TM 10-3930-675-10 0020 00-17 ERROR CODES - CONTINUED 0020 00 Table 4. Error Codes - Continued. ERROR CODE DISPLAY LAYOUT DRIVER ACTION ERROR CODE EXPLANATION VEHICLE LIMITATIONS 313 314 315 316 Stop Vehicle Abort mission. Notify maintenance. Stop Vehicle Immediately Deviation between two potenti- ometer  tracks,  but  both  inside tolerance range Wheel 1. Wheel 2. Wheel 3. Wheel 4. Stop vehicle by switching to neutral. Steering system will operate but is not redundant. 317 318 319 320 Stop Vehicle Check wheel for blockage. If blocked, remove blockage and press RESET. If not blocked, notify maintenance. Stop Vehicle Immediately Steering deviation between set point and actual value (tracking error) Wheel 1. Wheel 2. Wheel 3. Wheel 4. Stop vehicle by switching to neutral. Steering remains active and tries to close up to set point. System will be active as soon as deviating wheel has closed up. 321 322 323 324 Stop Vehicle Notify maintenance. Stop Vehicle Immediately Wheel  alinement  values  out  of range Wheel 1. Wheel 2. Wheel 3. Wheel 4. This error prohibits driving after steering calibration if calibration was not successful or calibration values are out of range. 325 326 327 328 Stop Vehicle Notify maintenance. Stop Vehicle Immediately Break  in  cable  to  proportional valve Wheel 1. Wheel 2. Wheel 3. Wheel 4. Stop vehicle by switching to neutral. Steering computer cannot control wheel with broken cable. Faulty wheel has to be alined by manual operation of valve.