Acura TSX / Honda Accord CL. Manual - part 529

 

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Acura TSX / Honda Accord CL. Manual - part 529

 

 

10. Release the throttle valve. 

Does the throttle valve return? 

YES - Clean the throttle body (see THROTTLE BODY CLEANING ), then go to step 13. 

NO - Go to step 11. 

11. Turn the ignition switch OFF.  

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

13. Turn the ignition switch ON (II).  

14. Reset the ECM/PCM with the HDS.  

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

16. Turn the ignition switch OFF, and wait 10 seconds.  

17. Turn the ignition switch ON (II).  

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

Are any Temporary DTCs or DTCs indicated? 

YES - If DTC P1683 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 P1684: THROTTLE VALVE RETURN SPRING PERFORMANCE PROBLEM 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

3. Start the engine. Hold the engine speed at 3,000 rpm with no load (in Park or neutral) until the radiator 

fan comes on, then let it idle.  

4. Turn the ignition switch OFF, and wait 10 seconds.  

5. Turn the ignition switch ON (II).  

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

Is DTC P1684 indicated? 

YES - Go to step 7. 

CAUTION: Do not insert your fingers into installed throttle body when you turn the 

ignition switch ON (II) or while the ignition switch is ON (II). Otherwise, you 
will have serious injury to your fingers if the throttle valve was activated.

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

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. 

7. Turn the ignition switch OFF.  

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

9. Push the throttle valve open as shown. 

Fig. 43: Pushing The Throttle Valve Open 

10. Release the throttle valve. 

NOTE:

z

Do not operate the ignition switch during the check.  

z

Be careful not to pinch your finger during the check. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

Does the throttle valve return? 

YES - Clean the throttle body (see THROTTLE BODY CLEANING ), then go to step 13. 

NO - Go to step 11. 

11. Turn the ignition switch OFF.  

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

13. Turn the ignition switch ON (II).  

14. Reset the ECM/PCM with the HDS.  

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

16. Turn the ignition switch OFF, and wait 10 seconds.  

17. Turn the ignition switch ON (II).  

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

Are any Temporary DTCs or DTCs indicated? 

YES - If DTC P1684 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 P2101: THROTTLE ACTUATOR SYSTEM MALFUNCTION 

1. Record the following freeze data. 

z

Engine speed  

z

Vehicle speed  

z

Accelerator position  

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 P2101 indicated? 

YES - Go to step 7. 

NO - Go to step 5. 

5. Test-drive the vehicle for several minutes in the range of the recorded freeze data.  

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

Is DTC P2101 indicated? 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

YES - Go to step 7. 

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the 
throttle body and at the throttle actuator control module, then clean the throttle body (see THROTTLE 
BODY CLEANING
 ). 

7. Turn the ignition switch OFF.  

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

9. Turn the ignition switch ON (II).  

10. Clear the DTC with the HDS.  

11. Do the ETCS TEST in the INSPECTION MENU with the HDS.  

12. Visually check the throttle valve operation. 

Does the throttle valve operate smoothly? 

YES - Clean the throttle body (see THROTTLE BODY CLEANING ), then go to step 20 and recheck. 
If DTC P2101 is indicated, go to step 18. 

NO - Go to step 13. 

13. Turn the ignition switch OFF.  

14. Disconnect the throttle body 6P connector.  

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

16. Connect throttle body 6P connector terminals No. 5 and No. 6 with a jumper wire. 

NOTE:

Be careful not to pinch your finger during the check.

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

 

 

 

 

 

 

 

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