Acura TSX / Honda Accord CL. Manual — part 608

Fig. 69: Measuring Voltage Between ECM/PCM Connector Terminal A7 & Body Ground

12. Turn the ignition switch OFF.

13. Jump the SCS line with the HDS.

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

15. Check for continuity between ECM/PCM connector terminal A7 and body ground.

Is there continuity?

YES: Repair short in the wire between the ECM/PCM (A7) and the CKP sensor, then go to
step 18 .

NO: Go to step 24 .

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

Fig. 70: Checking For Continuity Between ECM/PCM Connector Terminal A7 & Body
Ground

16. Turn the ignition switch OFF.

17. Replace the CKP sensor (see CKP SENSOR REPLACEMENT ), then go to step 18.

18. Turn the ignition switch ON (II).

19. Reset the ECM/PCM with the HDS.

20. Clear the CKP pattern with the HDS.

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

22. Do the CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN

PROCEDURE ).

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

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P0335 is indicated, check for poor connections or loose terminals at the CKP
sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

indicated, go to the indicated DTC troubleshooting.

NO: Troubleshooting is complete.

24. 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 ).

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

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P0335 is indicated, check for poor connections or loose terminals at the CKP
sensor 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: 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 ).

DTC P0339: CKP SENSOR INTERMITTENT INTERRUPTION

1. Note the following freeze data.

z

Engine speed

z

Vehicle speed

2. Clear the DTC with the HDS.

3. Start the engine, and let it idle for 10 seconds.

4. Check the CKP NOISE COUNT in the DATA LIST with the HDS.

Are 0 counts 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 the CKP NOISE COUNT in the DATA LIST with the HDS.

Are 0 counts indicated?

YES: Go to step 7.

NO: Intermittent failure, system is OK at this time. Check for poor connections or loose
terminals at the CKP sensor and the ECM/PCM.

7. Check for poor or loose connections and terminals at the following:

z

CKP sensor

z

ECM/PCM

z

Engine ground

z

Body ground

Are the connections and terminals OK?

YES: Go to step 8.

NO: Repair the connectors or terminals, then go to step 11 .

8. Remove the cam chain case (see CAM CHAIN REMOVAL ), and check for damage on the CKP sensor

pulse plate.

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

Is the pulse plate damaged?

YES: Replace the CKP sensor pulse plate, then go to step 11 .

NO: Go to step 9.

9. Turn the ignition switch OFF.

10. Replace the CKP sensor (see CKP SENSOR REPLACEMENT ).

11. Turn the ignition switch ON (II).

12. Reset the ECM/PCM with the HDS.

13. Clear the CKP pattern with the HDS.

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

15. Do the CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN

PROCEDURE ).

16. Start the engine, and let it idle for 10 seconds.

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

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P0339 is indicated, check for poor connections or loose terminals at the CKP
sensor 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.

DTC P0365: CMP SENSOR B NO SIGNAL

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine.

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

Is DTC P0365 indicated?

YES: Go to step 5.

NO: Intermittent failure, system is OK at this time. Check for poor connections or loose
terminals at CKP sensor B and the ECM/PCM.

5. Turn the ignition switch OFF.

6. Disconnect the CMP sensor B 3P connector.

7. Turn the ignition switch ON (II).

8. Measure voltage between CMP sensor B 3P connector terminal No. 3 and body ground.

Is there battery voltage?

YES: Go to step 9.

NO: Repair open in the wire between CMP sensor B and PGM-FI main relay 1, then go to
step 19 .

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX