WINDOW GP 1686450 - Caterpillar

you do not disable the Air Start the engine will start.
Disable the Air Start.
Operate the Black Start Push Button. Observe the status on the Cat ET.Expected Result:The status should change when the position is changed.Results:
OK - The button is operating normally. Proceed to test step 3.
Not OK - No change is observed on the Cat ET when the Black Start Push Button is operated. Proceed to test step 4.Test Step 3. Check the Switch Status on the Cat ET.
Install the Cat ET.
Observe the status for the Black Start Push Button.
Turn the ECS to the BLACK START ENABLE position. The engine should be OFF.
Turn the ECS to the STOP position.Expected Result:The status of the switch should change from "ON" to "OFF".Results:
OK - The status of the switch changes from "ON" to "OFF".Repair: If you are troubleshooting an intermittent fault, perform the diagnostic functional test Troubleshooting, "Inspecting Electrical Connectors". Stop.
Not OK - The status of the switch did not change from "ON" to "OFF". Proceed to test step 5.Test Step 4. Bypass the Wiring Harness.
Construct a jumper wire that