Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Operation Check

AIR CONDITIONING COMPRESSOR DIAGNOSIS
- Refer to diagnostic charts under Air Conditioning Compressor / Testing and Inspection. Compressor HVAC

AIR DELIVERY DIAGNOSIS
- Refer to diagnostic charts under Air Door Actuator / Testing and Inspection.

BLOWER MOTOR DIAGNOSIS
- Refer to diagnostic charts under Blower Motor / Testing and Inspection. Blower Motor

COMPUTER CONTROLLED A/C DIAGNOSIS
- Refer to diagnostic charts under Computer and Control Systems / Testing and Inspection. Testing and Inspection

INSUFFICIENT COOLING DIAGNOSIS
- Refer to diagnostic charts under Insufficient Cooling. Symptom Related Diagnostic Procedures