811352 2 Mercury LEVER, OIL PUMP

Illustration 1 g00676476
Illustration 2 g00676565
Test Step 1. Inspect Electrical Connectors and Wiring
Thoroughly inspect ECM vehicle harness connector J1/P1, the firewall bulkhead connector, and the suspect terminal for the lamp. Refer to Illustration 2. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that is associated with the suspect terminal for the lamp.Refer to Illustration 2.
Check the ECM connector (allen head screw) for the proper torque of 6.0 N m (55 lb in).
Check the harness and wiring for abrasion and pinch points from the battery to the ECM.Expected Result:All connectors, pins, and sockets should be completely coupled and/or inserted and the harness and wiring should be free of corrosion, abrasion, or pinch points.Results:
OK - Proceed to Test Step 2.
Not OK - Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled.STOPTest Step 2. Check for Normal Operation of the Warning Lamp(s)
Monitor the check engine lamp. Turn the ignition key switch to the ON position, while the engine is off. The lamp should turn on for five seconds. Then, the lamp should turn off.The lamp will continue flashing if there is an active diagnostic code. If there is an active diagnostic code, connect the Caterpillar Electronic Technician (ET) in order to read the active diagnostic code. Troubleshoot the problem.Note: The warning lamp will not turn on until the engine is cranked.
Connect ET in order to verify that the "Engine Monitoring" has been programmed to "Warning", "Derate", or "Shutdown". If "Engine Monitoring" is programmed to "Off", the warning lamp is not used and the ECM will not turn on the lamp.The "Engine Monitoring Lamps" parameter must be programmed to "Option 1" in order for the following lamps to function.
Low Oil Pressure
High Coolant Temperature
Low Coolant Level WarningThe lamp for the low coolant level also requires the "Coolant Level Sensor" parameter to be programmed to the "4-pin" option.While the warning lamp is being observed, start the engine. The warning lamp should turn on for a minimum of two seconds after the engine starts. Then, the warning lamp should turn off. If the lamp remains on, immediately shut down the engine.Expected Result:The warning lamp turns on and the Warning Lamp turns off per the above description.Results:
OK - The lamp appears to operating correctly at this time.STOP
Not OK - The lamp is not operating correctly.Repair: Perform the following diagnostic procedure:Use ET to determine if an "Engine Monitoring" condition is causing the lamp to turn on. If an "Engine Monitoring" condition is not present, perform the following diagnostic procedure. Proceed to Test Step 3.Test Step 3. Test the Lamp Circuit
Illustration 3 g00676787
Vehicle harness connector P1
Disconnect ECM vehicle harness connector J1/P1.
Fabricate a jumper wire 100 mm (4 inch) long. Crimp a Deutsch pin to both ends of the wire.
Insert the jumper into the terminal of the suspect lamp of connector P1. The jumper can be inserted into the following terminals in order to test the appropriate lamp circuit:
P1:31 (High Coolant Temperature Lamp)
P1:29 (Warning Lamp or Low Oil Pressure Lamp)
P1:30 (PTO Switch On Lamp or Low Coolant Level Lamp)
Connect the other side of the jumper wire to P1:65 (-Battery).
Turn the ignition key switch to the ON position.
While the lamp is being watched, insert the jumper wire and remove the jumper wire. Refer to Illustration 3.Expected Result: