Acura TSX / Honda Accord CL. Manual — part 489

Fig. 6: Connecting PGM-FI Main Relay 2 (FUEL PUMP) 4P Connector Terminal No. 4 To Body
Ground With A Jumper Wire

8. Turn the ignition switch OFF.

9. Jump the SCS line with the HDS.

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

11. Check for continuity between body ground and ECM/PCM connector terminal E17.

Is there continuity?

YES: Go to step 12.

NO: Repair open in the wire between PGM-FI main relay 2 (FUEL PUMP) and the
ECM/PCM (E17).

2004 Acura TSX

2004 ENGINES Fuel Supply System - TSX

Fig. 7: Checking For Continuity Between Body Ground & ECM/PCM Connector Terminal
E17

12. Reinstall PGM-FI main relay 2 (FUEL PUMP).

13. Connect the ECM/PCM connector terminal E7 to body ground with a jumper wire.

2004 Acura TSX

2004 ENGINES Fuel Supply System - TSX

Fig. 8: Connecting The ECM/PCM Connector Terminal E7 To Body Ground With A Jumper Wire

14. Turn the ignition switch ON (II).

15. Measure voltage between ECM/PCM connector terminal E17 and body ground.

Is there battery voltage?

YES: Go to step 16.

NO: Replace PGM-FI main relay 2 (FUEL PUMP).

2004 Acura TSX

2004 ENGINES Fuel Supply System - TSX

Fig. 9: Measuring Voltage Between ECM/PCM Connector Terminal E17 & Body Ground

16. Turn the ignition switch OFF.

17. Reconnect ECM/PCM connector E (31P).

18. Open the SCS line with the HDS.

19. Turn the ignition switch OFF.

20. Turn the ignition switch ON (II), and measure voltage between ECM/PCM connector terminal E17 and

body ground within the first 2 seconds after the ignition switch was turned on.

Is there battery voltage?

YES: Update the ECM/PCM if it does not have the latest software, or substitute a known-
good ECM/PCM, then recheck (see ECM/PCM UPDATING AND SUBSTITUTION
FOR TESTING ). If the symptom/indication goes away with a know-good ECM/PCM,
replace the original ECM/PCM.

NO: Go to step 21.

2004 Acura TSX

2004 ENGINES Fuel Supply System - TSX