8469713 3 Mercruiser LEAD ASSEMBLY, HIGH TENSION - DISTRIBUTOR (20 3/4")

Illustration 1 g03341717
Schematic diagram of the fuel lift pump relay circuit
Illustration 2 g03342141
View of the pin location on the P1 connector for the fuel lift pump relay
(53) Fuel lift pump relay Test Step 1. Inspect Electrical Connectors and Wiring
Turn the keyswitch to the OFF position.
Check the fuses.
Check the harness for abrasion and pinch points from the relay back to the ECM and from the relay back to the battery.
Check the harness for abrasions and pinch points from the fuel lift pump back to the relay.
Thoroughly inspect the relay and the connector for the relay.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the fuel lift pump relay. Results:
All connectors, pins, and sockets are correctly coupled and/or inserted. The harness and connectors are free of corrosion, abrasion, and pinch points. The fuses are OK. - Proceed to Test Step 2.
There is a fault with the harness and connectors - Repair: Perform the following repair:Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are correctly connected. Replace any blown fuses.STOPTest Step 2. Override the Fuel Lift Pump Relay
Turn the keyswitch to the OFF position.
Connect the electronic service tool to the diagnostic connector.
Turn the keyswitch to the ON position.
Use the electronic service tool