Group 87 Climate Control, Fault Codes
Troubleshooting
MID 146 SID 11 Solenoid Clutch, Compressor
T8008641
T8009765
Component: A34 Climate Control Unit climate unit,
Y42 Clutch magnetic, air conditioning compressor
General information
The magnetic clutch mechanically engages and
disengages the compressor. The magnetic clutch is part
of the compressor.
Fault code
FMI 4
Abnormally low voltage or short-circuit to lower voltage
Conditions for fault code:
•
If the control unit detects a short-circuit to ground, the
control unit interprets this as an error and an fault code
is stored.
Possible cause:
•
Signal cable short-circuited to lower voltage
Reaction from the control unit:
•
Fault code is stored
•
Yellow lamp requested
Noticeable external symptoms:
•
Yellow lamp lights up
•
No cooling effect
•
Air conditioning (A/C) compressor disengaged
20