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one more thing; Have you checked your A/C Clutch fuse for signs of heat damage, Blown etc.
No I haven't. Not this Wed. nite, but the next Wed. nite I will see the fellow that help write the service manual.Hopefully he will be in a mood to look it over?He can take a C4 apart & put it together blindfolded...
Thanks
Did you interrogate both the HVAC programmer, as well as the PCM?
Codes 66-69 and possibly code 70.. will disable the A/C as well! If you in fact have "No" codes present then the refrigerant level is probably OK and there is a wiring issue. Or as you stated a problem with the Relay.
