Part And System Name List

2004 Toyota Matrix XR, FWD, StandardSECTION Part And System Name List
WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. PART AND SYSTEM NAME LIST 

    This reference list indicates the part names used in this manual along with their definitions.

    TOYOTA PART OF SYSTEM NAME DEFINITION

    TOYOTA name Definition
    Toyota HCAC system HC adsorptive three-way catalytic converter
    Hydrocarbon absorptive catalyst (HCAC) system HC adsorptive three-way catalytic converter
    HC adsorptive three-way catalyst HC adsorptive three-way catalytic converter
    Variable valve timing sensor, VVT sensor Camshaft position sensor
    Variable valve timing system, VVT system Camshaft timing control system
    Oil control valve for variable valve timing, OCV for VVT, VVT OCV Camshaft timing oil control valve
    Variable timing and lift, VVTL Camshaft timing and lift control
    Engine speed sensor Crankshaft position sensor
    Knock control module Engine knock control module
    Knock sensor Engine knock sensor
    Vacuum sensor Manifold air pressure sensor
    Internal control module, Control module, Engine control ECU,PCM Power train control module
    FC idle Deceleration fuel cut
    Idle air control Idle speed control
    CCV, Canister closed valve Evaporative emissions canister vent valve
    VSV for EVAP Evaporative emissions canister purge valve
    VSV for bypass valve, VSV for vapor pressure sensor Evaporative emission pressure switching valve
    Vapor pressure sensor Fuel tank pressure sensor
    Charcoal canister, Canister Evaporative emissions canister
    ORVR system On-board refueling vapor recovery system
    Intake manifold runner control Intake manifold tuning system
    Intake manifold runner valve, IMRV, IACV (runner valve) Intake manifold tuning valve
    Intake control VSV Intake manifold tuning solenoid valve
    O2 sensor Heater oxygen sensor
    Oxygen sensor pumping current circuit Oxygen sensor output signal
    Oxygen sensor reference ground circuit Oxygen sensor signal ground
    Accel position sensor Accelerator pedal position sensor
    Throttle actuator control motor, Actuator control motor, Electronic throttle motor, Throttle control motor Electronic throttle actuator
    Electronic throttle control system, Throttle actuator control system Electronic throttle control system
    Throttle/pedal position sensor, Throttle/pedal position switch, Throttle position sensor/switch Throttle position sensor
    Turbo press sensor Turbocharger pressure sensor
    Turbo VSV Turbocharger pressure control solenoid valve
    P/S pressure switch Power-steering pressure switch
    Speed sensor, Vehicle speed sensor "A", Speed sensor for skid control ECU Vehicle speed sensor
    ATF temperature sensor, Trans, fluid temp, sensor, ATF temperature sensor "A" Transmission fluid temperature sensor
    Electronic controlled automatic transmission, ECT Electronically controlled automatic transmission
    Intermediate shaft speed sensor "A" Counter gear speed sensor
    Output speed sensor Output shaft speed sensor
    Input speed sensor, Input turbine speed sensor "A", Speed sensor (NT), Turbine speed sensor Input turbine speed sensor
    PNP switch, NSW Park/neutral position switch
    Pressure control solenoid Transmission pressure control solenoid
    Shift solenoid Transmission shift solenoid valve
    Transmission control switch, Shift lock control unit Shift lock control module
    Engine immobilizer system, Immobilizer system Vehicle anti-theft system
  2. ABBREVIATIONS LIST IN THIS MANUAL 
    Fig 1: Abbreviations Table (1 Of 2)
    G02917977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    ABBREVIATIONS

    Abbreviations Meaning
    J/C Junction Connector
    LH Left-Hand
    MG1 Motor Generator No. 1
    MG2 Motor Generator No. 2
    MIL Malfunction Indicator Lamp
    Min. Minute(s)
    MY Model Year
    No. Number
    NVRAM Non-Volatile Random Access Memory
    OBD On-Board Diagnostic
    OCV Oil Control Valve
    O/D Overdrive
    OP Open Loop
    PCM Powertrain Control Module
    PNP Park/Neutral Position
    PROM Programmable Read Only Memory
    PS, P/S Power Steering
    PSP Power Steering Pressure
    PWM Pulse Width Modulation
    RAM Random Access Memory
    R/B Relay Block
    Rev. Revolutions
    RH Right-Hand
    RM Relay Module
    ROM Read Only Memory
    RPM Revolution Per Minutes (RPM)
    Rr Rear
    SAE Society of Automotive Engineers Inc.
    Sec. Second(s)
    SMR System Main Relay
    SMT Sequential Manual Transmission
    SOC State Of Charge
    SRI Service Reminder Indicator
    SRT System Readiness Test
    ST Scan Tool
    STD Standard
    SW Switch
    TCM Transmission Control Module
    THA Intake Air Temperature
    THS TOYOTA Hybrid System
    TR Transmission Range
    TWC Three-Way Catalytic Converter
    VIN Vehicle Identification Number
    VM Voltage Monitor
    VR Voltage Regulator
    VSS Vehicle Speed Sensor
    VSV Vacuum Switching Valve
    VVT Variable Valve Timing (System)
    VVTL Variable Valve Timing and Lift (System)
    w/ With
    w/o Without
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.