GUIDE AS. (RH) 2174353 - Caterpillar

Table 2
Event Codes for the Transmission ECM (MID 81)    
Code (Level)    Description    Activation    
E49 (2)     Coasting in Neutral     The event is logged when the machine is in Neutral, the ground speed is above 10 km/h (6.2 mph) for longer than 5 seconds, and the engine speed is below 1300 RPM.
Ensure that transmission is in gear while moving.    
E155 (2)     High Torque Converter Oil Temperature     This event is logged when the torque converter oil temperature is greater than
134° C (273.2° F).
Change machine operation to allow TCO to cool.    
E155 (3)     High Torque Converter Oil Temperature     This event is logged when the torque converter oil temperature is greater than
144° C (291.2° F).
Change machine operation to allow TCO to cool. If needed, park the machine and set engine at high idle until TCO temp event clears.    
E284 (2)     Low Brake Accumulator Pressure     Brake Accumulator Pressure is Low AND Ground Speed ≤
0.8 km/h (0.5 mph)for 2 seconds
The accumulator system should be inspected for leaks or a faulty valve. The system may require a recharge of nitrogen. A check of the fan/brake valve and pump should also be performed.    
E284 (3)     Low Brake Accumulator Pressure     Brake Accumulator Pressure is Low AND Ground Speed ≤
0.8 km/h (0.5 mph)for 30 seconds
OR
Brake Accumulator Pressure is Low AND Ground Speed >
0.8 km/h (0.5 mph)for 2 seconds
Event deactivates when Brake Accumulator Pressure is OK for 1 second
The accumulator system should be inspected for leaks or a faulty valve. The system may require a recharge of nitrogen. Inspect the fan/brake valve and pump.    
E329 (2)     Transmission Filter Plugged     When the Transmission Oil Filter Bypass Switch has been bypassing for 30 seconds with transmission oil temperature > 65° C.
Event deactivates with machine shutdown.
Replace the filter. Refer to Operation and Maintenance Manual , "Transmission Oil Filter - Replace".    
E329 (3)     Transmission Filter Plugged     When the Transmission Oil Filter Bypass Switch has been bypassing for 120 seconds with transmission oil temperature > 65°C. Events deactivate when Transmission Oil Filter Bypass Switch = Not Bypassing for 2 seconds
OR
Transmission Oil Temperature < 65°C
Replace the filter. Refer to Operation and Maintenance Manual , "Transmission Oil Filter - Replace".
Cut filter and inspect for debris. If event returns, check filter bypass switch circuit, refer to the electric schematic.    
E334 (2)     Low Autolube Pressure     The event is logged when the autolube system is not building enough pressure to ensure that the injectors trigger.
Reference:
Testing and Adjusting, RENR5397, "Automatic Lubrication System Troubleshooting"
Service Magazine, SEPD1719, "A Procedure Is Now Available for Resolving Low Lube Pressure Faults (EID 334) On Certain Large Wheel Loader Machines {7510, 7516, 7540}".    
E490 (2)     Parking Brake Applied While Shift Lever Not in Neutral     The event is logged when the parking brake is engaged, the engine speed is greater than 400 RPM, and the machine is not in Neutral.
Disengage parking brake when appropriate, prior to