John Deere fault codes & repair guides
All 3,995 codes· 50 per page · page 9 of 80
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 158.17 | RLC | Switched Supply Voltage Low | Full repair manual for code 158.17, RLC |
| 000158.18 | — | Low Voltage Detected On HV1 Hydraulic Control Module | Full repair manual for code 000158.18 |
| 000158.18 | — | Voltage To Module Is Low 11 Volts | Full repair manual for code 000158.18 |
| 000158.18 | — | Voltage To Cab Roof Module (RLC) Below 11 Volts With Engine Running | Full repair manual for code 000158.18 |
| 158.18 | FCC | Instrument Unit, Supply Voltage (ELX) Too Low | Full repair manual for code 158.18, FCC |
| 158.18 | HV1 (Hydraulic Control Module 1) | Switched Supply Voltage Low | Full repair manual for code 158.18, HV1 (Hydraulic Control Module 1) |
| 158.18 | Roof Lighting Control Unit (RLC) | Switched supply voltage (ELX) to the module has dropped below 11.2 volts | Full repair manual for code 158.18, Roof Lighting Control Unit (RLC) |
| 161 | TCU (Transmission Control Unit) / Transmission Module IVT (PTA) | Transmission Input Speed Too High | Full repair manual for code 161, TCU (Transmission Control Unit) / Transmission Module IVT (PTA) |
| 000161.00 | — | Transmission Input Speed Too High | Full repair manual for code 000161.00 |
| 161.02 | PTA / TCU | Transmission Input Speed Issue | Full repair manual for code 161.02, PTA / TCU |
| 161.03 | Transmission Control Unit (TCU) / Transmission Module IVT (PTA) | Transmission Input Speed Sensor High Voltage | Full repair manual for code 161.03, Transmission Control Unit (TCU) / Transmission Module IVT (PTA) |
| 161.04 | PTA / TCU | Transmission Input Speed Sensor Low Voltage | Full repair manual for code 161.04, PTA / TCU |
| 000161.11 | — | Transmission Input Speed Issue | Full repair manual for code 000161.11 |
| 161.11 | PTA / TCU | Sensor for Transmission Input Speed, Signal does Not Match Engine Speed | Full repair manual for code 161.11, PTA / TCU |
| 000162.02 | — | Main Control Module Notes Issue With Signal Voltage From Transmission Hi/Low Switch | Full repair manual for code 000162.02 |
| 162.02 | PTR (Power Train Reverser) | High/Low Switch Circuit Conflict | Full repair manual for code 162.02, PTR (Power Train Reverser) |
| 000162.31 | — | Main Control Module Notes Issue With Signal Voltage From Transmission Hi/Low Switch | Full repair manual for code 000162.31 |
| 162.31 | PTR | High, Low Switch Stuck On | Full repair manual for code 162.31, PTR |
| 000166.14 | — | Engine Is In Derate Due To Vehicle Identification Number Mismatch With Cab Module | Full repair manual for code 000166.14 |
| 166.14 | EIC (Engine Interface Control Unit) | EIC Control Unit Fault | Full repair manual for code 166.14, EIC (Engine Interface Control Unit) |
| 000167.04 | — | Dash Module Has Noted A Low Battery/Alternator Voltage | Full repair manual for code 000167.04 |
| 167.04 | ICC | Alternator Voltage Below Normal / System Voltage Circuit Fault | Full repair manual for code 167.04, ICC |
| BIF000167.16 | BIF | D+ Voltage Is High (Engine Running) | Full repair manual for code BIF000167.16, BIF |
| BIF000167.17 | BIF | D+ voltage too low at engine speed over 1500 rpm | Full repair manual for code BIF000167.17, BIF |
| BIF000167.18 | BIF | D+ Voltage Too Low (Engine Speed Up to 1500 RPM) | Full repair manual for code BIF000167.18, BIF |
| 168 | PTA | Supply Power Valid but Above Normal Operational Range - Most Severe Level | Full repair manual for code 168, PTA |
| 000168.00 | — | High Supply Voltage Transmission Module IVT (PTA) | Full repair manual for code 000168.00 |
| 000168.00 | — | Battery Voltage Above 18V | Full repair manual for code 000168.00 |
| 000168.01 | — | Low Battery Voltage At Auto Steering Module (XMC) | Full repair manual for code 000168.01 |
| 000168.01 | — | Low Supply Voltage Transmission Module IVT (PTA) | Full repair manual for code 000168.01 |
| 000168.01 | — | Low Voltage to Module | Full repair manual for code 000168.01 |
| 000168.01 | — | Low Battery Voltage At Engine Module Below 9 Volts (ECU) | Full repair manual for code 000168.01 |
| ECU000168.01 | ECU | Battery Voltage Low | Full repair manual for code ECU000168.01, ECU |
| 168.01 | Engine Control Unit (ECU) | Low Battery Voltage At Engine Module Below 9 Volts | Full repair manual for code 168.01, Engine Control Unit (ECU) |
| 168.01 | PTA | Transmission Control Unit (AutoPowr/IVT), Supply Voltage (BAT) Too Low. | Full repair manual for code 168.01, PTA |
| 168.01 | PTQ | Control Software, Supply Voltage (BAT) Too Low | Full repair manual for code 168.01, PTQ |
| 168.01 | Rear Chassis Control Unit | Control Software, Supply Voltage (BAT) Too Low | Full repair manual for code 168.01, Rear Chassis Control Unit |
| 168.01 | XMC | Steering Control Unit (AutoTrac™), Supply Voltage (BAT) Too Low | Full repair manual for code 168.01, XMC |
| 000168.02 | — | Issue With The IVT Module Supply Voltage | Full repair manual for code 000168.02 |
| 168.02 | Transmission Module IVT (PTA) / Transmission Control Unit (TCU) | Internal Transmission Power Supply (VPS) / (VPS1), Incorrect | Full repair manual for code 168.02, Transmission Module IVT (PTA) / Transmission Control Unit (TCU) |
| 000168.03 | — | Voltage To Module Over 16 Volts Rear Chassis | Full repair manual for code 000168.03 |
| 000168.03 | — | Batteries and Alternator Fault | Full repair manual for code 000168.03 |
| 000168.03 | — | Voltage to Module Exceeds 16 Volts | Full repair manual for code 000168.03 |
| 168.03 | Armrest Interface Control Unit (AIC) or Cab Control Unit (CAB) | Unswitched Supply Voltage High | Full repair manual for code 168.03, Armrest Interface Control Unit (AIC) or Cab Control Unit (CAB) |
| 168.03 | Cab Suspension Controller (CSC) or Radio/Cooling Regulation Unit (CRU) | Supply Voltage Too High | Full repair manual for code 168.03, Cab Suspension Controller (CSC) or Radio/Cooling Regulation Unit (CRU) |
| 168.03 | Front Chassis Module (PTF) | Supply Voltage Too High | Full repair manual for code 168.03, Front Chassis Module (PTF) |
| ITC000168.03 | ITC | Control Unit Unswitched Supply Voltage High | Full repair manual for code ITC000168.03, ITC |
| SSU000168.03 | SSU | Continuous Supply Voltage Problem | Full repair manual for code SSU000168.03, SSU |
| 000168.04 | — | Module Voltage Low in Direct Drive Range Module (RPM) | Full repair manual for code 000168.04 |
| 000168.04 | — | Low Voltage to Module in Main Control Module | Full repair manual for code 000168.04 |
