2021 Toyota RAV4 Plug-in Hybrid Service and Repair Manual

This 2021 Toyota RAV4 Plug-in Hybrid Service and Repair Manual Covers

Engine & Hybrid Powertrain

• A25A-FXS 2.5L Dynamic Force petrol engine diagnostics and repair
• Hybrid Synergy Drive system diagnostics
• Front motor-generator diagnostics
• Rear electric AWD motor diagnostics
• Hybrid power control unit diagnostics
• Fuel injection system troubleshooting
• Engine cooling system service procedures
• Hybrid cooling system diagnostics
• Exhaust and emissions system repairs
• Engine performance troubleshooting

High-Voltage Battery & Charging System

• Lithium-ion battery diagnostics
• Battery cooling system service procedures
• High-voltage safety procedures
• Battery ECU diagnostics
• On-board charger diagnostics
• Charging port inspection and repair
• Plug-in charging system troubleshooting
• DC-DC converter testing procedures
• High-voltage cable inspection procedures
• Insulation resistance testing

Transmission & Drivetrain

• Hybrid transaxle diagnostics and repair
• Electronic On-Demand AWD system diagnostics
• Front and rear drive motor diagnostics
• Reduction gear servicing procedures
• Differential repairs
• Driveshaft and axle service procedures
• Regenerative braking integration diagnostics
• Hybrid drivetrain troubleshooting

Chassis & Suspension

• MacPherson strut front suspension repairs
• Multi-link rear suspension service procedures
• Electric Power Steering (EPS) diagnostics
• Wheel alignment specifications
• Steering angle sensor diagnostics
• Suspension component replacement procedures
• Wheel bearing service procedures
• Ride and handling troubleshooting

Braking Systems

• Electronically Controlled Brake (ECB) diagnostics
• Regenerative braking system troubleshooting
• Anti-lock Braking System (ABS) diagnostics
• Electronic Brake-force Distribution (EBD) diagnostics
• Vehicle Stability Control (VSC) repairs
• Traction Control System (TRAC) diagnostics
• Brake actuator testing procedures
• Electronic parking brake diagnostics
• Brake booster diagnostics

Toyota Safety Sense™ Systems

• Pre-Collision System (PCS) diagnostics
• Dynamic Radar Cruise Control (DRCC) diagnostics
• Lane Departure Alert (LDA) troubleshooting
• Lane Tracing Assist (LTA) diagnostics
• Road Sign Assist (RSA) diagnostics
• Automatic High Beam (AHB) troubleshooting
• Blind Spot Monitor (BSM) diagnostics (where equipped)
• Rear Cross Traffic Alert (RCTA) diagnostics (where equipped)
• Front camera calibration procedures
• Radar sensor alignment procedures

Electrical & Wiring

• Complete factory wiring diagrams
• CAN Bus communication diagnostics
• LIN Bus communication diagnostics
• Gateway ECU diagnostics
• Smart Key System troubleshooting
• Push-button start diagnostics
• Power management control ECU diagnostics
• Charging system diagnostics
• Lighting system diagnostics
• Body electrical troubleshooting

Infotainment & Connectivity

• Toyota multimedia system diagnostics
• Touchscreen display troubleshooting
• Bluetooth connectivity diagnostics
• Apple CarPlay diagnostics
• Android Auto diagnostics
• USB connectivity diagnostics
• Voice recognition system troubleshooting
• Navigation system diagnostics (where equipped)
• Connected services diagnostics

Air Conditioning & HVAC

• Dual-zone climate control diagnostics
• Electric A/C compressor diagnostics
• HVAC control module troubleshooting
• Refrigerant servicing procedures
• Blower motor diagnostics
• Cabin climate control repairs
• Hybrid climate management system diagnostics

Body & Interior

• Interior trim removal and installation procedures
• Power liftgate diagnostics
• Power window repairs
• Door lock system diagnostics
• Exterior lighting repairs
• Airbag and occupant restraint system diagnostics
• Body Control Module (BCM) troubleshooting
• Instrument cluster diagnostics
• Camera and mirror system repairs

Diagnostics & Troubleshooting

• Toyota Techstream diagnostic procedures
• Hybrid system health checks
• ECU communication diagnostics
• Sensor testing specifications
• Component activation tests
• ADAS calibration procedures
• Network communication troubleshooting
• Step-by-step troubleshooting workflows

Common Error Codes Covered

This manual provides diagnostic and repair procedures for common Toyota RAV4 Plug-in Hybrid fault codes.

Engine Management Codes

• P0101 – Mass Air Flow Sensor Performance Problem
• P0171 – System Too Lean (Bank 1)
• P0300 – Random/Multiple Cylinder Misfire Detected
• P0401 – EGR Flow Insufficient Detected
• P26CB – Electric Coolant Pump Performance

Hybrid System Codes

• P0A0F – Engine Failed to Start
• P0A1F – Hybrid Powertrain Control Module Malfunction
• P0A7F – Hybrid Battery Pack Deterioration
• P0AC4 – Hybrid Powertrain Control Module Requested MIL Illumination
• P3004 – High Voltage Power Resource Malfunction

Battery & Charging Codes

• P0AA6 – High Voltage System Isolation Fault
• P0D26 – Battery Cooling System Performance Fault
• P31E7 – Plug-in Charging Communication Malfunction
• P0A80 – Replace Hybrid Battery Pack
• P1C7A – Charging System Performance Fault

Brake & Chassis Codes

• C1241 – Low Battery Positive Voltage
• C1336 – Zero Point Calibration Incomplete
• C1425 – Brake Actuator Malfunction
• C1464 – Wheel Speed Sensor Malfunction

ADAS & Safety System Codes

• C1A10 – Radar Sensor Malfunction
• C1AA0 – Forward Recognition Camera Malfunction
• C1A47 – Camera Axis Misalignment
• C1A63 – Pre-Collision System Malfunction
• C1A4A – Blind Spot Monitor System Malfunction

Communication Network Codes

• U0100 – Lost Communication with ECM/PCM
• U0129 – Lost Communication with Brake Control Module
• U0235 – Lost Communication with Radar Sensor
• U0155 – Lost Communication with Instrument Cluster
• U1000 – CAN Communication Malfunction

Body & Electrical Codes

• B1242 – Air Conditioning Control Circuit Fault
• B1271 – Combination Meter ECU Communication Fault
• B2784 – Smart Key Communication Malfunction
• B2282 – Power Source Control ECU Malfunction

And thousands of additional Toyota diagnostic codes, wiring diagrams, calibration procedures, component locations, testing specifications, and repair instructions.

Who Is This Manual For?

• Professional automotive workshops
• Toyota dealership technicians
• Hybrid and EV specialists
• Fleet maintenance operators
• Independent repair garages
• Mobile mechanics
• Automotive training institutions
• Toyota RAV4 Plug-in Hybrid owners performing advanced DIY repairs

If you are troubleshooting, maintaining, servicing, or repairing a 2021 Toyota RAV4 Plug-in Hybrid (PHV), this is the factory workshop manual you need.