Fuel Pump Relay (VANAGON)
- Check terminal No. 30 and terminal No. 86 of fuel pump relay for battery voltage. If battery voltage is not present, check circuit for short or open circuit.
- If battery voltage is present, remove relay and attach ohmmeter probe to terminal No. 85. Attach other probe to ground. Continuity should be present while cranking engine.
- If not, check for continuity between terminal No. 85 of fuel pump relay and terminal No. 3 of ECU connector. If continuity is present, circuit is okay but ECU is not switching to ground. Replace ECU and install fuel pump relay.
- If fuel pump will not operate, turn ignition switch to the "OFF" and then "ON" position. Ensure battery voltage is present at fuel pump relay No. 87 for about 5 seconds after ignition is switched on. If not, replace fuel pump relay. If okay, check voltage supply and ground circuit of fuel pump. If okay, replace fuel pump.