Signal implausible
1 Check resistance of oxygen sensor heating.
1. Remove connector of oxygen sensor 1 ahead of TWC.
2. Connect ohmmeter to pin 1 and pin 2 of the oxygen sensor connector towards the oxygen sensor.
Display: less then 2.6 ohms at 25 锟斤拷C
2 Perform adaptation.
1. Switch on the ignition.
2. Wait one minute.
Do not press the accelerator.
3. Switch off the ignition for at least 10 seconds.
4. Read out the fault memory.
3 Measure resistance between oxygen sensor housing and oxygen sensor heating.
1. Remove connector of oxygen sensor 1 ahead of TWC.
2. Connect ohmmeter to pin 1 of oxygen sensor housing and oxygen sensor connector towards the oxygen sensor.
Display: infinity ohms
3. Connect ohmmeter to pin 2 of oxygen sensor housing and oxygen sensor connector towards the oxygen sensor.
Display: infinity ohms
Oxygen Sensor Heating Ahead of TWC, Bank 1 - Open Circuit
P1115
Oxygen Sensor Heating Ahead of TWC, Bank 1 - Open Circuit