## DTC Troubleshooting: P0222 (7)

DTC P0222: | TP Sensor B Circuit Low Voltage

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

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

3. | Turn the ignition switch OFF.

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

5. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are DTC P0107, P0122, P0222 and P2122 indicated at the same time? YES - Go to 23. NO - Go to 6.

6. | Open the throttle to full position several times.

7. | Check the TP SENSOR-B in the DATA LIST with the HDS. Is there about 0° (REL), 0 % (REL), or 0.42 V or less when the throttle is fully opened? YES - Go to 8. NO - Intermittent failure, system is OK at this time.Check for poor connections or loose terminals at the TP sensor B and the ECM.n

8. | Turn the ignition switch OFF.

9. | Disconnect the throttle body 6P connector.

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

11. | At the wire harness side, measure voltage between the throttle body 6P connector terminals No. 1 and No. 2. Is there about 5 V? YES - Go to 12. NO - Go to 19.

12. | Turn the ignition switch OFF.

13. | At the throttle body side, measure resistance between the throttle body 6P connector terminals No. 1 and No. 5. Is there continuity? YES - Go to 14. NO - Go to 31.

14. | At the throttle body side, measure resistance between the throttle body 6P connector terminals No. 2 and No. 5. Is there about 0 W? YES - Go to 31. NO - Go to 15.

15. | Connect the ECM test harness and the test pin box to the wire harness only, not to the ECM.

16. | Check for continuity between test pin box terminal No. 78 and body ground. Is there continuity? YES - Repair short in the wire between the ECM connector No. 3 terminal No. 49 (test pin box terminal No. 78) and the TP sensor B, then go to 33. NO - Go to 17.

17. | Connect the throttle body 6P connector terminal No. 5 to body ground with a jumper wire.

18. | Check for continuity between test pin box terminal No. 78 and body ground. Is there continuity? YES - Go to 38. NO - Repair open in the wire between the ECM connector No. 3 terminal No. 49 (test pin box terminal No. 78) and the TP sensor B, then go to 33.

19. | Turn the ignition switch OFF, and wait 10 seconds.

20. | Connect the ECM test harness and the test pin box between the ECM and connector.

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

22. | Measure voltage between test pin box terminals No. 33 and No. 77. Is there about 5 V? YES - Repair open in the wire between the ECM connector No. 3 terminal No. 4 (test pin box terminal No. 33) and the TP sensor B, then go to 33. NO - Go to 38.

23. | Turn the ignition switch OFF, and wait 10 seconds.

24. | Connect the ECM test harness and the test pin box to the wire harness only, not to the ECM.

25. | Disconnect the connectors from the these sensors: MAP sensor Throttle body APP sensor

26. | Check for continuity between body ground and the test pin box terminals No. 33 and No. 46 individually. Is there continuity? YES - Repair short in the wire between the ECM connector No. 3 terminal No. 4 or No. 17 (test pin box terminal No. 33 or No. 46) and the each sensor, then go to 33. NO - Go to 27.

27. | Connect the ECM test harness to the ECM.

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

29. | Measure voltage between test pin box terminal No. 46 and body ground. Is there about 5 V? YES - Go to 30. NO - Go to 38.

30. | Continue to monitor voltage at the test pin box terminals No. 46 while reconnecting the following sensors, one at a time. MAP sensor Throttle body APP sensor Did the voltage drop to about 0 V? YES - Replace the sensor that caused the voltage to drop, then go to 33. NO - Go to 38.

31. | Turn the ignition switch OFF.

32. | Replace the throttle body.

33. | Reconnect all connectors.

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

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

36. | Do the ETCS learn procedure.

37. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0222 is indicated, check for poor connections or loose terminals at the TP sensor B and the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. NO - Troubleshooting is complete.n

38. | Substitute a known-good ECM.

39. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0222 is indicated, check for poor connections or loose terminals at the TP sensor B and the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. NO - Replace the original ECM.