VALVE-BRAKE 3440924 - Caterpillar

Test Step 1. Check for Connector Damage.
Turn the engine control to the STOP position.
Turn the breaker at the battery to the OFF position.
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. Inspect all of the other connectors. Refer to Troubleshooting, "Inspecting Electrical Connectors" for details.
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:The connectors and wiring should be free of the following problems: damage, corrosion, abrasion and incorrect attachment.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 Manual Ether Switch Status on ET.
Remove the ether canister from the ether solenoid.
Connect the ET at the service tool connector.
Connect the main power.
Press the Ether Switch. Observe the Ether Switch status on the ET.Expected Result:The parameter for the Ether Switch should display "ON" while the Starting Aid Switch is toggled. The parameter for the Ether Switch should display "OFF" when the switch is released.Results:
OK - The ECM is properly reading the position of the Starting Aid Switch. Proceed to test step 3.
Not OK - The ECM is not properly reading the position of the Starting Aid Switch. Proceed to test step 4.Test Step 3. Check the Supply Voltage to the Ether Start Solenoid.
The ether canister must be removed prior to activating this test.
Remove the ether canister(s) from the ether solenoid(s).
Connect the main power.
Select Diagnostic Tests from the Electronic Service Tool.
Select the "Override Parameters" on the Electronic Service Tool.
Activate the Ether Override.
Measure the supply voltage at the Ether Start Solenoid between terminal board 1 pin-2 and terminal board 1 pin-4.
Disconnect the wires and listen for the Ether Start Valve.Expected Result:The supply voltage should be slightly less than battery voltage. A click should be heard when the ether solenoid activates the valve. This indicates correct operation of the valve.Results:
OK - The Ether Injection System is working properly.Repair: Verify that there is ether in the ether canisters. Replace the ether canisters on the engine. Reset the system and check for any active diagnostic codes. Stop.
Not OK - The Ether Injection System is not working properly. Proceed to test step 5.Test Step 4. Connect the Wires at the Ether Switch.
Disconnect wires from the Ether Switch.
Observe the Ether Switch status on the ET.
Short the wires together at the Ether Switch.
Observe the Ether Switch status on the ET.
Disconnect the main power.Expected Result:The Electronic Service Tool should display "OFF" when the switch wires are disconnected. The Electronic Service Tool should display "ON" when the switch wires are shorted together.Results:
OK - The wiring and connectors to the ECM are