Main Power Supply and Ground Circuit Check

Power Supply Circuit Check for Manual A/C System
Check power supply circuit for manual air conditioning system.
Refer to "POWER SUPPLY ROUTING".

Steps 1 - 2:

A/C System Circuit

SYMPTOM: A/C System does not come on.

CONTROL SYSTEM-A/C CONTROL UNIT
The A/C control unit has a built-in microcomputer which processes information needed for air conditioner operation. The mode door motor, intake door motor, front blower motor and compressor are then controlled.