DTC P0134

DTC: P0134 Oxygen sensor 1 (G3/2) circuit no activity detected

Activation requirement CHECK ENGINE lamp:
Two consecutive trips with fault.

Activation of CHECK ENGINE lamp:
At start of next trip.

Test to detect fault:
With simultaneous recognition of "exhaust gas hot" and "oxygen sensor heated", the sensor signal must not remain in one voltage window (below approximately 425 mV or above approximately 475 mV) for longer than approximately 5 seconds.