TM 5-3805-293-23-2
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FUEL TRANSFER PUMP TEST CONTINUED
00035
8. Disconnect fuel prime pump harness connector FE-C4 (Figure 14, Item 4) from fuel prime pump (Figure 14,
Item 1).
N OT E
A diagnostic code may become active, disregard this code.
9. Activate fuel transfer pump, refer to Fuel Pump Relay Command Override steps 1 through 6 in this work
package.
10. Using a digital multimeter, probe fuel prime pump control circuit A893-OR for voltage between prime pump
harness connector FE-C4 terminal 1 (Figure 14, Item 3) and ground. Voltage should be between 18-26 volts
DC.
a. Voltage OK - Proceed to step 11.
b. Voltage NOT OK - Proceed to Test Step 4.
11. Select Disable Override button at bottom of screen to deactivate the fuel transfer pump.
N OT E
A diagnostic code may become active, disregard this code.
12. Activate fuel transfer pump, refer to Fuel Pump Relay Command Override steps 1 through 6 in this work
package.
13. Using a digital multimeter, measure for voltage between harness connector FE-C4 terminal 1 (Figure 14,
Item 3) and terminal 2 (Figure 14, Item 2). Voltage should be between 18-26 volts DC.
a. Voltage OK - Fuel pump is faulty, replace primary fuel filter base (WP 0174).
b. Voltage NOT OK - Proceed to step 14.
Figure 14. Fuel Prime Pump Harness Connector.
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