Fuel Pump Relay: Testing and Inspection

Component Testing Instructions

Component testing procedures are provided to determine whether a component is good or bad.

Testing information for each component includes a schematic, a view of the terminal locations and step-by-step test procedures. Terminal locations are identified by numbers or letters that may be on the component or next to it.







The component connector MUST BE REMOVED before testing. To test a single circuit within the component, select that circuit under the column "Circuit to test". If you wish to test the complete component, perform all tests.

Connect the tester to the terminals shown in the second column and operate the component as shown in the third column.

















Component Testing Procedure (Voltage Applied)

Disconnect the ohmmeter; connect pins 2 and 3 to 12 V DC power and pin 1 to ground. Measure voltage between pin 5 and pin 1. If the voltage is 12 V, continue with the test. If not, replace the relay. Disconnect power from pin 2 and measure voltage between pin 4 and pin 1. If the voltage is 12 V, the relay is okay. If not, replace the relay.