Steering System Control Units (XMC and XSC) Diagnostic Trouble Codes

Although the diagnostic codes listed below are not a complete list of the diagnostic trouble codes, they do reflect codes which may be observed while operating the tractor and have corrective action that the operator can correct. Many codes which appear may be corrected simply by cycling key switch or by following the solution on the CommandCenter™ page, then cycling tractor power.

If corrective action cannot be taken after cycling power to the tractor or if there are any questions, contact your John Deere™ dealer.

Steering System Control Unit (XMC) Diagnostic Trouble Codes
Diagnostic Trouble Code	System	Solution
XMC 000168.01	Electrical System	Supply voltage low. Reduce electrical load or increase engine RPM. Power down and check fuse. Restart engine to attempt vehicle recovery.
XMC 001058.00	Brake System	Trailer brake pressure high. Trailer brakes are disabled.
XMC 522279.07	Brake System	Secondary brake valve stuck open. Secondary brakes are disabled. Restart engine to attempt vehicle recovery.
XMC 523844.07	Brake System	Front brake pressure sensor fault. Front brakes are disabled. Restart engine to attempt vehicle recovery.
Steering System Control Unit (XSC) Diagnostic Trouble Codes
XSC 001044.14	Steering/Brake System	Limit backup pump use, if possible. Continuous operation has been detected, which may eventually result in a pump failure.
XSC 001058.03	Brake System	Trailer brake pressure sensor circuit fault. Trailer brakes are disabled.
XSC 001058.04	Brake System	Trailer brake pressure sensor circuit fault. Trailer brakes are disabled.
XSC 001093.03	Brake System	Left rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001093.04	Brake System	Left rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001093.15	Brake System	Left rear brake pressure sensor fault. Front brakes are disabled.
XSC 001094.03	Brake System	Right rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001094.04	Brake System	Right rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001094.15	Brake System	Right rear brake pressure sensor fault. Front brakes are disabled.
XSC 001095.03	Brake System	Left rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001095.04	Brake System	Left rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001096.03	Brake System	Right rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001096.04	Brake System	Right rear brake pressure sensor circuit fault. Front brakes are disabled.
XSC 001504.14	Steering System	Operator out of seat. Guidance deactivated. Return to seated position.
XSC 001504.31	Steering System	Operator out of seat. Return to seated position.
XSC 004085.07	Brake System	Trailer brake shutoff valve stuck open. Trailer brakes are disabled. Restart engine to attempt vehicle recovery.
XSC 522279.07	Brake System	Secondary brake shutoff valve stuck open. Secondary brakes are disabled. Restart engine to attempt vehicle recovery.
XSC 522279.13	Brake System	Secondary brake valve not calibrated. Secondary brakes are disabled.
XSC 522280.03	Brake System	Secondary brake pressure sensor circuit fault. Secondary brakes are disabled.
XSC 522280.04	Brake System	Secondary brake pressure sensor circuit fault. Secondary brakes are disabled.
XSC 522390.09	Steering System	Guidance deactivated. Return to Park and verify implement connections to attempt vehicle recovery.
XSC 522390.11	Steering System	Full stop commanded. Guidance deactivated.
XSC 522789.14	Steering/Brake System	Hydraulic oil is too cold. Warm oil and try again.
XSC 523216.04	Electrical System	Alternator voltage low. Power down and check fuse.
XSC 523217.04	Electrical System	Valve power supply voltage low. Power down and check fuse.
XSC 523218.04	Electrical System	Valve power supply voltage low. Power down and check fuse.
XSC 523219.04	Electrical System	Valve power supply voltage low. Power down and check fuse.
XSC 523839.14	Brake System	Secondary brake lever engaged during startup. Allow secondary brake lever to return to off position.
XSC 523840.03	Brake System	Front brake pressure sensor circuit fault. Front brakes disabled.
XSC 523840.04	Brake System	Front brake pressure sensor circuit fault. Front brakes disabled.
XSC 523844.07	Brake System	Front brake shutoff valve stuck open. Front brakes are disabled. Restart engine to attempt vehicle recovery.
XSC 524169.14	Operator Controls	Brakes not depressed since tractor startup. Please depress brake pedal.