Fault codes 15 and 23
I've checked my fault codes today with a little trick I learned from this forum.
15 & 23 are the fault codes.
15- Oxygen sensor or circuit
23- Rear o2 sensor inactivation error
Inactivation errors 15 (left) & 23 (right) indicate the sensor never "woke up" from cold.
Cold sensors produce little or no output voltage.
And with that it means that I should check and in worst case change my oxygen sensor I guess?
The only thing I was wondering is why its rear sensor(right) and left, is it 2 oxygen sensor for probe?