Checking A/C System Operation With No DTC's

Tests 678 - 683:

Tests 684 - 685:

SYMPTOM
CHECKING A/C SYSTEM OPERATION WITH NO DTC'S

POSSIBLE CAUSES
- Refrigeration system not properly charged
- A/C clutch relay output circuit open
- A/C compressor clutch ground circuit open
- Fused B(+) circuit open
- A/C clutch coil defective
- A/C clutch relay defective