Part of the John Deere Repair Manuals.
Chasing electrical gremlins across your John Deere 8110, 8210, 8310, or 8410 Tractor just got easier with this 466-page factory John Deere 8110 Diagnostic Manual PDF (OEM #TM1796). Inside, you get a massive breakdown of CCU, PCU, and SCU code diagnostics, plus complete sensor testing procedures and calibration steps. Wiring diagrams and hydraulic schematics are referenced by document number (e.g., 245-ACU-300, 270-25-003) for further lookup as external documents. Verify your engine oil pressure gauge sensor voltage reads 4.5V at low pressure and 0.5V at high pressure, then confirm the fuel level sensor hits 4.8V when full. Stop blindly swapping sensors and expensive modules. Download this bookmarked file right to your tablet, search for your specific fault code, and get the machine back to work.
What's Inside This John Deere 8110, 8210, 8310, 8410 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2-4 | Foreword |
| Safety | 5-18 | General, Group 05, Recognize Safety Information, Prevent Machine Runaway, Handle Fluids Safely, Avoid Fires, Prevent Battery Explosions |
| Acu Code Diagnostics | 19-62 | Group Acu, Acu 120, SCV No 2 Control Switch Voltage, Acu 121, SCV No 2 Control Switch Status, Acu 130, SCV No 3 Control Switch Voltage |
| Ccu Code Diagnostics | 63-158 | Specifications, Ccu 001, Fuel Level Sensor Circuit (Service Code Diagnosis), Ccu 005, Engine Oil Pressure Sensor Circuit (Service Code Diagnosis), Ccu 007 |
| Hcu Code Diagnostics | 159-184 | Specifications, Hcu 022, Battery Voltage Out of Range (Service Code Diagnosis, Voltage Check), Hcu 027, Calibration Not Successful (Service Code Diagnosis, Check for Related Codes) |
| Icu Code Diagnostics | 185-192 | Specifications, Icu 094, Vehicle Monitor Touch Switch Stuck (Service Code Diagnosis, Recall Codes), Icu 095, Not Receiving Ccd Data (Service Code Diagnosis, Ccd Network Diagnosis) |
| Pcu Code Diagnostics | 193-276 | Specifications, Pcu 005, Fuel Flow Signal From ECU Missing (Service Code Diagnosis, Ccu 056 Check, ECU/ Ccu Check), Pcu 006 |
| Scu Code Diagnostics | 277-302 | Specifications, Scu 022, Battery Voltage Out of Range (Service Code Diagnosis, Voltage Check), Scu 027, Calibration Not Successful (Service Code Diagnosis, Check for Related Codes) |
| SCo Code Diagnostics | 303-320 | Specifications, SCo 022, Battery Voltage Out of Range (Service Code Diagnosis, Voltage Check), SCo 027, Calibration Not Successful (Service Code Diagnosis, Check for Related Codes) |
| Sup Code Diagnostics | 321-327 | Sup 010, Communication From Scu Missing (Service Code Diagnosis, Ccd Network Diagnosis), Sup 011, Communication From SCo Missing (Service Code Diagnosis |
| Electrical | 328-365 | Electrical System Diagnosis, Charging & Lighting Circuits, Wiring Harness & Component Diagnosis, Observable Symptom Diagnosis |
| Hitch | 366-375 | 3-Point Hitch Diagnosis, Position & Draft Control, Hitch Raise/Lower Symptoms, Observable Symptom Diagnosis |
| Heating, Ventilation and Air Conditioning (Standard) | 376-387 | Air Conditioning & Heater Diagnosis, Blower Circuit, ClimaTrak Controls, Observable Symptom Diagnosis |
| Heating, Ventilation and Air Conditioning - ClimaTrak™ (Atc) | 388-397 | Specifications, ClimaTrak™ Trouble Light Flashing (Observable Symptom Diagnosis, Access Light Codes), Diagnostic Trouble Lamp Does Not Light |
| Operator Station | 398-435 | Dust in Cab (Observable Symptom Diagnosis, Preliminary Operational Checks, Key Switch/ELX Relay Check, Pressurizer Blower Motor Run Test, Fuse F18 Check, Key Switch Check, Elx Relay Check, Circulation Blower Motor Check, Blower Motor Circuit Relay Check, Blower Motor Switch Check, Circulator Blower Harness Check, Pressurizer Blower Motor Check, Pressurizer Blower Motor Relay Check) |
| Power Take-Off | 436-443 | PTO Engagement Diagnosis, Rear PTO, PTO Clutch, Observable Symptom Diagnosis |
| Selective Control Valve | 444-453 | Specifications, Hose Ejects From SCV Coupler (Observable Symptom Diagnosis, Check for Trapped Pressure, Inspect Drain, Inspect Coupler) |
| Steering | 454-466 | Steering System Diagnosis, Power Steering Circuit, Hard/Erratic Steering, Observable Symptom Diagnosis |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine Oil Pressure Gauge Sensor Voltage (high pressure) | 0.5 | p. 63 |
| Engine Oil Pressure Gauge Sensor Voltage (low pressure) | 4.5 | p. 63 |
| Fuel Level Sensor Voltage (empty) | 0.0 | p. 64 |
| Fuel Level Sensor Voltage (full) | 4.8 | p. 59 |
| Engine Coolant Temperature Sensor Voltage (hot) | 0.5 | p. 63 |
| Engine Coolant Temperature Sensor Voltage (cold) | 4.5 | p. 63 |
| Fuse F14 Status Fuse F14 Good Installed | XX1 | p. 63 |
| Fuse F14 Status Fuse F14 Blown\ Removed | XX0 | p. 63 |
| Engine Oil Pressure Gauge Minimum No Load (Idle) Pressure | 100 kPa (1.0 bar) (15 psi) | p. 65 |
| Engine Oil Pressure Gauge Maximum Full Load (Rated Speed) Pressure | 450 kPa (4.5 bar) (65 psi) | p. 65 |
| Alternator Output Voltage-Specification Regulated Voltage | 13.2-14.2 volts | p. 103 |
| Transmission-Hydraulic Filter change | 750 hours | p. 120 |



















