Engine Controls - System & Component Testing - 4-Cylinder

• Introduction
• Service Precautions
  • PRIUS
• Component Locations
  • Engine Control System
  • Engine Control Module
• Programming
  • Power Sun Roof REINITIALIZATION Procedure
    • Camry
    • Celica
• Air Induction Systems
  • Acoustic Control Induction System Vacuum Switching Valve (CELICA)
  • Electronic Throttle Control System
    • Notes
    • Camry, Camry Solara, Celica (VIN "Y"), MR2 With Sequential Manual Transaxle & Prius
• Computerized Engine Controls
  • A/C Compressor Lock Sensor Circuit
    • Camry
    • Camry Solara With Manual A/C
    • Celica
    • Highlander
    • RAV4
  • A/C-Cut Control System Circuit
    • Prius
  • A/C Evaporator Temperature Sensor Circuit
    • Notes
    • Camry
    • Camry Solara With Manual A/C
    • Celica
    • Corolla & Matrix
    • Echo
    • Highlander
    • MR2
    • Prius
    • RAV4
    • Tacoma
  • Engine Control Module Power & Ground Circuits
  • Engine Control Module Power Source Circuit
    • Notes
    • Camry
    • Camry Solara
    • Celica
    • Corolla
    • Echo
    • Highlander
    • MR2
    • Matrix
    • Prius
    • RAV4
    • Tacoma
  • Fuel Pump Control Circuit
    • Notes
    • Camry
    • Camry Solara
    • Celica
    • Corolla
    • Echo
    • Highlander
    • Matrix
    • MR2
    • Prius
    • RAV4
    • Tacoma
  • Starter Motor Signal Circuit
    • Notes
    • Camry
    • Camry Solara
    • Celica
    • Corolla
    • Echo
    • Highlander
    • MR2
    • Matrix
    • Prius
    • RAV4
    • Tacoma
• Engine Sensors & Switches
  • Accelerator Pedal Position Sensor
    • Camry, Camry Solara, MR2 & Prius
  • A/C Compressor Lock Sensor
    • Camry, Camry Solara With Manual A/C, Celica, Highlander, MR2 & RAV4
  • A/C Evaporator Temperature Sensor
    • Notes
    • Camry
    • Camry Solara With Manual A/C
    • Celica
    • Corolla & Matrix
    • Echo
    • Highlander
    • MR2
    • Prius
    • RAV4
    • Tacoma
  • Air/Fuel Ratio Sensor
    • Camry
    • Camry Solara
    • Highlander & RAV4
    • Tacoma
  • Airflow Meter
  • BRAKELIGHT Switch
    • Notes
    • Camry, Camry Solara & Highlander
    • Celica, Corolla, Matrix, MR2, RAV4 & Tacoma
    • Echo
  • Camshaft Position Sensor
  • Crankshaft Position Sensor
  • EGR Gas Temperature Sensor
    • Tacoma
  • Engine Coolant Temperature Sensor
    • Camry, Camry Solara, Celica, Corolla & ECHO
    • Highlander, MR2, Matrix, Prius, RAV4 & Tacoma
  • Heated Oxygen Sensor
    • Camry
    • Camry Solara
    • Celica
    • Corolla & Matrix
    • Echo
    • Highlander
    • MR2
    • Prius
    • RAV4
    • Tacoma
  • Ignition Switch
  • Intake Air Temperature Sensor
  • Knock Sensor
    • Notes
    • Camry (PZEV), Celica, Corolla & Matrix
    • Camry, Camry Solara, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma
  • Park/Neutral Position Switch
    • Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, RAV4 & Tacoma
  • Positive Temperature Coefficient Heater
    • Echo
    • Prius
  • Power Steering Pressure Sensor
    • Notes
    • Echo
  • Power Steering Pressure Switch
    • Notes
    • Camry, Camry Solara, Celica, Corolla, RAV4 & Tacoma
