199003083 - P0403 EGR valve

This error is indicated in the event of a short circuit to earth (with detail of s.c. to earth), a break (with detail of open circuit) or a short circuit to positive (with detail of s.c. to +Vbatt) in the connection circuit to control unit Pin 60 or if the detected electronic control module temperature is not within the specified limits for at least 0.24 s (with detail of excessive temperature). As a result (except in the final case), the maximum power is reduced, the exhaust gas circulation valve is switched off and the turbocharging pressure can no longer be controlled.

		Test results
0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
	Check that the error details is not S.C. to earth	Move on to Step 3	The error detail is S.C. to earth	Move on to Step 1
1	ELECTRICAL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Ensure fuse F59 (second from the left on the second row from the bottom) in the engine compartment junction unit has not blown.	Move on to Step 2	Fuse F59 has blown	Continue carrying out the    See Test 1064BE CHECK TURBO VALVE PROTECTION FUSE
2	AIR CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check the seal of the inlet/supercharging system hoses.Check the hoses and connected pipes to identify any obstructions, damage etc.Check that the pipe restriction bands in the air intake/inlet system are correctly fitted.	Move on to Step 3	Connections faulty, obstructions or porousness	Renew or, if necessary, replace the faulty components
3	EGR VALVE OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the EGR valve is working properly by carrying out the    See Test 1080CB EGR SOLENOID OPERATION CHECK	End of diagnosis