HUMMER 2010 Hummer H3 Base

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Repair and Diagnosis

Quick Lookups
- Common Specs & Procedures
  - Common Specs & Procedures
- DTC Index
  - Ordered Diagnostic Trouble Codes
- Electrical Component Locations
  - Component Locations - Door Component Views
  - Component Locations - Electrical Center Identification Views
  - Component Locations - Front Of Vehicle/Engine Compartment Component Views
  - Component Locations - Ground Views
  - Component Locations - Instrument Panel/Center Console Compartment Views
  - Component Locations - Luggage Compartment/Rear Of Vehicle Component Views
  - Component Locations - Master Electrical Component List
  - Component Locations - Passenger Compartment/Roof Component Views
  - Component Locations - Powertrain Component Views
  - Component Locations - Wheels/Vehicle Underbody Compartment Views
  - Electrical Component Locator
- Fluids
- Technical Bulletins
- Tire Fitment
- Wiring Diagrams
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Schematic And Routing Diagrams
  - Engine Controls And Fuel - 3.7L - Schematic And Routing Diagrams
  - System Wiring Diagrams
  - Using lemon2025'S System Wiring Diagrams
  - Wiring Systems And Power Management - Component Connector End Views - Index
  - Wiring Systems And Power Management - Component Connector End Views - 1 Through C
  - Wiring Systems And Power Management - Component Connector End Views - D Through E
  - Wiring Systems And Power Management - Component Connector End Views - F Through H
  - Wiring Systems And Power Management - Component Connector End Views - I Through O
  - Wiring Systems And Power Management - Component Connector End Views - P Through R
  - Wiring Systems And Power Management - Component Connector End Views - S
  - Wiring Systems And Power Management - Component Connector End Views - T Through Z
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X101 Through X374
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X410 Through X901
  - Wiring Systems And Power Management - Schematic And Routing Diagrams
Accessories & Equipment
- Anti-Theft Systems
  - Immobilizer
  - Remote Functions
    - Schematic and Routing Diagrams
    - Diagnostic Information and Procedures
      - Symptoms - Remote Functions
      - Garage Door Opener Inoperative
        Diagnostic Instructions
        Circuit/System Description
        Diagnostic Aids
        Reference Information
        Circuit/System Testing
        Repair Procedures
      - Keyless Entry System Inoperative
    - Repair Instructions
    - Description and Operation
  - Theft Deterrent
  - Vehicle Access
- Body Interior
  - Secondary And Configurable Customer Controls
- Collision/Avoidance
  - Object Detection
- Communication Devices
  - Data Communications
  - Programming And Setup
- Cruise Control Systems
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
- Drivers Assistance Systems - ADAS
  - Object Detection
- Entertainment Systems
  - Cellular, Entertainment, And Navigation
- Exterior Lights
  - Lighting
- Gauges & Instrument Panels
  - Displays And Gauges
  - Instrument Panel And Console Trim
- Headlights
  - Lighting
- Heated Glass/Defoggers
  - Fixed And MOVEABLE Windows
- Horns
  - Specifications
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
- Ignition Switch/Steering Lock
  - Immobilizer
  - Wiring Systems And Power Management - Diagnostic Information And Procedures
  - Wiring Systems And Power Management - Repair Instructions
- Infotainment
  - Cellular, Entertainment, And Navigation
- Interior/Exterior Trim
  - Bolted Exterior Body Panels And Closures
  - Exterior Trim
  - Floor Coverings And HEADLININGS
  - Instrument Panel And Console Trim
  - Interior Trim And Paneling
  - Luggage Rack And Roof Trim
  - Seat Hardware, Trim, And Upholstery
- Interior/Illumination Lights
  - Lighting
- Memory Modules
  - Secondary And Configurable Customer Controls
- Mirrors
  - Specifications
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
