Operator Interface Control Unit (OIC) 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 take. Many codes which appear may be corrected simply by cycling key switch or by following the solution on the CommandCenter™ page, then cycling key switch.

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

Diagnostic Trouble Code	System	Solution
OIC 000158.04	Electrical System	Cab control unit switched supply voltage low. Reduce electrical load or increase engine rpm to attempt vehicle recovery.
OIC 000168.04	Electrical System	Cab control unit unswitched supply voltage low. Reduce electrical load or increase engine rpm. Power down and check fuse. Restart engine to attempt vehicle recovery.
OIC 000628.12	Electrical System	Cab control unit in programming mode.
OIC 003033.14	Operator Controls	Brakes not depressed since tractor startup. Please depress brake pedal.