TM 10-3930-675-24-1
INPUT AND OUTPUT SIGNALS FOR STEERING ECU (792) TROUBLESHOOTING
THIS WORK PACKAGE COVERS
Error Code 350 - Right Front Wheel Valve Solenoid
Error Code 409 - Locked Twistlock Control Lamp,
Error
Short Circuit Failure
Error Code 410 - alignment Control Lamp, Short Circuit
Error Code 351 - Right Rear Wheel Valve Solenoid
Failure
Error
Error Code 412 - Auto Lube Pump Control, Short Cir-
Error Code 352 - Left Rear Wheel Valve Solenoid Error
cuit Failure - USMC Only
Error Code 353 - Left Front Wheel Valve Solenoid Error
Error Code 413 - Boom Folding Supply Valve, Short
Error Code 354 - Right Front Wheel Valve Solenoid
Circuit Failure
Error
Error Code 415 - Drag Restriction, Short Circuit Failure
Error Code 355 - Right Rear Wheel Valve Solenoid
Error Code 416 - Steering Pressure Switch, Circuit Input
Error
Error
Error Code 356 - Left Rear Wheel Valve Solenoid Error
Error Code 418 - 2WD Steering Selection Switch, Cir-
Error Code 357 - Right Front Wheel Valve Solenoid
cuit Input Error
Error
Error Code 419 - 4WD Steering Selection Switch, Cir-
Error Code 399 - EEPROM Paramater Error in ECU
cuit Input Error
(792)
Error Code 420 - Crab Steering Selection Switch, Cir-
cuit Input Error
Error Code 401 - Transmission Neutral Signal from
Steering ECU (792) Short Circuit Failure
Error Code 422 - Cab in Transport Proximity Switch,
Circuit Input Error
Error Code 404 - 2WD Steering Control Lamp, Short
Circuit Failure
Error Code 423 - Ether Start Kit Switch, Circuit Failure
Error Code 405 - 4WD Steering Control Lamp, Short
Error Code 427 - Tophandler Work Light Switch, Cir-
Circuit Failure
cuit Input Error
Error Code 406 - Crab Steering Control Lamp, Short
Error Code 440 - Steering Wheel Sensor, Power Supply
Circuit Failure
Error (RESET or USMC Only)
Error Code 450 - Temperature Inside Steering ECU
Error Code 408 - Unlocked Twistlock Control Lamp,
(792) Above Critical Threshold [184F (85C)]
Short Circuit Failure
INITIAL SETUP
References - Continued
References
ECS Steering (A34651.0200) (WP 0048 00-16)
TM 10-3930-675-10
ECS Hydraulics (A34654.0200) (WP 0048 00-29)
Current Supply (A34738.0200) (WP 0048 00-31)
ECS Attachment (A34652.0200) (WP 0048 00-23)
Auxiliary Pump (A34746.0200) (WP 0048 00-47)
ECS Electrical Servo (A34648.0200) (WP 0048 00-
5)
NOTE
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations that
locate critical components.