Honda Civic. Manual — part 659

to the indicated DTC's troubleshooting.

DTC P0183: FUEL TEMPERATURE SENSOR CIRCUIT HIGH VOLTAGE

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

HDS.

Is about - 40°F (-40°C) or less, or 4.92 V or more 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 fuel temperature sensor and the PCM.

3. Turn the ignition switch OFF.
4. Disconnect the fuel temperature sensor 2P connector.
5. Connect fuel temperature sensor 2P connector terminals No. 1 and No. 2 with a

jumper wire.

Fig. 4: Connecting Fuel Temperature Sensor 2P Connector Terminals No.
1 And 2 With Jumper Wire

6. Turn the ignition switch ON (II).

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. Check the FUEL TEMPERATURE SENSOR in the DATA LIST with the

HDS.

Is about -40°F (-40 °C) or less, or 4.92 V or more indicated?

YES -Go to step 8.

NO -Go to step 11 20.

8. Turn the ignition switch OFF.
9. Remove the jumper wire from the fuel temperature sensor 2P connector.

10. Turn the ignition switch ON (II).
11. Measure voltage between fuel temperature sensor 2P connector terminal No. 2

and body ground.

Fig. 5: Measuring Voltage Between Fuel Temperature Sensor 2P
Connector Terminal No. 2 And Body Ground

Is there about 5 V?

YES -Go to step 12.

NO -Go to step 16.

12. Turn the ignition switch OFF.
13. Jump the SCS line with the HDS.
14. Disconnect PCM connector B (44P).
15. Check for continuity between fuel temperature sensor 2P connector terminal

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

No. 1 and PCM connector terminal B33.

Fig. 6: Checking Continuity Between Fuel Temperature Sensor 2P
Connector Terminals

Is there continuity?

YES -Go to step 27.

NO -Repair open in the wire between the PCM (B33) and the fuel temperature
sensor, then go to step 22.

16. Turn the ignition switch OFF.
17. Jump the SCS line with the HDS.
18. Disconnect PCM connector B (44P).
19. Check for continuity between fuel temperature sensor 2P connector terminal

No. 2 and PCM connector terminal B5.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Fig. 7: Checking Continuity Between Fuel Temperature Sensor 2P
Connector Terminals

Is there continuity?

YES -Go to step 27.

NO -Repair open in the wire between the PCM (B5) and the fuel temperature
sensor, then go to step 22.

20. Turn the ignition switch OFF.
21. Replace the fuel temperature sensor (see FUEL TEMPERATURE SENSOR

REPLACEMENT ).

22. Reconnect all connectors.
23. Turn the ignition switch ON (II).
24. Reset the PCM with the HDS.
25. Do the PCM idle learn procedure, refer to the ECM/PCM IDLE LEARN

PROCEDURE .

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

Is DTC P0183 indicated?

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

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX