DETECTED CONDITION | POSSIBLE CAUSE | ||
C41 P0230 | No voltage is applied to fuel pump although fuel pump relay is turned ON, or voltage is applied to fuel pump, although fuel pump relay is turned OFF. | Fuel pump relay circuit open or short Fuel pump relay malfunction ECM malfunction | |
P0230 | H | Voltage is applied to fuel pump although fuel pump relay is turned OFF. | Fuel pump relay switch circuit shorted to power source Faulty fuel pump relay (switch side) |
L | No voltage is applied to fuel pump although fuel pump relay is turned ON. | Fuel pump relay coil circuit open or short Faulty fuel pump relay (coil side) |
Inspection
Step 1 (When indicating C41:)
- 1) Turn the ignition switch OFF.
- 2) Remove the right frame side cover. (9-5)
- 3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay. (6-6)
Is the FP relay OK?
YES | Y/B or O/W wire open or short or poor 39 connection Y/R or R/Bl wire open, shorted or poor 33 connection If wire and connection are OK, intermittent trouble or faulty ECM. Recheck each terminal and wire harness for open circuit and poor connection. Replace the ECM with a known good one, and inspect it again. |
NO | Replace the FP relay with a new one. |
Step 1 (When indicating P0230-H:)
- 1) Turn the ignition switch OFF.
- 2) Remove the right frame side cover. (9-5)
- 3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay. (6-6)
Is the FP relay OK?
YES | Y/R wire shorted to power source Y/B wire shorted to ground If wire and connection are OK, intermittent trouble or faulty ECM. Recheck each terminal and wire harness for open circuit and poor connection. Replace the ECM with a known good one, and inspect it again. |
NO | Replace the FP relay with a new one. |
- 4) After repairing the trouble, clear the DTC using SDS tool. (5-26)
Step 1 (When indicating P0230-L:)
- 1) Turn the ignition switch OFF.
- 2) Remove the right frame side cover. (9-5)
- 3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay. (6-6)
Is the FP relay OK?
YES | Y/B wire open or poor 39 connection O/W wire open or shorted to ground R/BI or Y/R wire open or shorted to ground or poor 33 connection If wire and connection are OK, intermittent trouble or faulty ECM. Recheck each terminal and wire harness for open circuit and poor connection. Replace the ECM with a known good one, and inspect it again. |
NO | Replace the FP relay with a new one. |
- 4) After repairing the trouble, clear the DTC using SDS tool. (5-26)