DTC P0183 Fuel Temperature Sensor "A" Circuit High Input: Wiring Diagram
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK CURRENT DATA.
NOTE:
For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". Refer to
, SUBARU SELECT MONITOR .
|
Is the temperature less than -40°C (-40°F)? | Go to step 2. | Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE:
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
|
| 2 CHECK FOR POOR CONTACT. Repair any poor contact between the ECM and fuel temperature sensor connectors. |
Is there poor contact of the ECM or fuel temperature sensor connectors? | Repair any poor contact between the ECM and fuel temperature sensor connectors. | Go to step 3. |
3 CHECK HARNESS BETWEEN ECM AND FUEL TEMPERATURE SENSOR CONNECTOR.
|
Is the resistance less than 1 Ω? | Go to step 4. | Repair the harness and connector.
NOTE:
In this case, repair the following item:
|
4 CHECK HARNESS BETWEEN ECM AND FUEL TEMPERATURE SENSOR CONNECTOR.
|
Is the voltage 5 V or more? | Repair the short circuit to power in the harness between the ECM and fuel temperature sensor connector. | Replace the fuel temperature sensor. Refer to FUEL TEMPERATURE SENSOR Fuel Temperature Sensor. |