864931 Mercruiser HOSE, Thermostat Housing to Upper Manifold (PORT)

Illustration 1 g01141623
Schematic for the tractor engine's lamp circuits
Test Step 1. Inspect the Electrical Connectors and the Wiring
Turn the keyswitch to the OFF position.
Illustration 2 g01141049
J1/P1 ECM connectors
Thoroughly inspect the J1/P1 ECM connectors. Also inspect each of the machine connectors that are in the circuit for each indicator lamp. Refer to Schematic for connector locations. Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 3 g01141626
P1 ECM connector
(P1-10) Start aid indicator control (scraper engine)
(P1-11) Throttle lock lamp control
Perform a 45 N (10 lb) pull test on each of the wires for the lamp circuits.
Check the torque of the allen head screw on the ECM connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points from the dash display back to the ECM. Expected Result:All of the connectors, pins and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion and of pinch points.Results:
OK - The harness and connectors appear to be in good repair. Proceed to Test Step 2.
Not OK - The connectors and/or wiring need repair.Repair: Repair the wiring and/or the connectors. Replace parts,