Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 518 (HYBRID BATTERY SYSTEM (DIAGNOSTICS))PART AND SYSTEM NAME LIST
2004 Toyota Matrix XR, FWD, Standard
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.
- 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 DEFINITIONTOYOTA 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 - ABBREVIATIONS LIST IN THIS MANUAL 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.