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Engine Control System & Component Testing - 4-CYLINDER Toyota Highlander I

Step-by-step instructions on "Engine Control System & Component Testing - 4-CYLINDER" for Toyota Highlander I (2001–2003). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

PRIUS

Camry

Celica

ELECTRONIC THROTTLE CONTROL SYSTEM

Camry, Camry Solara, MR2 With Sequential Manual Transaxle & Prius

Camry, Celica & Highlander

Camry Solara With Manual A/C & MR2

RAV4

Highlander, MR2 & RAV4

Camry Solara With Manual A/C

ENGINE CONTROL MODULE POWER SOURCE CIRCUIT

Camry Solara

Corolla

ECHO

Highlander

MR2

Tacoma

FUEL PUMP CONTROL CIRCUIT

Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma

STARTER SIGNAL CIRCUIT

Camry & Camry Solara

Celica & ECHO

Power & Ground Circuits

MR2 With Sequential Manual Transaxle

AIR/FUEL SENSOR

Highlander & RAV4

AIRFLOW METER

BRAKELIGHT SWITCH

Camry, Camry Solara & Highlander

Celica, Corolla, MR2, RAV4 & Tacoma

CAMSHAFT POSITION SENSOR

CRANKSHAFT POSITION SENSOR

Tacoma 2.7L 3RZ-FE

Highlander, MR2, Prius, RAV4 & Tacoma

INTAKE AIR TEMPERATURE SENSOR

KNOCK SENSOR

Camry, Camry Solara, Celica 1.8L 1ZZ-FE, Corolla, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma

Celica 1.8L 2ZZ-GE

Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, RAV4 & Tacoma

POWER STEERING PRESSURE SENSOR

POWER STEERING PRESSURE SWITCH

Camry, Camry Solara, Celica, Corolla, RAV4 & Tacoma

Celica, Corolla, ECHO, Highlander, RAV4 & Tacoma

VAPOR PRESSURE SENSOR

VARIABLE VALVE TIMING SENSOR

Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, MR2, Prius & RAV4

THROTTLE CONTROL MOTOR

A/C COMPRESSOR CLUTCH RELAY

A/F HEATER RELAY

CIRCUIT OPENING RELAY

EFI MAIN RELAY

HTR SUB1 RELAY

IG2 RELAY

FUEL SYSTEM PRESSURE RELEASE

FUEL DELIVERY

Fuel Injectors (Celica, Corolla, ECHO, Highlander, MR2, Prius & RAV4)

Fuel Injectors (Tacoma)

Fuel Cut System (Camry & Highlander)

Fuel Cut System (Camry Solara, Celica, Corolla, ECHO, MR2, RAV4 & Tacoma)

Fuel Cut System (Prius)

MR2 With Standard Type Manual Transaxle

Celica, Corolla, ECHO, MR2 With Standard Type Manual Transaxle & RAV4

IGNITION SYSTEMS

EMISSION SYSTEMS & SUB-SYSTEMS

System Check (Tacoma 2.7L 3RZ-FE)

EGR Gas Temperature Sensor (Tacoma 2.7L 3RZ-FE)

EGR Vacuum Modulator (Tacoma 2.7L 3RZ-FE)

EGR Valve (Tacoma 2.7L 3RZ-FE)

HYDROCARBON ADSORBER CATALYST SYSTEM (PRIUS)

Actuator For HCAC System & By-Pass Valve

HCAC Vacuum Switching Valve

FUEL EVAPORATIVE SYSTEM

Canister Closed Valve Vacuum Switching Valve (Prius)

Charcoal Canister

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)

Vapor Pressure Sensor (Highlander)

Vapor Pressure Sensor (Prius)

Camry & Highlander

Camry Solara, Celica, Corolla, ECHO, MR2, Prius, RAV4 & Tacoma

VARIABLE VALVE LIFT SYSTEM

VARIABLE VALVE LIFT OIL CONTROL VALVE

VARIABLE VALVE TIMING SYSTEM