Examination
1. Disconnect the wiring connector and check the resistance of the sensor (in the figure on the left is a 4-cylinder engine, on the right is a 6-cylinder). The resistance must correspond to that specified in the technical data (see subsection 7.2.2.). On 4-cylinder engines, the sensor must be removed for verification.
Replacement
1. Switch off the ignition.
2. Disconnect the connector, unscrew the bolts and remove the sensor.