- Seats
  - Power Seats
  - Seat Hardware, Trim, And Upholstery
  - Seat Heating And Cooling
- Steering Column Switches
  - Secondary And Configurable Customer Controls
  - Steering Wheel And Column
- Warning Systems
  - Tire Pressure Monitoring
- Window Motors & Regulators
  - Fixed And MOVEABLE Windows
- Wiper/Washer Systems
  - Wipers And Washers
Body & Frame
- Body, Cab Control Systems
  - Secondary And Configurable Customer Controls
- Door Locks
  - Immobilizer
  - Remote Functions
  - Theft Deterrent
  - Vehicle Access
- Exterior Body Panels
  - Air/Wind Noise
  - Bumpers And Fascias
  - Plastic Panel Information And Repair
  - Squeaks And Rattles
  - Water Leaks
- Exterior/Interior Trim
  - Bolted Exterior Body Panels And Closures
  - Exterior Trim
  - Floor Coverings And HEADLININGS
  - Instrument Panel And Console Trim
  - Interior Trim And Paneling
  - Luggage Rack And Roof Trim
  - Seat Hardware, Trim, And Upholstery
- Frames, Subframes & Crossmembers
  - Frame And Underbody
- Ignition Switch/Steering Lock
  - Immobilizer
  - Wiring Systems And Power Management - Diagnostic Information And Procedures
  - Wiring Systems And Power Management - Repair Instructions
- Mirrors
  - Specifications
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
- Seats
  - Power Seats
  - Seat Hardware, Trim, And Upholstery
  - Seat Heating And Cooling
- Sun Roof/T-Top/Convertible Top
  - Sunroof
- Fixed And MOVEABLE Windows
  - Specifications
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
  - Special Tools and Equipment
Brakes
- Anti-Lock Brakes
  - Antilock Brake System With TCS And VSES
- Mechanical - Hydraulic
  - Disc Brakes
  - Hydraulic Brakes
- Parking Brake System
  - Park Brake
- Traction Control
  - Antilock Brake System With TCS And VSES
Drivelines & Axles
- Axle Shafts
  - Wheel Drive Shafts
- Differentials & Drive Axles
  - Front Drive Axle
  - Rear Drive Axle
- Driveshaft & Universal Joints
  - Propeller Shaft
Electrical
- Body Electrical
  - Component Locations - Door Component Views
  - Component Locations - Electrical Center Identification Views
  - Component Locations - Front Of Vehicle/Engine Compartment Component Views
  - Component Locations - Ground Views
  - Component Locations - Instrument Panel/Center Console Compartment Views
  - Component Locations - Luggage Compartment/Rear Of Vehicle Component Views
  - Component Locations - Master Electrical Component List
  - Component Locations - Passenger Compartment/Roof Component Views
  - Component Locations - Powertrain Component Views
  - Component Locations - Wheels/Vehicle Underbody Compartment Views
  - Power Outlets
  - Wiring Systems And Power Management - Component Connector End Views - Index
  - Wiring Systems And Power Management - Component Connector End Views - 1 Through C
  - Wiring Systems And Power Management - Component Connector End Views - D Through E
  - Wiring Systems And Power Management - Component Connector End Views - F Through H
  - Wiring Systems And Power Management - Component Connector End Views - I Through O
  - Wiring Systems And Power Management - Component Connector End Views - P Through R
  - Wiring Systems And Power Management - Component Connector End Views - S
  - Wiring Systems And Power Management - Component Connector End Views - T Through Z
  - Wiring Systems And Power Management - Description And Operation
  - Wiring Systems And Power Management - Diagnostic Information And Procedures
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X101 Through X374
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X410 Through X901
  - Wiring Systems And Power Management - Repair Instructions
  - Wiring Systems And Power Management - Schematic And Routing Diagrams
  - Wiring Systems And Power Management - Special Tools And Equipment
  - Wiring Systems And Power Management - Specifications
- Charging Systems
  - Battery, Charging System And Starting System
- Component Locations
  - Component Locations - Door Component Views
