FixVault

5. Fuel Pump

NOTE: Check connectors - It is critical that the connector is free from any signs of corrosion or deformities. Clean/repair as necessary.

With the ignition on.

Using a 12-volt test light connected across the Fuel Pump harness connector.

With the DRB III(R), actuate the Fuel Pump Relay.

Fig 1: Actuating Fuel Pump Relay
G01861833Courtesy of DAIMLERCHRYSLER CORP.

Does the test light illuminate brightly? 

  1. Yes  >> Replace the Fuel Pump. See FUEL SYSTEM article.

    See POWERTRAIN VERIFICATION TEST - VER 3  .

  2. No  >> Repair the fuel pump ground circuit for an open.

    See POWERTRAIN VERIFICATION TEST - VER 3  .