81397M Mariner ROD, REVERSE LOCK

Illustration 1 g01121934
Typical switch inputs
Test Step 1. Check the Electrical Connectors and the Wiring
Place the keyswitch in the OFF position.
Illustration 2 g01146374
Location of the Electronic Control Module (ECM) (typical example)
(1) J1/P1 ECM connectors
Illustration 3 g01146383
Location of the customer connector (typical example)
(2) P61 customer connector
Thoroughly inspect connectors (1) and (2). Thoroughly inspect the connections for the suspect switch. Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 4 g01175187
P1 terminals for the various switches
(P1-22) Maintenance clear switch
(P1-23) Remote engine stop switch
(P1-40) Run/stop switch
(P1-41) Diagnostic reset switch
(P1-46) Droop-isochronous switch
(P1-47) Low idle switch
Illustration 5 g01175207
P61/J61 terminals for the various switches
(19) Run/stop switch
(34) Droop-isochronous switch
(35) Low idle switch
(36) Maintenance clear switch
(37) Diagnostic reset switch
(39) Remote engine stop switch
Perform a 45 N (10 lb) pull test on each of the wires in the circuit for the suspect switch.
Check the allen head screw on each ECM connector for the proper torque. Also, check the allen head screw on the customer connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and wiring for abrasions and for pinch points from the battery to the ECM. Expected Result:All 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 wiring and connectors appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem with the wiring and/or a connector.Repair: Repair the wiring and/or the connector. Replace parts, if necessary. Ensure that all of the seals are properly connected. Verify that the repair eliminates the problem.STOPTest Step 2. Test the Switch for Proper Operation
Disconnect the P1 connector.
Refer to Table 1. Determine the P1 terminal for the suspect switch.
Table 1
Terminals for the Switch Inputs
Name of the Switch P1 Terminals J61/P61 Terminals
Diagnostic reset switch 41 37
Droop-isochronous switch 46 34
Low idle switch 47 35
Maintenance clear switch 22 36
Remote engine stop switch 23 39
Run/stop switch 40 19
Connect one lead of a multimeter to the P1 terminal for the suspect switch. Connect the other meter lead to engine ground. Note: Wiggle the harnesses during the following measurements in order to reveal any intermittent short condition.
Measure the resistance between the P1 terminal for the suspect switch and engine ground.
Activate the switch and measure the resistance again. Expected Result:One resistance measurement indicates an open circuit. The other resistance measurement is less than ten Ohms.Results:
OK - One resistance measurement indicates an open circuit. The other resistance measurement is less than ten Ohms.Repair: The switch is operating correctly. The wiring does not have a short circuit or an open circuit. Operate the engine and check the switch for proper operation.If the switch does not operate correctly, there may be a short circuit between the circuit for the suspect switch and another circuit. Carefully reinspect the components. Refer to Troubleshooting, "Electrical Inspectors - Inspect". Locate the short circuit and make repairs.STOP
Not OK - Both resistance measurements indicate an open circuit or both resistance measurements are less than ten Ohms.Repair: There is a problem with the circuit for the switch. The problem could be in the switch, in the wiring, or in a connector.Carefully reinspect the components. Refer to Troubleshooting, "Electrical Inspectors - Inspect".If the inspection does not identify the faulty component, replace the switch and test the switch again.If the problem is not resolved, repair the wiring or the connector. Replace parts, if necessary. Verify that the problem is resolved.STOP