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2004 Toyota Highlander CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
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- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 Toyota Highlander car and truck
repair procedures including Toyota engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your Toyota Highlander automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Toyota -> Manual Air Conditioning & Heater System Diagnosis & Testing -> Troubleshooting -> 4-Door -> 5-Door -> A/C Indicator Does Not Light When Turning Mode Control Dial To DEF Position -> Air Inlet Door Inoperative On Two-Way Flow Position When Performing In These Conditions: Air Inlet Selector: FRESH, Blower Switch: ON, Temperature Control Selector: MAX. WARM, Mode Selector: FOOT OR FOOT/DEF (Two-Way Flow Heater) -> Avalon -> Blinking A/C Indicator -> Brightness Does Not Change When Lamp Control Switch Is Turned -> Camry & Camry Solara -> Celica -> Compressor Operates Intermittently -> Cool Air Comes Out Only At High Engine RPM -> Corolla, Corolla Matrix, Highlander & MR2 -> Echo -> Front A/C -> Insufficient Air Flow -> Insufficient Cooling -> No Air Flow Mode Control -> No Air Inlet Control -> No Air Inlet Control (Two-Way Flow Heater) -> No Air Outlet Control -> No Air Temperature -> No Air Temperature Control -> No Blower Control -> No Blower Operation -> No Blower Operation (Two-Way Flow Heater) -> No Compressor Operation -> No Condenser Fan Operation -> No Condenser Fan Operation (High Speed) -> No Condenser Fan Operation (Low Speed) -> No Condenser Fan Speed Change -> No Cool Air Comes Out -> No Engine Idle-Up When A/C Switch Is On -> No Engine Idle-Up With A/C Switch On -> No Mode Control -> No Temperature Control -> No Warm Air Comes Out -> PTC Heater Inoperative When Performing In These Conditions: Engine Coolant Temp: 140° or below, Engine Speed: 650 RPM Or Above, Temperature Control Selector: MAX. COOL (PTC HEATER) -> RAV4 -> Rear A/C -> Sequoia, Tacoma & Tundra -> Sienna
Vehicle: 2004 Toyota Highlander 3.3 V6 GAS
Avalon
No Blower Operation
- Faulty HTR fuse.
- Faulty heater main relay.
- Faulty blower motor.
- Faulty blower resistor.
- Faulty speed control switch.
- Faulty wiring harness.
No Blower Control
- Faulty blower motor.
- Faulty blower resistor.
- Faulty speed control switch.
- Faulty wiring harness.
No Air Temperature Control
- Improper engine coolant level.
- Faulty heater control assembly.
No Compressor Operation
- Refrigerant level.
- Faulty fuses.
- Fau...
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BRAKE SERVICE PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Toyota -> Front Disc Brakes -> Tightening Specifications
Vehicle: 2004 Toyota Highlander 3.3 V6 GAS
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Toyota -> Fuel Filter Replacement -> Highlander -> Fuel System Pressure Relief -> Models Less Union Bolt Fuel Line Connection -> Models w/Union Bolt Fuel Line Connection -> Removal & Installation
Vehicle: 2004 Toyota Highlander 3.3 V6 GAS
Fuel System Pressure Relief
Models w/Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable, if equipped.
- Disconnect the battery ground cable.
- Remove the fuel fill cap to release fuel tank pressure.
- Place a shop towel over the union bolt at top of fuel filter. Slowly loosen the union bolt allowing fuel pressure to bleed down.
- Whenever the union bolt is loosened to relieve fuel system pressure, always replace the bolt gasket.
Models Less Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio theft protecti...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2004 Toyota Highlander 2.4 L4 GAS
Disassemble
This procedure describes a driveline equipped with cardan joint in tube yoke. Driveline equipped with companion/slip yoke repeat steps to remove remaining cardan joint.
- Place driveshaft on suitable workbench. Do not damage driveshaft when servicing on workbench. Ensure driveline and components are reference marked to prevent driveline imbalance. Do not tighten driveshaft too tightly in a vise because this will cause driveline to become out of balance and result in driveline vibration.
- Tap outside of bearing cap with a drift to loosen snap ring.
- Remove snap ri...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Starter, Replace
Vehicle: 2004 Toyota Highlander 3.3 V6 GAS
- Disconnect battery ground cable.
- On models equipped with audio coded anti-theft system, obtain three-digit system code.
- On all models, if required, remove battery, battery tray and/or igniter bracket.
- Remove air cleaner assembly, if required.
- Disconnect electrical connec...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Cabin Air Filter Service -> Toyota -> 2003-07 Highlander & 2006-07 Highlander HV
Vehicle: 2004 Toyota Highlander 2.4 L4 GAS
On 2003 models, under normal operating conditions the cabin air filter should be replaced every 22,500 miles. In dusty areas change the cabin air filter every 10,000 miles.
On 2004-07 models, the cabin air filter should be cleaned every 18 months or 15,000 miles and replaced every 36 months or 30,000 miles. The filter should be replaced more often if air flow is less than normal.
- Remove the screw retaining the eyelet clip, Fig. .
- Open the glove compartment door.
- Push inward at each side of the glove compartment door to disengage the retainers, then lower t...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Toyota -> Air Bag Warning Lamp -> 2003-09 Highlander
Vehicle: 2004 Toyota Highlander 2.4 L4 GAS
- Connect two service wires to terminals Tc and CG of data link connector.
- Disconnect Tc within 10 seconds after DTC output begins.
- SRS warning lamps will illuminate 3 seconds later. Within 2-4 seconds, connect terminals Tc and CG of DLC.
- SRS warning lamp will go off within 2-4 seconds. Within 2-4 seconds, disconnect te...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 2004 Toyota Highlander 3.3 V6 GAS
Inlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at heater core.
- Remove hose from heater core.
- Reposition hose clamp at water outlet.
- Remove hose from water outlet.
- Remove hose from vehicle.
- Reverse procedure to install.
Outlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp a...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Toyota Highlander AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2004 Toyota Highlander 3.3 V6 GAS
- Raise and support vehicle.
- Remove righthand front wheel.
- Remove engine under cover.
- Remove righthand front fender apron seal.
- Loosen alternator pivot bolt.
- Loosen alternator adjuster lock bolt.
- Loose...
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COMPONENT LOCATION DIAGRAMS FOR 2004 Toyota Highlander AUTOMOBILES
Component location diagrams for most 2004 Toyota Highlander cars and light trucks sold in the U.S. from 1990+.
 Horn System Diagram for 2004 Toyota Highlander 3.3 V6 GASComponents on diagram: |
 Body Diagram for 2004 Toyota Highlander 3.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2004 Toyota Highlander AUTOMOBILES
OEM drawn wiring diagrams for most 2004 Toyota Highlander cars and light trucks sold in the U.S.
 2004 Toyota Highlander 2.4 L4 GAS Wiring DiagramComponents on diagram: |
 2004 Toyota Highlander 2.4 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2004 Toyota Highlander AUTOMOBILES
OEM TSB listings for most 2004 Toyota Highlander cars and light trucks sold in the U.S. from 1985+.
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Document: ABNORMAL HORN OPERATION Vehicle: 2004 Toyota Highlander 3.3 V6 GAS Auto Systems: |
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Document: Abnormal Horn Operation Vehicle: 2004 Toyota Highlander 3.3 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2004 Toyota Highlander AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 Toyota Highlander cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2004 Toyota Highlander cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2004 Toyota Highlander cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2004 Toyota Highlander cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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