DTC B1500 Fuel Sender Open/Short-Circuit Detection
DTC DETECTING CONDITION:
The fuel gauge circuit is open or shorted.
TROUBLE SYMPTOM:
- Defective fuel gauge.
- Fuel level warning light blinks.
WIRING DIAGRAM:
Fuel gauge system <Ref. to WIRING DIAGRAM , Fuel Gauge System.>
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK DTC. Read the DTC of the combination meter using the Subaru Select Monitor. <Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) .> |
Is DTC B1500 displayed? (Current malfunction) | Go to step 2. | Go to step 7. |
2 CHECK COMBINATION METER.
|
Is the operation of combination meter OK? | Go to step 3. | Replace the combination meter. <Ref. to Combination Meter .> |
3 CHECK HARNESS.
|
Is the resistance 10 Ω or less? | Go to step 4. | Repair the open circuit of harness or replace harness. |
| 4 CHECK HARNESS. Using the tester, measure the resistance between terminals. Connector & terminal (i10) No. 25 - Chassis ground: (i10) No. 37 - Chassis ground: |
Is the resistance 10 Ω or less? | Repair the short circuit of harness or replace harness. | Go to step 5. |
| 5 CHECK FUEL SUB LEVEL SENSOR. Check the fuel sub level sensor as a single part. <Ref. to INSPECTION , Fuel Sub Level Sensor.> <Ref. to INSPECTION , Fuel Sub Level Sensor.> |
Is the check result OK? | Go to step 6. | Replace the sensor. |
| 6 CHECK FUEL LEVEL SENSOR. Check the fuel level sensor as a single part. <Ref. to INSPECTION , Fuel Level Sensor.> <Ref. to INSPECTION , Fuel Level Sensor.> |
Is the check result OK? | Go to step 7. | Replace the sensor. |
7 CHECK CONNECTOR.
|
Is there poor contact of connector? | Repair or replace the poor contact of connector. | Go to step 8. |
| 8 CHECK CURRENT DATA. Using the Subaru Select Monitor, display the «Fuel level resistance» from {Data monitor}. <Ref. to READ CURRENT DATA .> |
Does the data display 10 - 570 Ω? | System is normal. | Replace the combination meter. <Ref. to Combination Meter .> |