  - Component Locations - Electrical Center Identification Views
  - Component Locations - Front Of Vehicle/Engine Compartment Component Views
  - Component Locations - Ground Views
  - Component Locations - Instrument Panel/Center Console Compartment Views
  - Component Locations - Luggage Compartment/Rear Of Vehicle Component Views
  - Component Locations - Master Electrical Component List
  - Component Locations - Passenger Compartment/Roof Component Views
  - Component Locations - Powertrain Component Views
  - Component Locations - Wheels/Vehicle Underbody Compartment Views
  - Electrical Component Locator
- Gauges
  - Displays And Gauges
  - Instrument Panel And Console Trim
- Horns
  - Specifications
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
- Motors, Switches, Relays
  - Component Locations - Door Component Views
  - Component Locations - Electrical Center Identification Views
  - Component Locations - Front Of Vehicle/Engine Compartment Component Views
  - Component Locations - Ground Views
  - Component Locations - Instrument Panel/Center Console Compartment Views
  - Component Locations - Luggage Compartment/Rear Of Vehicle Component Views
  - Component Locations - Master Electrical Component List
  - Component Locations - Passenger Compartment/Roof Component Views
  - Component Locations - Powertrain Component Views
  - Component Locations - Wheels/Vehicle Underbody Compartment Views
  - Power Outlets
  - Wiring Systems And Power Management - Component Connector End Views - Index
  - Wiring Systems And Power Management - Component Connector End Views - 1 Through C
  - Wiring Systems And Power Management - Component Connector End Views - D Through E
  - Wiring Systems And Power Management - Component Connector End Views - F Through H
  - Wiring Systems And Power Management - Component Connector End Views - I Through O
  - Wiring Systems And Power Management - Component Connector End Views - P Through R
  - Wiring Systems And Power Management - Component Connector End Views - S
  - Wiring Systems And Power Management - Component Connector End Views - T Through Z
  - Wiring Systems And Power Management - Description And Operation
  - Wiring Systems And Power Management - Diagnostic Information And Procedures
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X101 Through X374
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X410 Through X901
  - Wiring Systems And Power Management - Repair Instructions
  - Wiring Systems And Power Management - Schematic And Routing Diagrams
  - Wiring Systems And Power Management - Special Tools And Equipment
  - Wiring Systems And Power Management - Specifications
- Starter
  - Battery, Charging System And Starting System
- Wiring Diagrams
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Schematic And Routing Diagrams
  - Engine Controls And Fuel - 3.7L - Schematic And Routing Diagrams
  - System Wiring Diagrams
  - Using lemon2025'S System Wiring Diagrams
  - Wiring Systems And Power Management - Component Connector End Views - Index
  - Wiring Systems And Power Management - Component Connector End Views - 1 Through C
  - Wiring Systems And Power Management - Component Connector End Views - D Through E
  - Wiring Systems And Power Management - Component Connector End Views - F Through H
  - Wiring Systems And Power Management - Component Connector End Views - I Through O
  - Wiring Systems And Power Management - Component Connector End Views - P Through R
  - Wiring Systems And Power Management - Component Connector End Views - S
  - Wiring Systems And Power Management - Component Connector End Views - T Through Z
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X101 Through X374
  - Wiring Systems And Power Management - Inline Harness Connector End Views - X410 Through X901
  - Wiring Systems And Power Management - Schematic And Routing Diagrams
Engine Mechanical
- Cooling System (Mechanical)
  - Engine Cooling
- Engine Exhaust
  - Specifications
