Acura TSX / Honda Accord CL. Manual - part 537

indicated, replace the original throttle actuator control module (see THROTTLE ACTUATOR 
CONTROL MODULE REPLACEMENT ), then go to step 50. If DTC U0107 is indicated, go to step 
56. 

NO - Repair open in the wire between the ECM/PCM (B20) and the throttle actuator control module, 
then go to step 50. 

46. Turn the ignition switch OFF.  

47. Jump the SCS line with the HDS.  

48. Disconnect ECM/PCM connector A (31P).  

49. Check for continuity between body ground and ECM/PCM connector terminals A8 and A9 individually. 

Fig. 66: Checking For Continuity Between Body Ground And ECM/PCM Connector Terminals A8 
And A9 

Is there continuity? 

YES - Check for poor connections or loose terminals at the throttle body, the throttle actuator control 
module, relay, the throttle actuator control module, and the ECM/PCM, then go to step 1. 

NO - Repair open in the wire between the ECM/PCM (A8, A9) and G101, then go to step 50.

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

50. Turn the ignition switch OFF.  

51. Reconnect all connectors.  

52. Turn the ignition switch ON (II).  

53. Reset the ECM/PCM with the HDS.  

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

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

Are any Temporary DTCs or DTCs indicated? 

YES - If DTC U0107 is indicated, check for poor connections or loose terminals at the throttle body, the 
throttle actuator control module, relay, the throttle actuator control module, and the ECM/PCM, then go 
to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. 

NO - Troubleshooting is complete. 

56. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see 

HOW TO SUBSTITUTE THE ECM/PCM ).  

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

Are any Temporary DTCs or DTCs indicated? 

YES - If DTC U0107 is indicated, check for poor connections or loose terminals at the throttle body, the 
throttle actuator control module, relay, the throttle actuator control module, and the ECM/PCM, than go 
to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. 

NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, 
replace the original ECM/PCM (see HOW TO REMOVE THE ECM/PCM FOR TESTING ). 

APP SENSOR REPLACEMENT 

1. Remove the throttle cable (see THROTTLE CABLE REMOVAL/INSTALLATION ).  

2. Disconnect the accelerator pedal position (APP) sensor 6P connector (A). 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

Fig. 67: Removing APP Sensor 

3. Remove the bolts (B), and the APP sensor (C).  

4. Install the sensor in the reverse order of removal.  

THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT 

1. Remove the right kick panel (see TRIM REMOVAL/INSTALLATION - DOOR AREA ).  

2. Push the tab (A) and disconnect the throttle actuator control module 16P connector (B). 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

  

 

Fig. 68: Removing Throttle Actuator Control Module 

3. Remove the bolts (C), and the throttle actuator control module (D).  

4. Install the control module in the reverse order of removal. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX