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vs322



Member Since: 08 Apr 2020
Location: Athens
Posts: 527

Greece 2004 Range Rover HSE 4.4 V8 Java Black
'09MY Supercharged A/C problem

A friend's Supercharged has lost air-conditioning overnight. There is no cool air coming out at all, though it was working perfectly well yesterday.
We took it to the garage where he gets it looked after and they were unable to pinpoint the issue. He ended up leaving on vacation without air-conditioning. A brave man Bow down
My IID tool showed:

HVAC-Heat / Cool

0x7 Left solar sensor fault

0x8 Right solar sensor Fault

0x1D compressor clutch driver fault

The solar sensors I've been seeing them in the past, so probably unrelated...

I tried to clear but the clutch error keeps coming back

The garage diagnostic tool also picked up a "Left heater temperature sensor fault" if that makes any more sense.

We've checked all fuses (#12 and #56 iirc) in the glove box and swapped the three bigger relays in the ECU box under the bonnet We did not find anything related in the boot fuse board.

Tried the clutch wire for current, there is MOMENTARY supply when the AC switch is pressed.

Tested for freon and there have been no leaks, plenty inside....

The compressor does seem to kick in momentarily as it is felt by engine vibration and RPM but doubt it stays engaged...

Any ideas would be appreciated

Thanks

Post #670334 2nd Aug 2023 7:21pm
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