Test Description
WARNING: This page is about a different variant/trim than selected.
The numbers below refer to the step numbers in the diagnostic procedures.
- 2
Inspect the heater current with the engine at operating temperature, and allow time for the heater current to stabilize. The HO2S 1 heater current is initially higher until the sensor reaches full operating temperature. - 4
A DTC fail in this step verifies the problem is present with the HO2S 1 disconnected.