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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Computer Related Diagnostic Information

Ford provides Trouble Code/Symptom driven diagnostics for this component.

Diagnostic procedures can be found in:

Aspire - Pinpoint Test O2S.

All others - Pinpoint Test HO2S. HO2S - Heated Oxygen Sensor

For complete diagnostics, refer to Computers and Control Systems / Testing and Inspection. Testing and Inspection