PREPARATION
Special Service Tools
The actual shapes of the tools may differ from those illustrated here.

Commercial Service Tools

Precaution
Basic inspectionOil
Description
MAINTENANCE OF OIL LEVEL
The compressor oil is circulating in the system together with the
refrigerant. It is necessary to fill compressor with oil when replacing A/C
system parts or when a large amount of refrigerant leakage is detected. It is
important to always maintain oil le ...
Key slot illumination
Description
Blinks when Intelligent Key insertion is required.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check key slot illumination KEY SLOT ILLUMI in Active Test mode.
Diagnosis Procedure
1. CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL
Check voltage between key slot connector ...
U1216 AV control unit
Description
Part name
Description
AV CONTROL UNIT
It is the master unit of the MULTI AV system and it is connected
to each control unit by means of communication. It operates each
system according to communication signals from the AV contro ...