Acura TSX / Honda Accord CL. Manual — part 924

Fig. 10: Locating The Data Link Connector (DLC)

3. Update the PCM according to the procedures described on the HIM label. If the software in the PCM is

the latest, replace the PCM.

How to Substitute the PCM

1. Connect the HDS to the DLC.

2. Turn the ignition switch OFF.

3. Jump the SCS line with the HDS.

4. Remove the PCM, and install a known-good PCM.

5. Rewrite the immobilizer code with the PCM replacement procedure in the HDS; this will allow you to

start the engine.

6. After completing your test, reinstall the original PCM and rewrite the immobilizer code with the PCM

replacement procedure in the HDS again.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

HOW TO REMOVE & INSTALL THE PCM

1. Pull back the carpet, and remove the driver's and passenger's center lower cover (see PASSENGER'S

DASHBOARD LOWER COVER REMOVAL/INSTALLATION ).

2. Connect the HDS to the DLC.

3. Turn the ignition switch OFF.

4. Jump the SCS line with the HDS.

5. Disconnect PCM connectors.

6. Remove the two bolts, and remove the PCM.

7. Install the PCM in the reverse order of the removal.

HOW TO END A TROUBLESHOOTING SESSION

1. Turn the ignition switch OFF.

2. Connect the HDS to the DLC.

3. Turn the ignition switch ON (II).

4. Clear the DTC(s) on the HDS screen.

5. Turn the ignition switch ON (II).

6. Start the engine in the P or N position, and warm it up to normal operating temperature (the radiator fan

comes on). And continue to run the engine at idle with all accessories turned off for more than 5 minutes
to learn the idle control system in the PCM (see ECM/PCM IDLE LEARN PROCEDURE ).

7. To verify that the problem is repaired, test-drive the vehicle for several minutes at speeds over 30 mph

(50 km/h) or in freeze data range.

DTC TROUBLESHOOTING INDEX

NOTE:

This procedure must be done after any troubleshooting.

NOTE:

Record all freeze data and review General Troubleshooting Information (see
GENERAL TROUBLESHOOTING INFORMATION ) before you troubleshoot.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 11: DTC Troubleshooting Index (1 Of 3)

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 12: DTC Troubleshooting Index (2 Of 3)

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed