199003162 - P0645 Conditioner relay control

The error is validated by comparing the request for the climate control with the status of the control, which should be ON (with detail short circuit to +Vbatt.) or OFF (with detail short circuit to earth or open circuit)

		Test results
1	CLIMATE CONTROL RELAY CHECK	All OK	Problems encountered	Operation
	Check that the climate control relay is working properly	Move on to Step 2	Relay faulty	Replace the relay
2	CLIMATE CONTROL CONNECTIONS CHECK	All OK	Problems encountered	Operation
	Check the connections between the engine management control unit and the climate control relay    See E6021 COMPRESSOR ENGAGEMENT	End of diagnosis	Connections not correct.	Restore the correct connections.