62C-17
MR-413-X44-62C000$455_eng.mif
V1
MANUAL AIR CONDITIONING
Fault finding - Function62C
Exchanges between the two air conditioning computers (manual air conditioning)
–air conditioning request
–switch on heated rear screen request (+ electric door mirrors)
–passenger compartment ventilation signal
MANUAL AIR
CONDITIONING
CONTROL PANELUCH
–Heated rear screen warning light lit
–Air conditioning warning light lit
–Air conditioning request 2
UCHINJECTION
COMPUTER
–Air conditioning authorisation
–Engine status signal
62C-63
MR-413-X44-62C000$910_eng.mif
V1
MANUAL AIR CONDITIONING
Fault finding - Fault finding charts62C
ALP 14 Noisy compressor
NOTESConsult this customer complaint after a full check with the diagnostic tool (fault
reading and configuration checks).
WARNING
Check that the computers active in the AIR CONDITIONING function (Injection and
UCH) are correctly configured.
Note:
Before starting any work, check that the noise is indeed coming from the compressor.
Check that the compressor belt is in good condition and check its tension (for engines without automatic
tensioning) (see MR 411, Mechanical, 11A, Top and front of engine, Accessories belt: Removal - Refitting).
Check that the compressor is correctly fixed (see MR 411 Heating and air conditioning system, 62A, Air
conditioning, Compressor: Removal - Refitting).
Check the refrigerant fluid and look for any leaks. Significant loss of fluid causes the compressor to make noises.
(see Technical Note 6001A, Air conditioning, 62A, Air conditioning, Air conditioning: Check).
If the fault is still present, replace the air conditioning compressor (see MR 411, Mechanical, 62A, Air
conditioning, Compressor: Removal - Refitting).
AFTER REPAIRCarry out a complete check with the diagnostic tool.
