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



SYSTEM CHECKS

For diagnosis of the A/C Compressor refer to Air Conditioning Compressor / Testing and Inspection Compressor HVAC

For diagnosis of Air Delivery problems refer to Air Door Actuator / Testing and Inspection / Procedures. Testing and Inspection


For diagnosis of the Blower Motor refer to Blower Motor / Testing and Inspection. Blower Motor

For diagnosis of ECM controlled components of the Air Conditioning System refer to Powertrain Management / Computers and Control Systems / Testing and Inspection / Procedures. Powertrain Management