199003111 - P2231 Lambda sensor resistance

This error is detected if the electronic control unit detects a malfunction using the Lambda sensor internal evaluation logic.

		Test results
0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
	Visually inspect that the exhaust system is not leaking or constricted.Also check that the Lambda sensor does not show signs of wear/faults.	Move on to Step 1	There are leaks or constrictions in the exhaust circuit	Repair or if necessary replace the faulty components
			The Lambda sensor is faulty	Replace the Lambda sensor    Op. 1080B90 LAMBDA SENSOR - R.R.
1	CHECK FOR PRESENCE OF ERRORS	All OK	Problems encountered	Operation
	Connect the diagnostic equipment and select the following system: Diesel injection Bosch EDC16C39 CF4/EOBD CAN (EP 1.9).Check that none of the following errors is present:- P0135- P1131- P1140- P1607- P1611- P2231	End of diagnosis	Error P0135 is present	Continue as instructed in the    See Test 1080BI CHECK THE OPERATION OF THE LAMBDA SENSOR HEATER
			Error P1131 is present	Continue as instructed in the    See Test 1080BA UPSTREAM LAMBDA SENSOR OPERATION CHECK
			Error P1140 is present	Continue as instructed in the    See Test 1080BA UPSTREAM LAMBDA SENSOR OPERATION CHECK
			Error P1607 is present	Continue as instructed in the    See Test 1080BA UPSTREAM LAMBDA SENSOR OPERATION CHECK
			Error P1611 is present	Continue as instructed in the    See Test 1080BA UPSTREAM LAMBDA SENSOR OPERATION CHECK
			Error P2231 is present	Continue as instructed in the    See Test 1080BI CHECK THE OPERATION OF THE LAMBDA SENSOR HEATER