## DTC Troubleshooting: P1249 (40)

DTC P1249: | ETCS Learn Deviation

NOTE: If the DTCs listed below are stored at the same time as DTC P1249, troubleshoot those DTCs first, then recheck for P1249.
P0221, P0222, P0223: Throttle position (TP) sensor B
P0607: ECM internal control module malfunction
P0638: Throttle actuator control range/performance problem
P1683: Throttle valve neutral position malfunction

1. | Turn the ignition switch ON (II).

2. | Do the DTC CLEAR in the CLEAR MENU with the HDS.

3. | Do the ETCS TEST in the INSPECTION MENU with the HDS.

4. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Is DTC P1249 indicated? YES - Go to 5. NO - Intermittent failure, system is OK at this time.Check for poor connections or loose terminals at the throttle body and at the ECM.n

5. | Check for the freeze data with the HDS. Is there battery voltage 10 V or less? YES - Check for the battery, then go to 12. NO - Go to 6.

6. | Check for the freeze data with the HDS. Is there vehicle speed 0 km/h? YES - Go to 7. NO - Stop the vehicle, then go to 12.

7. | Check for the freeze data with the HDS. Is there ENGINE SPD 250 rpm (min-1) or less? YES - Go to 8. NO - Stop the engine, then go to 12.

8. | Check for the freeze data with the HDS. Is there ECT SENSOR 100.5°C (213°F) or less? YES - Go to 9. NO - Cool down the engine, then go to 12.

9. | Check for the freeze data with the HDS. Is there ECT SENSOR 2.25°C (36°F) or higher? YES - Go to 10. NO - Warm up the engine, then go to 12.

10. | Check for the freeze data with the HDS. Is there IAT SENSOR 2.25°C (36°F) or higher? YES - Go to 11. NO - Warm up the engine, then go to 12.

11. | Check for the freeze data with the HDS. Is there APP SENSOR A/B 14.90 % or less? YES - Go to 16. NO - Release the accelerator pedal, then go to 12.

12. | Turn the ignition switch ON (II).

13. | Do the ECM RESET in the CLEAR MENU with the HDS.

14. | Do the ETCS learn procedure.

15. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Is DTC P1249 indicated? YES - If DTC P1249 is indicated, go to 5, and recheck. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. NO - Troubleshooting is complete.n

16. | Substitute a known-good ECM.

17. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P1249 is indicated, go to 5, and recheck. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. NO - Replace the original ECM.n