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
  - Special Tools and Equipment
- Lubrication System
  - Maintenance And Lubrication
- Mechanical
  - Engine Mechanical - 3.7L - Component Locator
  - Engine Mechanical - 3.7L - Description And Operation
  - Engine Mechanical - 3.7L - Diagnostic Information And Procedures
  - Engine Mechanical - 3.7L - Repair Instructions - Off Vehicle (1 Of 3)
  - Engine Mechanical - 3.7L - Repair Instructions - Off Vehicle (2 Of 3)
  - Engine Mechanical - 3.7L - Repair Instructions - Off Vehicle (3 Of 3)
  - Engine Mechanical - 3.7L - Repair Instructions - On Vehicle
  - Engine Mechanical - 3.7L - Schematic And Routing Diagrams
  - Engine Mechanical - 3.7L - Special Tools And Equipment
  - Engine Mechanical - 3.7L - Specifications
- Starter
  - Battery, Charging System And Starting System
Engine Performance
- Emissions
  - Base Ignition Timing Specifications
  - Emission Applications
  - Emission Control Abbreviations
  - State Emission Standards - Diesel
  - State Emission Standards - Gas
- Specifications
  - Firing Order & Cylinder Identification
- System
  - Engine Controls And Fuel - 3.7L - Description And Operation
  - Engine Controls And Fuel - 3.7L - Diagnostic Code Index
  - Engine Controls And Fuel - 3.7L - DTC P0013 To DTC P0328
  - Engine Controls And Fuel - 3.7L - DTC P0335 To DTC P1381
  - Engine Controls And Fuel - 3.7L - DTC P1400 To DTC P2635
  - Engine Controls And Fuel - 3.7L - Repair Instructions
  - Engine Controls And Fuel - 3.7L - Schematic And Routing Diagrams
  - Engine Controls And Fuel - 3.7L - Special Tools And Equipment
  - Engine Controls And Fuel - 3.7L - Specifications
  - Engine Controls And Fuel - 3.7L - Symptom Troubleshooting And Diagnosis
- Testing & Diagnosis
  - Engine Controls And Fuel - 3.7L - Description And Operation
  - Engine Controls And Fuel - 3.7L - Diagnostic Code Index
  - Engine Controls And Fuel - 3.7L - DTC P0013 To DTC P0328
  - Engine Controls And Fuel - 3.7L - DTC P0335 To DTC P1381
  - Engine Controls And Fuel - 3.7L - DTC P1400 To DTC P2635
  - Engine Controls And Fuel - 3.7L - Repair Instructions
  - Engine Controls And Fuel - 3.7L - Schematic And Routing Diagrams
  - Engine Controls And Fuel - 3.7L - Special Tools And Equipment
  - Engine Controls And Fuel - 3.7L - Specifications
  - Engine Controls And Fuel - 3.7L - Symptom Troubleshooting And Diagnosis
General Information
- Abbreviations
  - Commonly Used Abbreviations - General Information
  - Emission Control Abbreviations
- Basic Trouble Shooting
  - Basic Trouble Shooting - General Information
  - Commonly Used Abbreviations - General Information
  - Emission Control Abbreviations
  - Engine Performance - Trouble Shooting - General Information
- Brakes
  - Anti-Lock Brake Safety Precautions - General Information
  - Map - Brake Systems
  - Map - Routine Inspection Reference Guide
- Check Lists
  - Symptom Check List Worksheet - General Information
- OBD-II Drive Cycles - 3.7L
  - Inspection/Maintenance Complete System Set Procedure
- Driveline/Axles
  - Drive Axle Noise Diagnosis - General Information
  - Gear Tooth Contact Patterns - General Information
  - Map - Drive Train & Transmission
  - Trouble Shooting - Clutches - General Information
- DTC Index
  - Ordered Diagnostic Trouble Codes
- Electrical
  - Map - Electrical Systems
  - Using lemon2025'S System Wiring Diagrams
- Engine
  - Engine Overhaul Procedures - General Information
  - General Cooling System Service - General Information
- Engine Performance
  - Electrostatic Discharge Warning - General Information
  - Engine Performance Diagnostic Routine Outline - General Information
  - Engine Performance Safety Precautions
  - Map - Engine Performance & Maintenance
  - Parasitic Load Explanation & Test Procedures - General Information
  - State Emission Standards - Diesel
  - State Emission Standards - Gas
  - Waveforms - Injector Pattern Tutorial - General Information
- Map - Exhaust Systems
  - Exhaust Systems
  - Reason Code Explanation
