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