C-12 Generator Set Engine Caterpillar

E264 Emergency Stop Activated

Usage:

C-12 BCY

Conditions Which Generate This Code:

The Electronic Control Module (ECM) detects an open circuit on the emergency stop input to the ECM. Information on default settings and ranges for this event can be found in Troubleshooting, "Event Codes".

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Illustration 1	g01190081
Typical schematic

System Response:

The event code will be logged. The ECM disables the injection signals to the injector solenoids.

E264-3 (Shutdown)

The engine will shut down.

Test Step 1. Verify the Cause of the Emergency Stop

Talk to the operator and determine the reason for the emergency stop.

Expected Result:

The reason for the emergency stop has been determined.

Results:

OK - The reason for the emergency stop has been determined.
Repair: The emergency stop condition can be reset by performing the following steps:
1. Reset the emergency stop switch to the OFF position.
1. Cycle power to the ECM in order to clear the emergency stop condition.
STOP
Not OK - The emergency stop is not activated.
Repair: There may be an open in the circuit for the emergency stop. Refer to Illustration 1 as a reference for the following test step.
1. Check for an open circuit between the following test points:
  - ECM connector P1-23 and terminal 27 of the engine harness connector
  - Terminal 27 of the C37 harness connector and terminal TB3-14
  - Terminal TB3-14 and terminal 1A on the emergency stop switch
  - Terminal 1A on the emergency stop switch and terminal 2A on the emergency stop switch
  - Terminal 2A on the emergency stop switch and the battery disconnect switch
If an open circuit is detected between any of the test points, repair the wiring and/or replace damaged components. Check each connection for corrosion. Ensure that all wires are properly crimped and/or tightened.
STOP