Acura TSX / Honda Accord CL. Manual — part 520

Fig. 15: Checking For Continuity Between Throttle Actuator Control Module 16P Connector
Terminal No. 11 And Body Ground

Is there continuity?

YES - Substitute a known-good throttle actuator control module (see THROTTLE ACTUATOR
CONTROL MODULE REPLACEMENT ), then go to step 17 and recheck. If DTC P0222 is not
indicated, replace the original throttle actuator control module, then go to step 17. If DTC P0222 is
indicated, go to step 15.

NO - Repair open in the wire between the throttle body and the throttle actuator control module (VCC
line), then go to step 17.

15. Turn the ignition switch OFF.

16. Replace the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION ).

17. Turn the ignition switch ON (II).

18. Reset the ECM/PCM with the HDS.

19. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).

20. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P0222 is indicated, check for poor connections or loose terminals at the throttle body and
the throttle actuator control module, then go to step 1 . If any other Temporary DTCs or DTCs are
indicated, go to the indicated DTC troubleshooting.

NO - Troubleshooting is complete.

DTC P0223: TP SENSOR B CIRCUIT HIGH VOLTAGE

1. Turn the ignition switch ON (II).

2. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are DTC P0123 and P0223 indicated at the same time?

YES - Go to step 11.

NO - Go to step 3.

3. Clear the DTC with the HDS.

4. Check TP SENSOR-B in the DATA LIST with the HDS.

Is there about 4.8 V or higher?

YES - Go to step 5.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the
throttle body and the throttle actuator control module.

5. Measure voltage between throttle body 6P connector terminal No. 3 and body ground.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

Fig. 16: Measuring Voltage Between Throttle Body 6P Connector Terminal No. 3 And Body
Ground

Is there about 5 V ?

YES - Go to step 16.

NO - Go to step 6.

6. Turn the ignition switch OFF.

7. Disconnect the throttle actuator control module 16P connector.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

8. Disconnect the throttle body 6P connector.

9. Connect throttle body 6P connector terminal No. 3 to body ground with a jumper wire.

Fig. 17: Connecting Throttle Body 6P Connector Terminal No. 3 To Body Ground With A Jumper
Wire

10. Check for continuity between throttle actuator control module 16P connector terminal No. 12 and body

ground.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX