John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 57 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 521410.02 | AIC | Armrest Multi-Function Lever Module Circuit Fault / Circuit Malfunction in Armrest Multi-Function Lever | Full repair manual for code 521410.02, AIC |
| 521411.02 | AIC | Armrest Multi-Function Lever Module Circuit Fault (Multi-Function Lever button 3 circuit fault) | Full repair manual for code 521411.02, AIC |
| 521412.02 | AIC | Armrest Multi-Function Lever Module Circuit Fault | Full repair manual for code 521412.02, AIC |
| 521413.02 | AIC | Armrest Multi-Function Lever Module Circuit Fault | Full repair manual for code 521413.02, AIC |
| 521421.02 | AIC (Armrest Interface Control) | Armrest Hitch Controls Module Circuit Fault | Full repair manual for code 521421.02, AIC (Armrest Interface Control) |
| 521421.09 | HCC | Rear Hitch Encoder Lower Message Missing | Full repair manual for code 521421.09, HCC |
| 521421.19 | HCC (Hitch Control Center) | Rear Hitch Encoder Lower Fault / Rear Hitch Encoder Increase Fault | Full repair manual for code 521421.19, HCC (Hitch Control Center) |
| 521421.31 | HCC | Rear Hitch Encoder Lower Data Fault / Rear Hitch Encoder Increase Data Fault | Full repair manual for code 521421.31, HCC |
| 521422.02 | AIC | Armrest Hitch Controls Module Circuit Fault / LIN Bus Communication Fault in Hitch Controls | Full repair manual for code 521422.02, AIC |
| 521422.09 | HCC (Hitch Control Center) | Rear Hitch Encoder Raise Message Missing | Full repair manual for code 521422.09, HCC (Hitch Control Center) |
| 521422.19 | HCC | Rear Hitch Encoder Raise Fault | Full repair manual for code 521422.19, HCC |
| 521422.31 | HCC | Rear Hitch Encoder Raise Data Fault | Full repair manual for code 521422.31, HCC |
| 521423.08 | OIC | Left Brake Pedal Position, Fault (XMB/XMC Messages Missing) | Full repair manual for code 521423.08, OIC |
| 521423.09 | OIC | Left Brake Pedal Position, High Error Rate (XMB/XMC Messages Missing) | Full repair manual for code 521423.09, OIC |
| 521426.31 | — | Incorrect Voltage Detected from Lower Switch | Full repair manual for code 521426.31 |
| 521427.31 | — | Incorrect Voltage Detected from Raise Switch | Full repair manual for code 521427.31 |
| 521428.03 | — | Lower Solenoid Short to High | Full repair manual for code 521428.03 |
| 521428.04 | — | Lower Solenoid Short to Ground | Full repair manual for code 521428.04 |
| 521429.03 | — | Raise Solenoid Short to High | Full repair manual for code 521429.03 |
| 521429.04 | — | Raise Solenoid Short to Ground | Full repair manual for code 521429.04 |
| 521465.09 | AIC | Armrest Engine Speed Control Module Message Missing | Full repair manual for code 521465.09, AIC |
| 521468.14 | SCO | SCV XIV (14) Actuator Not Receiving SCO Message | Full repair manual for code 521468.14, SCO |
| 521469.14 | SCO / SCC | SCV XV Actuator Not Receiving SCO Message | Full repair manual for code 521469.14, SCO / SCC |
| 521475.02 | AIC (Armrest Interface Control Unit) | Armrest Rear Hitch Setup Controls Module Circuit Fault | Full repair manual for code 521475.02, AIC (Armrest Interface Control Unit) |
| 521475.09 | HCC | Rear Hitch Load Depth Encoder Increase Message Missing | Full repair manual for code 521475.09, HCC |
| 521475.19 | HCC | Rear Hitch Load Depth Encoder Increase Fault | Full repair manual for code 521475.19, HCC |
| 521475.31 | HCC | Rear Hitch Load Depth Encoder Increase Data Fault | Full repair manual for code 521475.31, HCC |
| 521476.02 | AIC (Armrest Interface Control) | Armrest Rear Hitch Setup Controls Module Circuit Fault | Full repair manual for code 521476.02, AIC (Armrest Interface Control) |
| 521476.09 | HCC (Hitch Control Controller) | Rear Hitch Height Limit Encoder Increase Message Missing | Full repair manual for code 521476.09, HCC (Hitch Control Controller) |
