Checking A/C System

Tests 1 - 4:

Tests 5 - 9:

Tests 10 - 13:

SYMPTOM
CHECKING THE A/C SYSTEM

POSSIBLE CAUSES
- A/C clutch did actuate
- A/C request circuit open
- A/C select circuit open
- High pressure cut-off switch
- Low pressure cycling switch
- A/C clutch coil
- A/C clutch relay
- A/C clutch relay output circuit open
- Fused B(+) circuit open
- Open ground circuit to A/C clutch connector
- Refrigerant system charged properly