Honda Civic. Manual — part 666

Body Ground

Is there continuity?

YES -Go to step 24.

NO -Repair open in the wire between the PCM (A19) and the FTP sensor, then
go to step 19.

17. Turn the ignition switch OFF.
18. Replace the FTP sensor (see FTP SENSOR REPLACEMENT ).
19. Reconnect all connectors.
20. Turn the ignition switch ON (II).
21. Reset the PCM with the HDS.
22. Do the PCM idle learn procedure, refer to the ECM/PCM IDLE LEARN

PROCEDURE .

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

Is DTC P1192 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.

24. Reconnect all connectors.
25. 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 ).

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

Is DTC P1192 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

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

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 P1193: FTP SENSOR CIRCUIT HIGH VOLTAGE

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

Is there about 4.61 V or more?

YES -Go to step 3.

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

3. Turn the ignition switch OFF.
4. Disconnect the FTP sensor 3P connector.
5. Connect FTP sensor 3P connector terminals No. 1 and No. 3 with a jumper

wire.

NOTE:

Before you troubleshoot, record all freeze data and any on-
board snapshot, and review the general troubleshooting
information (see GENERAL TROUBLESHOOTING
INFORMATION ).

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Fig. 26: Connecting FTP Sensor 3P Connector Terminals No. 1 And 3
With Jumper Wire

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

Is there about 4.61 V or more?

YES -Go to step 8.

NO -Go to step 22.

8. Turn the ignition switch OFF.
9. Remove the jumper wire from the FTP sensor 3P connector.

10. Turn the ignition switch ON (II).
11. Measure voltage between FTP sensor 3P connector terminals No. 1 and No. 2.

Fig. 27: Measuring Voltage Between FTP Sensor 3P Connector Terminals
No. 1 And 2

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Is there about 5 V?

YES -Go to step 12.

NO -Go to step 17.

12. Turn the ignition switch OFF.
13. Jump the SCS line with the HDS.
14. Disconnect PCM connector A (44P).
15. Connect FTP sensor 3P connector terminal No. 3 to body ground with a jumper

wire.

Fig. 28: Connecting FTP Sensor 3P Connector Terminal No. 3 To Body
Ground With Jumper Wire

16. Check for continuity between PCM connector terminal A26 and body ground.

Fig. 29: Checking Continuity Between PCM Connector Terminal A26 And
Body Ground

Is there continuity?

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX