DTC P2A00
DTC P2A00 : A/F Sensor (Sensor 1) Circuit Range/Performance Problem
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P2A00 A/F Sensor (Sensor 1) Circuit Range/Performance Problem |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Start the engine.
-4. Hold the engine speed at 3, 000 rpm without load (CVT in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
-5. Test-drive under these conditions:
- Engine coolant temperature (ECT SENSOR 1) above 158 deg. F (70 deg. C)
- CVT in D, M/T in 3rd
- Vehicle speed between 25-55 mph (40-90 km/h) for 5 minutes
- Drive at a steady speed between 55-75 mph (90-120 km/h) for 10 seconds, then decelerate (with throttle fully closed) for 5 seconds or more
Signal Current conditions Values Unit ECT SENSOR 1 ENGINE SPEED -6. Monitor the OBD STATUS for DTC P2A00 in the DTCs MENU with the HDS.
DTC Description OBD Status P2A00 A/F Sensor (Sensor 1) Circuit Range/Performance Problem 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 freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot . If the HDS indicates EXECUTING, keep driving until a result comes on. If the HDS indicates OUT OF CONDITION, go to step 1-4 and recheck.