- Heating, Ventilation & A/C (HVAC)
  - Map - Heating, Ventilation, & Air Conditioning
- Hoist/Jack
  - General Information
- Identification
  - CANADIAN Model Cross-Reference
- Metric Conversions
  - Engine Displacement Conversion Table - ECAT
  - Metric Conversions
- OEM General Information
  - Dangers, Warnings, And Cautions
  - General Information
  - Vehicle Diagnostic Information - Diagnostic Information And Procedures
  - Vehicle Diagnostic Information - Specifications
  - Vibration Symptoms Diagnosis And Correction
- Reset Procedures
  - ATEQ TPMS Reset Procedure
  - BARTEC TPMS Reset Procedure
  - Maintenance And Lubrication
  - Maintenance Reminder Light (Reset Procedures)
  - Programming And Setup
  - Tire Pressure Monitor Systems
- RPO Codes
  - General Information
- Specifications Index
  - Common Specs & Procedures
- Steering
  - Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
  - Wheel Alignment Theory & Operation - General Information
- Traction Control Disable Procedures
  - Traction Control Disable
- Trouble Shooting - Manual Transmission - General Information
  - * Please Read This First *
  - Introduction
Heating, Ventilation & A/C (HVAC)
- General Servicing
  - Cabin Air Filter (Special Applications) - General Information
- HVAC Control Systems
  - Heating, Ventilation, And Air Conditioning
  - HVAC - Manual
Maintenance
- Procedures
  - Maintenance And Lubrication
  - Maintenance Reminder Light (Reset Procedures)
Restraints
- Air Bag, SRS
  - Supplemental Inflatable Restraints
- Restraints Control Systems
  - Seat Belts
- Seat Belts
  - Specifications
  - Schematic and Routing Diagrams
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
Steering
- Manual Steering
  - Power Steering
- Power Steering
  - Specifications
  - Diagnostic Information and Procedures
  - Repair Instructions
  - Description and Operation
  - Special Tools and Equipment
- Steering Column
  - Steering Wheel And Column
Suspension
- Front Suspension
  - Front Suspension
  - Suspension General Diagnosis
- Rear Suspension
  - Rear Suspension
  - Suspension General Diagnosis
- Wheel Alignment
  - Specifications
  - Repair Instructions
  - Description and Operation
  - Special Tools and Equipment
- Wheels & Tire System
  - Tire Pressure Monitoring
  - Tires And Wheels
Transmission
- Automatic Trans
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Component Locator
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Description And Operation
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Diagnostic Code Index
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - DTC P0218 To DTC P2771
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Repair Instructions - Off Vehicle
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Repair Instructions - On Vehicle
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Schematic And Routing Diagrams
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Special Tools And Equipment
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Specifications
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Symptom Troubleshooting And Diagnosis
  - Shift Lock Control
- Hydraulic Diagrams
  - Automatic Transmission - 4L60-E/4L65-E/4L70-E - Description And Operation
- Transfer Case - BW 4493/4494
  - Specifications
  - Schematic and Routing Diagrams
  - Component Locator
  - Diagnostic Information and Procedures
  - Repair Instructions - On Vehicle
  - Repair Instructions - Off Vehicle
  - Description and Operation
  - Special Tools and Equipment

Manual:HUMMER Hummer H3 Base 2010Page:20860 / 37523

Diagnostic Aids — 2010 Hummer H3 Base, Automatic Service Manual

Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

The fuel trim cylinder balance diagnostic is very sensitive to heated oxygen sensor (HO2S) design. A non-OE sensor or an incorrect part number may set a false DTC.
Monitoring the misfire current counters, or misfire graph, may help to isolate the cylinder that is causing the condition.