KIT-TRANSMISSION GASKET 1396849 - Caterpillar

System Operation Description: The Electronic Control Module (ECM) receives electrical power from the Engine Control Switch (ECS) when the Engine Control Switch is in the STOP position, the DGCP ENABLE position, or the BLACK START ENABLE position. A signal is provided to the ECM that senses the position of the Engine Control Switch. When the ECM senses voltage on this input, the ECM will power up. If the voltage is removed from the input, the ECM will power down.With intermittent faults, you may want to bypass the engine wiring. Bypassing the wiring helps to locate the problem. If the problem is no longer present with the bypass in place, the engine wiring is faulty.
Illustration 1 g00925722
Illustration 2 g00598859
Test Step 1. Check for Connector Damage.
Verify that the circuit breakers on the Engine Instrument Panel are not tripped.
Turn BATTCB to the OFF position.
Turn the ECS to the OFF/RESET position.
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. Inspect all of the other connectors. Perform the diagnostic functional test Troubleshooting, "Inspecting Electrical Connectors".
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the ECM connector (allen head screw) for the proper torque of 6.0 N m (55 lb in).
Check the customer connector (allen head screw) for the proper torque of 2.25 0.25 N m (20 2 lb in).
Check the harness and the wiring for abrasion and pinch points.Expected Result:All connectors, pins, and sockets are completely coupled. The harness and wiring should be free of corrosion, abrasion or pinch points.Results:
OK - The connectors and wiring are okay. Proceed to test step 2.
Not OK - The connectors and/or wiring need repair.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Stop.Test Step 2. Check the Voltage to the ECM.
Disconnect the Primary ECM connector and the Secondary ECM connector J1/P1.
Turn BATTCB to the ON position.
Turn the ECS to the STOP position.Note: If a remote START/STOP switch is installed, the remote START/STOP switch must be in the COOL/STOP position.
Measure the voltage at the Primary ECM and the Secondary ECM. Measure the voltage between P1-6 and P1-5. Measure the voltage between P1-4 and P1-11. Measure the voltage between P1-23 and P1-11.Expected Result:The voltage should be 24 3 VDC.The difference between the three voltage measurements should be less than 0.5 VDC.Results:
OK - The ECM is receiving the correct voltage. Proceed to test step 8.
Not OK - The voltage is incorrect. The wiring or components between the battery and the ECM may be preventing the voltage from reaching the ECM. Proceed to test step 3.Test Step 3. Check the Black Start System for proper operation.
Turn BATTCB to the OFF position.
Turn the ECS to the OFF/RESET position.
Refer to the Black Start System technical