor and all wiring tested OK apart from cable that returns to control unit and earth.
Tried earthing at compressor but still not working. So looks like the earth is used as return for possible monitoring.
Thinks there must be a break in main harness around engine, which is hard to believe.
Anyone else had or come across this?? Been searching but nothing come up.
Been trying to find wiring diagram as well for A/C to look at myself but no luck.
Any advice/ Want to have the car back for at least 4 hours and does not know what it will cost!
Len
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