TM 10-3930-675-10 0020 00-10 ERROR CODES - CONTINUED 0020 00 Table 4. Error Codes - Continued. ERROR CODE DISPLAY LAYOUT DRIVER ACTION ERROR CODE EXPLANATION VEHICLE LIMITATIONS 161 Stop Vehicle Put load down safely. Abort mission. Notify maintenance. Stop Vehicle Immediately Boom in valve, short circuit Cable to valve defective. Boom cannot be retracted. Uncontrolled self-retraction may occur. 163 Stop Vehicle Put load down safely. Abort mission. Notify maintenance. Stop Vehicle Immediately Boom out valve, broken circuit Cable to valve defective. Boom cannot be extended. 164 Stop Vehicle Put load down safely. Abort mission. Notify maintenance. Stop Vehicle Immediately Boom out valve, short circuit Cable to valve defective. Boom cannot be extended. Uncontrolled self-extension may occur. 166 Press RESET Finish mission. Notify maintenance. Warning - Degraded Operation Cooling fan valve - broken cir- cuit Cable to valve defective. Cooling fan will run at full speed. No fording activities possible. 167 Press RESET Finish mission. Notify maintenance. Warning - Degraded Operation Cooling fan valve - short circuit Cable to valve defective. Cooling fan may run at any speed. No fording activities possible. Overheating may occur. 169 Press RESET Finish mission. Notify maintenance. Warning - Degraded Operation Emergency   hydraulic   valve   - broken circuit Cable to valve defective. No hydraulic emergency operation is possible. 172 Press RESET Finish mission. Notify maintenance. Information/Maintenance Pump  turn  off  valve  -  broken circuit Cable defective. May be difficult to start because of engaged pumps. 191 Stop Vehicle Abort mission. Notify maintenance. Stop Vehicle Immediately Temperature in front wheel end above 203°F (95°C) Cable defective. No cooling. Brakes may overheat at front axle.