    • Highlander
  • Throttle Position Sensor
    • Camry
    • Camry Solara
    • Celica (VIN "R")
    • Celica (VIN "Y")
    • Corolla
    • Echo
    • Highlander
    • MR2 (With M/T)
    • MR2 (With SMT)
    • Matrix
    • Prius
    • RAV4
    • Tacoma
  • Vacuum Sensor For Hydrocarbon Absorber Catalyst System
    • Notes
    • Prius
  • Vapor Pressure Sensor
  • Variable Valve Timing Sensor
    • Notes
    • All Models
  • Vehicle Speed Sensor
    • Camry
    • Camry Solara
    • Celica
    • Corolla
    • Echo
    • Highlander
    • MR2
    • Matrix
    • Prius
    • RAV4
    • Tacoma
• Modules, Motors, Relays & Solenoids
  • Throttle Control Motor
    • Notes
    • Camry, Camry Solara, MR2 With Sequential Manual Transaxle & Prius
  • A/C Compressor Clutch Relay
    • Notes
    • Camry
    • Camry Solara
    • Celica
    • Corolla, ECHO, Highlander, Matrix, Prius, RAV4 & Tacoma
    • MR2
  • A/F Heater Relay
    • Notes
    • Camry, Camry Solara & Tacoma
    • Highlander
    • RAV4
  • Circuit Opening Relay
  • EFI Main Relay
  • HTR Sub1 Relay
  • IG2 Relay
    • Notes
    • Celica
    • MR2
    • Prius
    • RAV4
• Fuel Systems
  • Fuel System Pressure Release
  • Fuel Delivery
    • Notes
    • Circuit Opening Relay
    • EFI Main Relay
    • Fuel Pump Resistance & Operation (Camry)
    • Fuel Pump Resistance & Operation (Camry Solara, Celica, Corolla, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma
  • Fuel Control
    • Fuel Injectors (Camry Except PZEV)
    • Fuel Injectors (Camry PZEV)
    • Fuel Injectors (Camry Solara)
    • Fuel Injectors (Celica)
    • Fuel Injectors (Corolla)
    • Fuel Injectors (ECHO)
    • Fuel Injectors (Highlander)
    • Fuel Injectors (Matrix)
    • Fuel Injectors (MR2)
    • Fuel Injectors (Prius)
    • Fuel Injectors (RAV4)
    • Fuel Injectors (Tacoma)
    • Fuel Cut System (Camry, Corolla, Highlander & Matrix)
    • Fuel Cut System (Camry Solara, Celica, ECHO, MR2, RAV4 & Tacoma)
    • Fuel Cut System (Prius)
  • Fuel Tank Cap
• Idle Control Systems
  • Idle Air Control Valve
    • Camry
    • Camry Solara
    • Celica & ECHO
    • Corolla & Matrix
    • Highlander
    • MR2 With Standard Type Manual Transaxle
    • Prius
    • RAV4
    • Tacoma
  • Throttle Body
    • Camry & Camry Solara
    • Celica (With VIN "R")
    • Celica (With VIN "Y")
    • Corolla & Matrix
    • ECHO, MR2 With Standard Type Manual Transaxle & RAV4
    • Highlander
    • MR2 With Sequential Manual Transaxle
    • Prius
    • Tacoma
• Ignition Systems
  • Notes
  • Timing Control Systems
    • Knock Sensor
• Emission Systems & Sub-Systems
  • Emission System Component Location
  • Exhaust Gas RECIRCULATION System
    • Notes
    • System Check (Tacoma)
    • EGR Gas Temperature Sensor (Tacoma)
    • EGR Vacuum Modulator (Tacoma)
    • EGR Vacuum Switching Valve (Tacoma 3RZ-FE)
    • EGR Valve (Tacoma 3RZ-FE)
  • Hydrocarbon Absorber Catalyst System (PRIUS)
    • Notes
    • Hydrocarbon Absorber Catalyst System Check
    • HCAC Vacuum Switching Valve
    • Vacuum Sensor For Hydrocarbon Absorber & Catalyst System Inspection
  • Fuel Evaporative System
    • Notes
    • Fuel EVAP System Test (Camry Except PZEV)
    • Fuel EVAP System Test (Camry PZEV)
    • Fuel EVAP System Test (Camry Solara)
    • Fuel EVAP System Test (Celica)
    • Fuel EVAP System Test (Corolla)
    • Fuel EVAP System Test (ECHO)
    • Fuel EVAP System Test (Highlander)
    • Fuel EVAP System Test (Matrix With 1ZZ-FE Engine)
    • Fuel EVAP System Test (Matrix With 2ZZ-GE Engine)
    • Fuel EVAP System Test (MR2)
    • Fuel EVAP System Test (Prius)
    • Fuel EVAP System Test (RAV4)
    • Fuel EVAP System Test (Tacoma)
    • Canister Closed Valve Vacuum Switching Valve (Camry Except PZEV)
    • Canister Closed Valve Vacuum Switching Valve (Camry PZEV)
    • Canister Closed Valve Vacuum Switching Valve (Celica)
    • Canister Closed Valve Vacuum Switching Valve (Corolla)
    • Canister Closed Valve Vacuum Switching Valve (ECHO)
    • Canister Closed Valve Vacuum Switching Valve (Highlander)
    • Canister Closed Valve Vacuum Switching Valve (Matrix)
    • Canister Closed Valve Vacuum Switching Valve (MR2)
    • Canister Closed Valve Vacuum Switching Valve (Prius)
    • Canister Closed Valve Vacuum Switching Valve (RAV4)
    • Canister Closed Valve Vacuum Switching Valve (Tacoma)
    • Charcoal Canister (Camry Except PZEV)
    • Charcoal Canister (Camry PZEV)
    • Charcoal Canister (Camry Solara)
    • Charcoal Canister (Celica)
    • Charcoal Canister (Corolla)
    • Charcoal Canister (ECHO)
    • Charcoal Canister (Highlander)
    • Charcoal Canister (Matrix With 1ZZ-FE Engine)
    • Charcoal Canister (Matrix With 2ZZ-GE Engine)
    • Charcoal Canister (MR2)
    • Charcoal Canister (Prius)
    • Charcoal Canister (RAV4)
    • Charcoal Canister (Tacoma)
    • Cut-Off Valve
    • EVAP Vacuum Switching Valve (All Models)
    • Overfill Check Valve
    • Pressure Switching Valve Vacuum Switching Valve (Camry, Camry Solara, Celica, Corolla, Highlander, MR2, RAV4 & Tacoma)
    • Purge Flow Switching Valve Vacuum Switching Valve (Prius)
    • Vapor Pressure Sensor (Camry Except PZEV)
    • Vapor Pressure Sensor (Camry PZEV)
    • Vapor Pressure Sensor (Camry Solara)
    • Vapor Pressure Sensor (Celica & ECHO)
    • Vapor Pressure Sensor (Corolla)
    • Vapor Pressure Sensor (Highlander)
    • Vapor Pressure Sensor (Matrix)
    • Vapor Pressure Sensor (MR2)
    • Vapor Pressure Sensor (Prius)
    • Vapor Pressure Sensor (RAV4)
    • Vapor Pressure Sensor (Tacoma)
  • Positive Crankcase Ventilation
    • Camry & Highlander
    • Camry Solara, Celica, Corolla, ECHO, MR2, Prius, RAV4 & Tacoma
• Throttle Controls
  • Electronic Throttle Control System
    • Notes
    • Camry, Camry Solara, MR2 With Sequential Manual Transaxle & Prius
  • Throttle Opener
    • Tacoma
• Variable Valve Lift System
  • Notes
  • Variable Valve Lift Oil Control Valve
    • Notes
    • Camry
    • Camry Solara
    • Celica
    • Corolla, Highlander, Matrix, MR2, Prius & RAV4
    • Echo
• Variable Valve Timing System
  • Notes
  • Variable Valve Timing Sensor
    • Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, MR2, Prius & RAV4
  • Variable Valve Timing Camshaft Timing Oil Control Valve
    • Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, MR2, Prius & RAV4