Acura TSX / Honda Accord CL. Manual - part 521

Fig. 18: Checking For Continuity Between Throttle Actuator Control Module 16P Connector 
Terminal No. 12 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 18 and recheck. If DTC P0223 is not 
indicated, replace the original throttle actuator control module, then go to step 18. If DTC P0223 is 
indicated, go to step 16. 

NO - Repair open in the wire between the throttle body and the throttle actuator control module (TPS B 
line), then go to step 18. 

11. Turn the ignition switch OFF.  

12. Disconnect the throttle body 6P connector.  

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

14. Connect throttle body 6P connector terminal No. 4 to body ground with a jumper wire. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

Fig. 19: Connecting Throttle Body 6P Connector Terminal No. 4 To Body Ground With A Jumper 
Wire 

15. Check for continuity between throttle actuator control module 16P connector terminal No. 9 and body 

ground. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

Fig. 20: Checking For Continuity Between Throttle Actuator Control Module 16P Connector 
Terminal No. 9 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 18 and recheck. If DTC P0223 is not 
indicated, replace the original throttle actuator control module, then go to step 18. If DTC P0223 is 
indicated, go to step 16. 

NO - Repair open in the wire between the throttle body and the throttle actuator control module (SG line), 
then go to step 18. 

16. Turn the ignition switch OFF.  

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

18. Turn the ignition switch ON (II).  

19. Reset the ECM/PCM with the HDS.  

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

21. 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 P0223 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 P2135: TP SENSOR A/B VOLTAGE INCORRECT CORRELATION 

1. Turn the ignition switch ON (II).  

2. Clear the DTC 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 P2135 indicated? 

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. Turn the ignition switch OFF.  

6. Disconnect the intake air duct from the throttle body.  

7. Turn the ignition switch ON (II).  

8. Clear the DTC with the HDS.  

9. Visually check the throttle valve operation. 

Does the valve move to the fully closed position temporarily? 

YES - Go to step 14. 

NO - Go to step 10. 

10. Turn the ignition switch OFF.  

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

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

12. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX