DTC P2A00 (1.5 L Engine)

DTC P2A00  : A/F Sensor (Sensor 1) Circuit Range/Performance Problem

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Start the engine. 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.

   Test-drive the vehicle under these conditions:

   • Engine coolant temperature (ECT Sensor 1) above 158 deg.F (70 deg.C)
   • CVT in D, M/T in 4th or 5th
   • 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 4 seconds or more

   Signal	Current conditions
   	Values	Unit
   ECT Sensor 1
   Vehicle Speed

   -5. 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 

   The failure is duplicated. 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 . If the HDS indicates EXECUTING, keep driving until a result comes on. If the HDS indicates OUT OF CONDITION, go to step 1-3 and recheck.