| 1 |
CHECK FUEL PUMP FOR OPERATION
- Verify that the battery is fully charged.
- Verify that the fuel tank assembly connector 0114-04 is securely connected.
- Key ON, Engine OFF (KOEO).
- Connect WDS or equivalent tester to DLC.
- Access the active command for the fuel pump.
- Press START to run fuel pump and listen for fuel pump operation.
- Press STOP.
- Did the fuel pump operate?
|
Yes |
Fuel pump is operating.
See
TEST 4: FUEL DELIVERY SYSTEM
for more troubleshooting procedures. |
| No |
Go to next step. |
| 2 |
CHECK FUEL PUMP FOR CONTINUITY
- Key OFF
- Disconnect fuel tank unit connector.
- Check for continuity between fuel tank unit power (W) and ground (R) terminals.
- Is continuity present?
|
Yes |
Go to next step. |
| No |
REPLACE fuel pump unit.
See
FUEL PUMP MODULE
. |
| 3 |
CHECK VOLTAGE AT FUEL PUMP VEHICLE HARNESS CONNECTED
- Disconnect fuel tank module connector.
- Key ON, Engine OFF (KOEO).
- Access the active command for the fuel pump.
- Press START to run fuel pump and measure the voltage at the power terminal (P/B) of the fuel tank module connector 0114-02.
- Press STOP.
- Is voltage greater than 10.5 volts?
|
Yes |
Go to next step. |
| No |
CHECK fuel pump relay and fuel pump shutoff switch. |
| 4 |
CHECK FUEL PUMP GROUND CIRCUIT
- Fuel tank assembly connector 0114-04 disconnected.
- Measure resistance between tank module connector 0114-02 ground terminal (B) and chassis ground.
- Is resistance less than 1 ohm?
|
Yes |
Ground circuit is OK.
RECHECK fuel pump. |
| No |
REPAIR open circuit on connector to chassis ground circuit. |