Honda Civic. Manual — part 663

Is there continuity?

YES -Go to step 41.

NO -Repair open in the wire between the PCM (C10) and the fuel rail pressure
sensor, then go to step 35.

31. Turn the ignition switch OFF.
32. Jump the SCS line with the HDS.
33. Disconnect PCM connector A (44P).
34. Check for continuity between fuel rail pressure sensor 3P connector terminal

No. 3 and PCM connector terminal A9.

Fig. 14: Checking Continuity Between Fuel Rail Pressure Sensor 3P
Connector Terminals

Is there continuity?

YES -Go to step 41.

NO -Repair open in the wire between the PCM (A9) and the fuel rail pressure
sensor, then go to step 35.

35. Turn the ignition switch OFF.
36. Reconnect all connectors.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

37. Turn the ignition switch ON (II).
38. Reset the PCM with the HDS.
39. Do the PCM idle learn procedure, refer to the ECM/PCM IDLE LEARN

PROCEDURE .

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

Is DTC P0193 indicated?

YES -Check for poor connections or loose terminals at the fuel rail pressure
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.

41. Reconnect all connectors.
42. 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 ).

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

Is DTC P0193 indicated?

YES -Check for poor connections or loose terminals at the fuel rail pressure
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.

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.

DTC P1187: FTT SENSOR CIRCUIT LOW VOLTAGE

NOTE:

Before you troubleshoot, record all freeze data and any on-
board snapshot, and review the general troubleshooting

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

1. Turn the ignition switch ON (II).
2. Check the FTT SENSOR in the DATA LIST with the HDS.

Is about 356 °F (180 °C) or more, or 0.08 V or less indicated?

YES -Go to step 3.

NO -Intermittent failure, the system is OK at this time. Check for poor
connections or loose terminals at the FTT sensor and the PCM.

3. Turn the ignition switch OFF.
4. Disconnect the FTT sensor 2P connector (see FTP SENSOR

REPLACEMENT ).

5. Turn the ignition switch ON (II).
6. Check the FTT SENSOR in the DATA LIST with the HDS.

Is about 356 °F (180 °C) or more, or 0.08 V or less indicated?

YES -Go to step 7.

NO -Go to step 11.

7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Disconnect PCM connector A (44P).

10. Check for continuity between FTT sensor 2P connector terminal No. 2 and

body ground.

information (see GENERAL TROUBLESHOOTING
INFORMATION ).

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Fig. 15: Checking Continuity Between FTT Sensor 2P Connector
Terminal No. 2 And Body Ground

Is there continuity?

YES -Repair short in the wire between the PCM (A32) and the FTT sensor,
then go to step 13.

NO -Go to step 18.

11. Turn the ignition switch OFF.
12. Replace the FTT sensor (see FTP SENSOR REPLACEMENT ).
13. Reconnect all connectors.
14. Turn the ignition switch ON (II).
15. Reset the PCM with the HDS.
16. Do the PCM idle learn procedure, refer to the ECM/PCM IDLE LEARN

PROCEDURE .

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

Is DTC P1187 indicated?

YES -Check for poor connections or loose terminals at the FTT 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.

18. Reconnect all connectors.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX