Honda Civic. Manual — part 667

YES -Go to step 29.

NO -Repair open in the wire between the PCM (A26) and the FTP sensor, then
go to step 24.

17. Turn the ignition switch OFF.
18. Jump the SCS line with the HDS.
19. Disconnect PCM connector A (44P).
20. Connect FTP sensor 3P connector terminal No. 1 to body ground with a jumper

wire.

Fig. 30: Connecting FTP Sensor 3P Connector Terminal No. 1 To Body
Ground With Jumper Wire

21. Check for continuity between PCM connector terminal A9 and body ground.

Fig. 31: Checking Continuity Between PCM Connector Terminal A9 And
Body Ground

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Is there continuity?

YES -Go to step 29.

NO -Repair open in the wire between the PCM (A9) and the FTP sensor, then
go to step 24.

22. Turn the ignition switch OFF.
23. Replace the FTP sensor (see FTP SENSOR REPLACEMENT ).
24. Reconnect all connectors.
25. Turn the ignition switch ON (II).
26. Reset the PCM with the HDS.
27. Do the PCM idle learn procedure, refer to the ECM/PCM IDLE LEARN

PROCEDURE .

28. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1193 indicated?

YES -Check for poor connections or loose terminals at the FTP sensor and the
PCM, then go to step 1.

NO -Troubleshooting is complete. If any other Temporary DTCs or DTCs are
indicated, go to the indicated DTC's troubleshooting.

29. Reconnect all connectors.
30. Update the PCM if it does not have the latest software (see UPDATING THE

PCM ), or substitute a known-good PCM (see SUBSTITUTING THE
PCM ).

31. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1193 indicated?

YES -Check for poor connections or loose terminals at the FTP sensor and the
PCM. If the PCM was updated, substitute a known-good PCM (see
SUBSTITUTING THE PCM ), then recheck. If the PCM was substituted, go
to step 1.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

NO -If the PCM was updated, troubleshooting is complete. If the PCM was
substituted, replace the original PCM, refer to the ECM/PCM
REPLACEMENT . If any other Temporary DTCs or DTCs are indicated, go
to the indicated DTC's troubleshooting.

LOW FUEL INDICATOR TROUBLESHOOTING

If the low fuel indicator is blinking, do this:

1. Turn the ignition switch ON (II).
2. Check the LOW FUEL INDICATOR in the DATA LIST with the HDS.

Is ON indicated?

YES -Intermittent failure, the system is OK at this time. Check for poor
connections or loose terminals at the fuel pressure switch and the PCM, then
disconnect the negative cable from the battery for a few seconds to reset the
low fuel indicator.

NO -Go to step 3.

3. Turn the ignition switch OFF.
4. Disconnect the fuel pressure switch 2P connector (see FUEL PRESSURE

SWITCH REPLACEMENT ).

5. Check for continuity between fuel pressure switch 2P connector terminal No. 2

and body ground.

NOTE:

If the PCM has any DTCs, do the DTC troubleshooting first.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Fig. 32: Checking Continuity Between Fuel Pressure Switch 2P Connector
Terminal No. 2 And Body Ground

Is there continuity?

YES -Go to step 6.

NO -Repair open in the wire between the fuel pressure switch and G401 (see
CONNECTOR INDEX ), then disconnect the negative cable from the battery
for a few seconds to reset the low fuel indicator.

6. Remove the driver's dashboard undercover, refer to the DRIVER'S

DASHBOARD UNDERCOVER REMOVAL/INSTALLATION .

7. Remove the fuel shut-off solenoid valve relay (A).

Fig. 33: Identifying Fuel Shut-Off Solenoid Valve Relay

8. Turn the ignition switch ON (II).
9. Measure voltage between fuel pressure switch 2P connector terminal No. 1 and

body ground.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX