Acura TSX / Honda Accord CL. Manual — part 530

Fig. 44: Connecting Throttle Body 6P Connector Terminals No. 5 And No. 6 With A Jumper Wire

17. Check for continuity between throttle actuator control module 16P connector terminals No. 1 and No. 8.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

Fig. 45: Checking For Continuity Between Throttle Actuator Control Module 16P Connector
Terminals No. 1 And No. 8

Is there continuity?

YES - Substitute a known-good throttle actuator control module (see THROTTLE ACTUATOR
CONTROL MODULE REPLACEMENT ), then go to step 20 and recheck. If DTC P2101 is not
indicated, replace the original throttle actuator control module (see THROTTLE ACTUATOR
CONTROL MODULE REPLACEMENT ), then go to step 20. If DTC P2101 is indicated, go to step
18.

NO - Repair open in the wires between the throttle body and the throttle actuator control module (motor
drive lines), then go to step 20.

18. Turn the ignition switch OFF.

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

20. Turn the ignition switch ON (II).

21. Reset the ECM/PCM with the HDS.

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

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

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

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

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P2101 is indicated, check for poor connections or loose terminals at the throttle body and
the throttle actuator control module, then clean the throttle body (see THROTTLE BODY
CLEANING ), and go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated
DTC troubleshooting.

NO - Troubleshooting is complete.

DTC P2108: THROTTLE ACTUATOR CONTROL MODULE PROBLEM

1. Turn the ignition switch ON (II).

2. Clear the DTC 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.

Is DTC P2108 indicated ?

YES - Substitute a known-good throttle actuator control module (see THROTTLE ACTUATOR
CONTROL MODULE REPLACEMENT ), and recheck. If DTC P2108 is not indicated, replace the
original throttle actuator control module (see THROTTLE ACTUATOR CONTROL MODULE
REPLACEMENT ).

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

DTC P2118: THROTTLE ACTUATOR CURRENT RANGE/PERFORMANCE PROBLEM

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

2. Measure resistance between throttle actuator control module 16P connector terminals No. 1 and No. 8.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX

Fig. 46: Measuring Resistance Between Throttle Actuator Control Module 16P Connector
Terminals No. 1 And No. 8

Is there about 1.0 ohm or less?

YES - Go to step 3.

NO - Substitute a know-good throttle actuator control module (see THROTTLE ACTUATOR
CONTROL MODULE REPLACEMENT ), then go to step 7 and recheck. If DTC P2118 is not
indicated, replace the original throttle actuator control module (see THROTTLE ACTUATOR
CONTROL MODULE REPLACEMENT ), then go to step 7.

3. Disconnect the throttle body 6P connector.

4. At the throttle body side, measure resistance between throttle body 6P connector terminals No. 5 and No.

6 with the throttle fully closed.

2004 Acura TSX

2004 ENGINE PERFORMANCE Electronic Throttle Control System - TSX