Roof Lighting Control Unit (RLC) 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.

Roof Lighting Control Unit (RLC) Diagnostic Trouble Codes
Diagnostic Trouble Code	System	Solution
RLC 000158.01	Electrical System	Roof control unit switched supply voltage low. Reduce electrical load or increase engine RPM to attempt vehicle recovery.
RLC 000158.18	Electrical System	Roof control unit switched supply voltage low. Reduce electrical load or increase engine RPM to attempt vehicle recovery.
RLC 002352.05	Lighting System	Low-beam headlight circuit fault. Check bulb.
RLC 002358.05	Lighting System	High-beam headlight circuit fault. Check bulb.
RLC 002362.05	Lighting System	Roof worklight circuit fault. Check bulb.
RLC 002364.05	Lighting System	Beltline worklight circuit fault. Check bulb.
RLC 002366.05	Lighting System	Roof worklight circuit fault. Check bulb.
RLC 002368.05	Lighting System	Left turn signal circuit fault. Check bulb.
RLC 002370.05	Lighting System	Right turn signal circuit fault. Check bulb.
RLC 002382.05	Lighting System	Clearance light circuit fault. Check bulb.
RLC 002386.05	Lighting System	Beacon light circuit fault. Check bulb.
RLC 002390.05	Lighting System	License plate light circuit fault. Check bulb.
RLC 002396.05	Lighting System	Roof worklight circuit fault. Check bulb.
RLC 002398.05	Lighting System	Roof worklight circuit fault. Check bulb.
RLC 002407.05	Lighting System	Roof worklight circuit fault. Check bulb.
RLC 002598.05	Lighting System	Roof worklight circuit fault. Check bulb.
RLC 520273.05	Lighting System	Courtesy light circuit fault. Check bulb.
RLC 524259.00	Electrical System	Roof control unit temperature critical.  Turn off vehicle and allow control unit to cool.  Restart engine to attempt vehicle recovery.
RLC 524259.15	Electrical System	Roof control unit temperature above normal. Reduce electrical load.
RLC 524259.16	Electrical System	Roof control unit temperature high. Reduce electrical load.