KIT-SEAL- 4173690 - Caterpillar

Table 1
Event Code    
Description    Conditions which Activate the Code    System Response    
E226(3) Driven Equipment Not Ready     The engine is ready to start. However, the Electronic Control Module (ECM) has received a signal which indicates that the driven equipment is not ready for the engine to start.     The shutdown output is activated. Engine cranking is prevented. The code is logged.    
E270(3) Driven Equipment Shutdown Requested     The crank terminate relay is set and the engine is running. The input requests a shutdown for 200 ms.     The fuel is shut off. The shutdown output is activated. The code is logged.    Probable Causes
The ECM has received a "Start Inhibit" or a "Shutdown" signal.
The circuit for the signal is faulty.Recommended Actions
Check the Driven Equipment
Determine whether the driven equipment has generated a "Start Inhibit" or "Shutdown" request. Determine the cause for the request. Service the driven equipment according to the recommendations of the OEM of the equipment.Check the Circuit for the Input
The circuit for the input is routed to the ECM via one of the customer connectors in the terminal box. Either the 70-pin connector (J3) or the 47-pin connector (J4) can be used. Refer to the engine's electrical Schematic. Check the wiring between the driven equipment and the ECM for damage and/or corrosion. Refer to Troubleshooting, "Electrical Connectors - Inspect". Repair the wiring, as needed.Check the resistance of the circuit. The correct resistance of the circuit is 5 Ohms or less. If the resistance is greater than 5 Ohms, locate the source of the excessive resistance. Make repairs, as needed.