Electric Compressor Speed Mismatch
â–¶ How to fix
Check functionality of electric compressor, invertter, and can signals between chassi and body
What you'll see
Cooling and/or heating in passenger area is not working when expected to.
System reaction
Electric compressor is not allowed to run. If error occured while heating with heat pump, using of auxiliary heater is allowed. If error occured while cooling, only ventilation will be used.
Diagnostic depth
Detection
HPAC ECU reports compressor feedback error signal as active.
Possible cause
Auxiliary inverter can not run compressor with requested spped, or compressor is broken.