3026045 - 1080BA CHECK ON UPSTREAM LAMBDA SENSOR OPERATION'

Disconnect the battery negative terminalDisconnect the electrical connection for the upstream Lambda sensor

	Name	Connector
-	Lambda sensor downstream of post-catalyzer	K17

Check that the heater's resistance corresponds to the specified value

	Measurement		Value
-	Heater resistor (ohm)	Pin 3 - 4 at 20˚C	4.0 ± 0.5