Ps with the wire jumpers between 5 and 7 at the Klima compressor runs. Sent from my iPhone
On Jul 13, 2013, at 10:55 PM, Peter Frederick <psf...@earthlink.net> wrote: > You might try grounding the low pressure switch wire that goes to the KLIMA > with the engine running. This should engage the compressor if the KLIMA is > good as the only signal to the KLIMA from the PBCU is a ground. If it does > not come on, there is something wrong with the KLIMA or circuit to the > clutch. You can also test the clutch itself -- if the coil is OPEN, it > won't engage no matter what. > > Obviously you must have power to the PBCU to get it to operate, but since all > it does to operate the compressor is ground the signal wire to the KLIMA, the > PBCU unit being dead is like likely that some other failure. Do check the > fuse -- you usually get no fan and full heat if it's bad since the monovalve > will be open all the time. > > Peter > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
