KIT-SEAL 1184131 - Caterpillar

The connection of any electrical equipment and the disconnection of any electrical equipment may cause an explosion hazard which may result in injury or death. Do not connect any electrical equipment or disconnect any electrical equipment in an explosive atmosphere.
Probable Causes
Electrical power to Electronic Control Module (ECM)
Personality module
Remote shutdown switch (if applicable)
Air shutoff circuit
Starting motor solenoid or starting circuit
Engine speed/timing sensors
Electrical connections to the electronic unit injector
Injection actuation pressure
Fuel supply
Combustion problemRecommended Actions
Electrical power to ECM
Turn the keyswitch to the OFF position.
Check the positive battery and negative battery connections to the ECM.
Perform a pull test on positive battery wires and negative battery wires.
Check the negative battery connection to the engine ground.
Turn the keyswitch to the ON position.
The warning lamps should illuminate for five seconds.If the warning lamp illuminates for five seconds, continue with this procedure.If the warning lamp does not illuminate for five seconds, refer to Troubleshooting, "Electrical Power Supply Circuit - Test".Personality Module
If a new ECM has been installed on the engine, the engine will not start. The ECM will not communicate with the Caterpillar Electronic Technician (ET) until the correct personality module (flash file) has been flashed into the ECM.Check for a 253-02 Personality Module mismatch that is active or logged. If the code is active, update the personality module in the ECM. Refer to Troubleshooting, "Flash Programming".Remote Shutdown Switch (If Equipped)
Access the Cat ET screen that displays the remote shutdown switch status. The remote shutdown switch status on the Cat ET is called "User Shutdown".
Table 1
"User Shutdown Status"     Switch Status     Measured Voltage at P1-44 or P61-27    
ON     Negative battery     <0.9 VDC    
OFF     Open circuit     >10 VDC    If the voltage is not in the proper range, refer to Troubleshooting, "Remote Shutdown Switch Circuit - Test".Air Shutoff Circuit
Refer to Troubleshooting, "Air Shutoff System - Test" for additional information.Starting Motor Solenoid or Starting Circuit
Test the operation of the starting motor solenoid.
Check the engine wiring to the starting motor solenoid.
Test the operation of the starting motor.
Inspect the starter motor pinion and the flywheel ring gear for damage.Engine Speed/Timing Sensors
Observe the engine speed on the Cat ET while the engine is being cranked.This situation may require a direct hookup to the batteries in order to power the Cat ET while the engine is cranking. Refer to illustration 1 for the wiring diagram.
Illustration 1 g00781203
Direct connection of Cat ET to the P1 connectorIf the engine is cranking and Cat ET displays 0 rpm, a problem exists in the circuits for the engine speed/timing sensors. Refer to Troubleshooting, "Engine Speed/Timing Sensor Circuit - Test".If an engine speed is present, check the sensor installation. If the sensor is not properly installed, the ECM may read engine speed, but the ECM cannot determine the tooth pattern. The ability for the ECM to read the tooth pattern is necessary to determine the cylinder position. Engine speed is present when engine speed is greater than 50 rpm. Refer to Troubleshooting, "Engine Speed/Timing Sensor Circuit - Test".Electrical