DTC P0133, P0153 (21 9-Speed A/T)
DTC P0133 : Rear Air Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Malfunction/Slow Response
DTC P0153 : Front Air Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Malfunction/Slow Response
NOTE:
- Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Fuel and Emissions Systems
- If DTC P0139 and/or P0159 * is stored at the same time as DTC P0133 and/or P0153 *, troubleshoot DTC P0139 and/or P0159 * first, then recheck for DTC P0133 and/or P0153 *.
- Information marked with an asterisk (*) applies to the front bank (Bank 2).
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P0133 Rear Air Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Malfunction/Slow Response | ||
| P0153 Front Air Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Malfunction/Slow Response |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS.
- 3. Turn the vehicle to the OFF (LOCK) mode.
- 4. Start the engine.
- 5. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
- 6. Test-drive under these conditions:
- Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
- Transmission in D
- Engine speed between 1, 500-2, 250 rpm
- Drive the vehicle at 25 mph (40 km/h) or less for 5 minutes, then drive at a steady speed of 36 mph (57 km/h) or more
Signal Current conditions Values Unit ECT SENSOR 1 ENGINE SPEED VEHICLE SPEED - 7. Monitor the OBD STATUS for DTC P0133 and/or P0153 * in the DTCs MENU with the HDS.
DTC Description OBD STATUS P0133 Rear A/F Sensor (Bank 1, Sensor 1) Malfunction/Slow Response P0153 Front A/F Sensor (Bank 2, Sensor 1) Malfunction/Slow Response Does the HDS indicate FAILED?
YES
Replace the A/F sensor (Sensor 1) .
NO
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot - Refer to: How to Troubleshoot the Fuel and Emissions Systems If the HDS indicates EXECUTING, keep driving until a result comes on. If the HDS indicates OUT OF CONDITION, go to step 1-4 on this step and recheck.