2022 Toyota Yaris Service and Repair Manual

This 2022 Toyota Yaris THAI-Produced Service & Repair Manual Covers

Engine & Powertrain

• 2NR-FE 1.5L Dual VVT-i petrol engine diagnostics and repair
• Electronic Fuel Injection (EFI) system diagnostics
• Variable Valve Timing (Dual VVT-i) troubleshooting
• Engine cooling system service procedures
• Intake and exhaust system repairs
• Ignition system diagnostics
• Emissions control system repairs
• Engine performance troubleshooting
• Idle control system diagnostics

Transmission & Drivetrain

• CVT transmission diagnostics and repair
• Torque converter diagnostics
• Transmission control module troubleshooting
• Driveshaft and axle repairs
• Differential servicing procedures
• CV joint inspection and replacement
• Transmission fluid service procedures

Chassis & Suspension

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

Braking Systems

• Anti-lock Braking System (ABS) diagnostics
• Electronic Brake-force Distribution (EBD) diagnostics
• Brake Assist (BA) troubleshooting
• Vehicle Stability Control (VSC) diagnostics
• Traction Control (TRC) diagnostics
• Hill Start Assist Control (HAC) diagnostics
• Brake hydraulic system servicing
• Brake actuator testing procedures

Electrical & Wiring

• Complete factory wiring diagrams
• CAN Bus communication diagnostics
• Engine Control Module (ECM) diagnostics
• Smart Key System troubleshooting
• Push-button start diagnostics
• Charging system diagnostics
• Starting system repairs
• Lighting system diagnostics
• Body electrical troubleshooting

Audio & Convenience Systems

• Toyota infotainment system diagnostics
• Touchscreen display troubleshooting
• Bluetooth connectivity diagnostics
• USB connectivity troubleshooting
• Steering wheel control diagnostics
• Reverse camera diagnostics (where equipped)
• Smart entry system repairs
• Power mirror diagnostics

Air Conditioning & HVAC

• Automatic climate control diagnostics (where equipped)
• Manual air conditioning system repairs
• HVAC control module troubleshooting
• Refrigerant servicing procedures
• Blower motor diagnostics
• Heater and ventilation system repairs
• Air conditioning compressor diagnostics

Body & Interior

• Interior trim removal and installation procedures
• Power window repairs
• Door lock system diagnostics
• Smart entry system troubleshooting
• Exterior lighting repairs
• Airbag and occupant restraint system diagnostics
• Instrument cluster diagnostics
• Body repair and adjustment specifications

Toyota Safety Systems

• Pre-Collision System diagnostics (where equipped)
• Lane Departure Alert diagnostics (where equipped)
• Front camera diagnostics (where equipped)
• Safety system ECU troubleshooting
• Sensor calibration procedures

Diagnostics & Troubleshooting

• Toyota Techstream diagnostic procedures
• OBD-II diagnostic procedures
• ECU communication diagnostics
• Sensor testing specifications
• Component activation tests
• Network communication troubleshooting
• Step-by-step troubleshooting workflows

Common Error Codes Covered

This manual provides diagnostic and repair procedures for common Toyota Yaris fault codes found on the 2022 Thailand-produced model.

Engine Management Codes

• P0101 – Mass Air Flow Sensor Performance Problem
• P0117 – Engine Coolant Temperature Circuit Low Input
• P0171 – System Too Lean (Bank 1)
• P0300 – Random/Multiple Cylinder Misfire Detected
• P0012 – Camshaft Timing Over-Retarded

Fuel & Emissions Codes

• P0420 – Catalyst System Efficiency Below Threshold
• P0441 – EVAP System Incorrect Purge Flow
• P0455 – EVAP System Large Leak Detected
• P0505 – Idle Control System Malfunction

Transmission Codes

• P0705 – Transmission Range Sensor Circuit Malfunction
• P0717 – Input Speed Sensor No Signal
• P0746 – Pressure Control Solenoid Performance
• P0965 – Pressure Control Solenoid Circuit Malfunction

Brake & Chassis Codes

• C1201 – Engine Control System Malfunction
• C1241 – Low Battery Positive Voltage
• C1231 – Steering Angle Sensor Circuit Malfunction
• C1336 – Zero Point Calibration Incomplete

Safety System Codes

• C1A47 – Camera Axis Misalignment
• C1AA0 – Forward Recognition Camera Malfunction
• C1A63 – Pre-Collision System Malfunction

Communication Network Codes

• U0073 – Control Module Communication Bus Off
• U0100 – Lost Communication with ECM/PCM
• U0129 – Lost Communication with Brake Control Module
• U0155 – Lost Communication with Instrument Cluster

Body & Electrical Codes

• B1242 – Air Conditioning Control Circuit Fault
• B1271 – Combination Meter ECU Communication Fault
• B2312 – Door Lock Circuit Malfunction
• B2784 – Smart Key Communication Malfunction

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

Who Is This Manual For?

• Professional automotive workshops
• Toyota dealership technicians
• Fleet maintenance operators
• Independent repair garages
• Mobile mechanics
• Automotive training institutions
• Toyota Yaris owners performing DIY repairs

If you are troubleshooting, maintaining, servicing, or repairing a 2022 Toyota Yaris THAI-Produced Model, this is the factory workshop manual you need.