2021 Honda Fit Service and Repair Manual

This 2021 Honda Fit Service and Repair Manual Covers

Engine & Drivetrain

Petrol Engine

• 1.3L DOHC i-VTEC Inline-4 (L13B)
• 1.5L DOHC i-VTEC Inline-4 (L15B)

Hybrid Powertrain (e:HEV)

• 1.5L Atkinson-Cycle DOHC Inline-4 (LEB-H5)
• Dual Electric Motor Hybrid System
• Lithium-Ion High-Voltage Battery Pack
• Electronic Continuously Variable Transmission (e-CVT)

Coverage Includes

• Engine mechanical overhaul procedures
• Fuel injection system diagnostics
• Variable valve timing (i-VTEC) diagnostics
• Hybrid powertrain diagnostics
• Electric motor diagnostics and repair
• High-voltage battery testing and servicing
• Power Control Unit (PCU) diagnostics
• Regenerative braking system diagnostics
• Cooling system troubleshooting
• Emissions control system repairs
• Intake and exhaust system servicing
• CVT and e-CVT diagnostics and overhaul procedures
• Engine Control Module (ECM) diagnostics

Chassis & Suspension

• MacPherson strut front suspension repairs
• Torsion beam rear suspension servicing
• Steering system diagnostics and repair
• Electric Power Steering (EPS) diagnostics
• Wheel alignment specifications
• Wheel bearing replacement procedures
• Suspension component testing and troubleshooting
• Tire Pressure Monitoring System (TPMS) diagnostics

Braking Systems

• Anti-lock Braking System (ABS) diagnostics
• Electronic Brake Distribution (EBD) diagnostics
• Vehicle Stability Assist (VSA) diagnostics
• Regenerative braking system diagnostics (Hybrid)
• Brake hydraulic system service procedures
• Electronic parking brake diagnostics, when equipped
• Brake booster and master cylinder testing
• Brake component inspection and replacement procedures

Electrical & Wiring

• Complete Honda factory wiring diagrams
• High-voltage hybrid system schematics
• Battery and charging system diagnostics
• Starting system troubleshooting
• Power Control Unit (PCU) diagnostics
• Body Control Module diagnostics
• Power distribution schematics
• Fuse and relay identification
• Exterior and interior lighting diagnostics
• CAN Bus communication diagnostics
• Instrument cluster diagnostics
• Honda Connect infotainment troubleshooting

Driver Assistance & Safety Systems

• Honda Sensing® diagnostics
• Collision Mitigation Braking System™ (CMBS™) calibration procedures
• Adaptive Cruise Control (ACC) diagnostics
• Lane Keeping Assist System (LKAS) troubleshooting
• Road Departure Mitigation System diagnostics
• Traffic Sign Recognition diagnostics
• Parking sensor diagnostics where equipped
• Rearview camera troubleshooting

Air Conditioning & HVAC

• Automatic climate control diagnostics
• HVAC control module testing
• Refrigerant servicing specifications
• Heating and ventilation troubleshooting
• Hybrid climate control integration diagnostics
• Blower motor repairs
• Air distribution actuator diagnostics

Body & Interior

• Interior trim removal and installation procedures
• Honda Magic Seat® system servicing
• Door lock and power window diagnostics
• Tailgate and hatch repair procedures
• Exterior body repair procedures
• Smart entry and push-button start diagnostics
• Airbag and occupant restraint system servicing
• Keyless entry diagnostics

Diagnostics & Troubleshooting

• Honda-specific diagnostic procedures
• Diagnostic Trouble Code (DTC) lookup
• Hybrid system troubleshooting workflows
• Module programming and configuration procedures
• Component testing specifications
• Scan tool diagnostics
• Service functions and adaptations
• Electrical fault tracing procedures

Common Error Codes Covered

This manual provides diagnostic and repair procedures for thousands of Honda-specific fault codes, including:

Engine & Hybrid System Codes

• P0171 – System Too Lean
• P0300 – Random/Multiple Cylinder Misfire Detected
• P0420 – Catalyst System Efficiency Below Threshold
• P0A7F – Hybrid Battery Pack Deterioration
• P0A80 – Replace Hybrid Battery Pack
• P0A94 – DC/DC Converter Performance Fault

Transmission & Drivetrain Codes

• P0700 – Transmission Control System Malfunction
• P0847 – Transmission Fluid Pressure Sensor Circuit Low
• P0962 – Pressure Control Solenoid Control Circuit Low
• P1890 – Transmission System Performance Fault

ABS & Chassis Codes

• C0035 – Left Front Wheel Speed Sensor Fault
• C0040 – Right Front Wheel Speed Sensor Fault
• C0051 – Steering Angle Sensor Fault
• C1111 – ABS Pump Motor Circuit Fault

Network Communication Codes

• U0100 – Lost Communication with ECM/PCM
• U0121 – Lost Communication with ABS Control Module
• U0155 – Lost Communication with Instrument Panel Cluster
• U0401 – Invalid Data Received from ECM/PCM

Body Control Codes

• B1000 – Control Unit Internal Failure
• B12C5 – Smart Entry System Fault
• B14A1 – Body Control Module Communication Fault
• B1A69 – Occupant Detection System Fault

And thousands of additional diagnostic codes, wiring diagrams, troubleshooting workflows, technical service information, and repair procedures.

Who Is This Manual For?

This manual is ideal for:

• Professional Honda service centers
• Independent repair garages
• Hybrid vehicle specialists
• Mobile mechanics
• Automotive technicians
• Honda Fit owners performing DIY repairs
• Automotive training institutions

If you are troubleshooting, maintaining, servicing, or repairing a 2021 Honda Fit, this is the factory workshop manual you need.