Heated Oxygen Sensor Monitor
This monitor applies to DTCs P0130, P0133, P0136, P0139, P0150, P0153, P0156, and P0159. Following conditions must be met during the test:
- Engine coolant temperature must be 176°F (80°C) or more.
- Atmospheric temperature is 14°F (-10°C) or more.
- Selector lever is in "D" range.
Monitor takes about 5 minutes to complete. To run monitor, use illustration. See Fig 1 . Perform steps as follows:
- Remove all test equipment from vehicle and install all components and connectors that were removed or disconnected during testing.
- After engine is completely warmed up, turn ignition off.
- Start engine and quickly accelerate to 35-40 MPH.
- While keeping accelerator pedal position constant, keep speed at 35-40 MPH (4th gear on M/T) for 120 seconds or more (this is when monitor runs).
- Return vehicle to shop and turn ignition off.