| 521476.19 | HCC (Hitch Control Controller / Rear Chassis Module) | Rear Hitch Height Limit Encoder Increase Fault | Full repair manual for code 521476.19, HCC (Hitch Control Controller / Rear Chassis Module) |
| 521476.31 | HCC (Hitch Control Controller / Rear Chassis Module) | Rear Hitch Height Limit Encoder Increase Data Fault | Full repair manual for code 521476.31, HCC (Hitch Control Controller / Rear Chassis Module) |
| 521480.02 | AIC (Armrest Interface Control Unit) | Armrest Rear Hitch Setup Controls Module Circuit Fault | Full repair manual for code 521480.02, AIC (Armrest Interface Control Unit) |
| 521480.09 | Rear Chassis Module (HCC) | Rear Hitch Drop Rate Encoder Increase Message Missing | Full repair manual for code 521480.09, Rear Chassis Module (HCC) |
| 521480.19 | HCC (Hitch Control Center / Rear Chassis Module) | Rear Hitch Drop Rate Encoder Increase Fault | Full repair manual for code 521480.19, HCC (Hitch Control Center / Rear Chassis Module) |
| 521480.31 | HCC (Hitch Control Controller / Rear Chassis Module) | Rear Hitch Drop Rate Encoder Increase Data Fault | Full repair manual for code 521480.31, HCC (Hitch Control Controller / Rear Chassis Module) |
| 521533.03 | VLC (Vehicle Load Center Control Unit) | Front Outer Hood Flood Lights Left Circuit Voltage High | Full repair manual for code 521533.03, VLC (Vehicle Load Center Control Unit) |
| 521533.05 | VLC | Front Outer Hood Flood Lights Left Circuit Current Low | Full repair manual for code 521533.05, VLC |
| 521533.06 | VLC | Front Outer Hood Flood Lights Left Circuit Current High | Full repair manual for code 521533.06, VLC |
| 521535.03 | RLC (Roof Lighting Controller / Cab Roof Module) | Mid Body Flood Light Left Voltage High | Full repair manual for code 521535.03, RLC (Roof Lighting Controller / Cab Roof Module) |
| 521535.05 | RLC | Mid Body Flood Light Left Current Low | Full repair manual for code 521535.05, RLC |
| 521535.06 | RLC (Roof Lighting Controller / Cab Roof Module) | Mid Body Flood Light Left Current High | Full repair manual for code 521535.06, RLC (Roof Lighting Controller / Cab Roof Module) |
| 521536.03 | RLC | High Voltage at Grab Rail Light | Full repair manual for code 521536.03, RLC |
| 521536.05 | Cab Roof Module (RLC) | Left Worklight on Cab Frame or Left Xenon (HID) Worklight on Cab Frame, Current Too Low | Full repair manual for code 521536.05, Cab Roof Module (RLC) |
| 521536.06 | RLC (Roof Lighting Control Unit) | Left Worklight on Cab Frame or Left Xenon (HID) Worklight on Cab Frame, Current Too High | Full repair manual for code 521536.06, RLC (Roof Lighting Control Unit) |
| 521537.03 | RLC (Roof Lighting Control Unit) | Front Roof Warning (NA Only) or Front Corner Roof Light (Eur Only) Left Voltage High | Full repair manual for code 521537.03, RLC (Roof Lighting Control Unit) |
| 521537.05 | RLC (Roof Lighting Control) | Front Roof Warning (NA Only) or Front Corner Roof Light (Eur Only) Left Current Low | Full repair manual for code 521537.05, RLC (Roof Lighting Control) |
| 521537.06 | RLC (Roof Lighting Control Unit) | Front Roof Warning (North America Only) or Front Corner Roof Light (Europe Only) Left Current High | Full repair manual for code 521537.06, RLC (Roof Lighting Control Unit) |
| 521538.03 | RLC (Roof Lighting Control Unit) | Left Middle Worklight on Front of Roof or Left Xenon (HID) Worklight on Front of Roof, Voltage Too High | Full repair manual for code 521538.03, RLC (Roof Lighting Control Unit) |
| 521538.05 | RLC (Roof Lighting Controller / Cab Roof Module) | Left Middle Worklight on Front of Roof or Left Xenon (HID) Worklight on Front of Roof, Current Too Low | Full repair manual for code 521538.05, RLC (Roof Lighting Controller / Cab Roof Module) |
| 521538.06 | RLC | Left Middle Worklight on Front of Roof or Left Xenon (HID) Worklight on Front of Roof, Current Too High. | Full repair manual for code 521538.06, RLC |
