P0040 Skoda 1/1 And 2/1 O2 Sensor Harness Connectors Reversed
Possible causes
– 1/1 And 2/1 O2 sensors harness is open or shorted
– 1/1 And 2/1 O2 sensors circuit connectors (wrong connection)
– Faulty Powertrain Control Module (PCM)
– 1/1 And 2/1 O2 sensors circuit connectors (wrong connection)
– Faulty Powertrain Control Module (PCM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0040 Skoda Description
At ignition on the Powertrain Control Module (PCM) checks the voltage on the ground side of the O2 sensor harness connector. If voltage is higher than two volts the P0040 Skoda code will set.
Skoda Vehicle:Skoda Yeti,Skoda Roomster,Skoda Superb,Skoda Rapid,Skoda Fabia,Skoda Mission,Skoda Joyster