Acura TSX / Honda Accord CL. Manual — part 615

Fig. 89: Checking For Continuity Between ECM/PCM Connector Terminal E15 & Body
Ground

11. Turn the ignition switch OFF.

12. Replace the under-hood fuse/relay box (see REMOVAL AND 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. Start the engine.

17. Turn on the headlights.

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

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P1297 is indicated, check for poor connections or loose terminals at the ELD
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.

19. 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 ).

20. Start the engine.

21. Turn on the headlights.

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

Are any Temporary DTCs or DTCs indicated?

YES: If DTC P1297 is indicated, check for poor connections or loose terminals at the ELD
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 P1298: ELD CIRCUIT HIGH VOLTAGE

1. Start the engine and let it idle.

2. Check the ELD in the DATA LIST with the HDS.

Is 0.2A or less indicated?

YES: Go to step 3.

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

3. Turn the ignition switch OFF.

4. Disconnect the ELD 3P connector.

5. Turn the ignition switch ON (II).

6. Measure voltage between ELD 3P connector terminal No. 1 and body ground.

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

Is there battery voltage?

YES: Go to step 7.

NO: Repair open in the wire between the No. 18 ACG (15A) fuse and the ELD, then go to
step 14 .

Fig. 90: Measuring Voltage Between ELD 3P Connector Terminal No. 1 & Body Ground

7. Turn the ignition switch OFF.

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

8. Connect ELD 3P connector terminal No. 3 to body ground with a jumper wire.

Fig. 91: Connecting ELD 3P Connector Terminal No. 3 To Body Ground With A Jumper Wire

9. Jump the SCS line with the HDS.

10. Disconnect ECM/PCM connector E (31P).

11. Check for continuity between ECM/PCM connector terminal E15 and body ground.

Is there continuity?

YES: Go to step 12.

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX

NO: Repair open in the wire between the ECM/PCM (E15) and the ELD, then go to step 14 .

Fig. 92: Checking For Continuity Between ECM/PCM Connector Terminal E15 & Body
Ground

12. Check for continuity between ELD 3P connector terminal No. 2 and body ground.

Is there continuity?

YES: Go to step 13.

NO: Repair open in the wire between the ELD and G201, then go to step 14 .

2004 Acura TSX

2004 ENGINE PERFORMANCE PGM-FI System - TSX