Honda Civic. Manual — part 665

Fig. 21: Checking Continuity Between PCM Connector Terminal A32 And
Body Ground

Is there continuity?

YES -Go to step 29.

NO -Repair open in the wire between the PCM (A32) and the FTT sensor, then
go to step 24.

22. Turn the ignition switch OFF.
23. Replace the FTT 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 P1188 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.

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 P1188 indicated?

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

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

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 P1192: FTP SENSOR CIRCUIT LOW VOLTAGE

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

Is there about 0.23 V or less?

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

Is there about 0.23 V or less?

YES -Go to step 8.

NO -Go to step 7.

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

7. Measure voltage between FTP sensor 3P connector terminals No. 1 and No. 2.

Fig. 22: Measuring Voltage Between FTP Sensor 3P Connector Terminals
No. 1 And 2

Is there about 5 V?

YES -Go to step 17.

NO -Go to step 12.

8. Turn the ignition switch OFF.
9. Jump the SCS line with the HDS.

10. Disconnect PCM connector A (44P).
11. Check for continuity between FTP sensor 3P connector terminal No. 3 and

body ground.

Fig. 23: Checking Continuity Between FTP Sensor 3P Connector
Terminal No. 3 And Body Ground

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Is there continuity?

YES -Repair open in the wire between the PCM (A26) and the FTP sensor,
then go to step 19.

NO -Go to step 24.

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. 2 to body ground with a jumper

wire.

Fig. 24: Connecting FTP Sensor 3P Connector Terminal No. 2 To Body
Ground With Jumper Wire

16. Check for continuity between PCM connector terminal A19 and body ground.

Fig. 25: Checking Continuity Between PCM Connector Terminal A19 And

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX