F994 BSI compressor clutch control fault

[Jors]

Hi guys, I have a 307 2.0 HDI 2007 A/C is fully gassed and working when i hard wire and engage the clutch with a bypass (just to test) However the clutch does not engage at all. had it on the diagnostic tool.... comes out with: BSI fault 1.1 F000 Engine wire housing ECU lost communications with the CAN 1.2 F994 F994 Engine fuse box: fault in the A/C compressor clutch control circuit and Engine relay Unit-BSM fault: 2.1 F000 Engine fuse box lost communications with the CAN 2.2 F994 A/C compressor clutch control fault Checked all the fuses in the engine fuse box, replaced the fuse box with another one that I assume is in working condition, checked the big fuses Under the main engine fuse box....Can I now assume it is the BSI?... Do not understand the F000 fault and start thinking the ac situation points to the a/c relay in the BSI? How to replace the relay?? Thanks , Jors

 

[dimistyle]

Nope dont assume. I would think this is pointing to the relay within the BSM. Either try another BSM (fuse box in engine bay) utube the guy who replaces a relay within the BSM. Supposedly in Europe you can buy the replacement relay but not in the southern hemisphere!!

Hope this helps

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[Jors]

Got the Bsi out, but dare not brake it open to find the relay... is the relay in the BSI??? it says so int the Haynes manual BUT I noticed the diagrams being for 2001 to 2003 models...hav e to be sure before i do drastic things

 

[dimistyle]

Dont open just check all pins are clean not burnt or corroded.

Some old BSI have relays but 2005 onward would have the relays in BSM engine fuse box.
Still a nightmare to open so again just check all pins and sockets on wiring loom.

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