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2004 Toyota Sienna CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Automatic Temperature Control System Diagnosis & Testing -> Diagnosis & Testing, Sienna -> 2003 -> 2004 -> A/C Control Display -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Less Scan Tool -> Scan Tool
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
For component inspection not covered, refer to .
Accessing Diagnostic Trouble Codes
Scan Tool
Connect a suitably programmed scan tool to Data Link Connector (DLC) and follow scan tool manufacturer's instructions.
A/C Control Display
If the A/C compressor locks up during operation, the HVAC assembly A/C switch indicator will begin blinking. Inspect for compressor lock DTC 22, then inspect the circuit or component.
Entering diagnosis inspection modes is possible by operating each A/C control switch as illustrated, Fig. .
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BRAKE SERVICE PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Drum Brakes -> Precautions -> Audio Coded Anti-Theft System
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
Audio Coded Anti-Theft System
Some models are equipped with an audio coded anti-theft system that will disable the radio when the battery cable is disconnected. The system can be identified by the "ANTI-THEFT SYSTEM" on the cassette tape lid. Obtain 3 digit customer code for input. Reset system after service as follows:
- Obtain 3 digit audio anti-theft code.
- Depress 1 (PROG) while depressing righthand side of TUNE SEEK button, - - - will appear in tape operation display.
- To enter the first digit, depress 1 (PROG) button repeatedly until the number of times depressed equals the first digit ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Fuel Filter Scheduled Maintenance -> 1986-06 Models -> Normal Service -> Severe Service
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
Normal Service
Service as r...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2004 Toyota Sienna 3.3 V6 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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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Diagnosis & Testing -> Clearing DTCs (Diagnostic Trouble Codes)
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Place the ignition switch in the Off position.
- Using Toyota SST or other suitable jumper, connect terminals TS and CG of DLC3. The DLC3 is located under the left side of the instrument panel.
- Place the ignition switch in the On position.
- Press the tire pressure warning reset switch, Fig. .
- If the tire pressure warning lamp illuminates for 3 seconds and then turn Off, a normal condition is indicated.
- If the tire pressure warning lamp blinks in .5 second intervals, a problem in the TPMS is indicated.
- If the TPMS warning lamp result is not normal, refer ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Alternator, Replace
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Disconnect battery ground cable at battery.
- Remove wire harness clamp.
- Disconnect alternator connector.
- Open terminal cap and remove nut and alternator wire.
- Loosen alternator mounting bolts.
- Loosen bolt to lessen tension of V belt No. 1.
- ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Air Bag Warning Lamp -> 2004-09 Sienna
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Connect two service wires to terminals Tc and CG of data link connector.
- Turn ignition switch to On position and wait for approximately 6 seconds.
- SRS warning lamps will illuminate 2-4 seconds later. Within 1-5 seconds, ground terminal Tc of DLC.
- SRS warning lamp will go off within 2-4 seconds. Within 1-5 seconds, release...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
Lower
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at radiator outlet.
- Remove hose from radiator.
- Reposition hose clamp at water inlet.
- Remove hose from water inlet.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Raise and support vehicle.
- Remove right front wheel.
- Remove bolts from righthand fender apron seal, then remove apron seal.
- Rotate or lift belt tensioner arm counterclockwise, usi...
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COMPONENT LOCATION DIAGRAMS FOR 2004 Toyota Sienna AUTOMOBILES
Component location diagrams for most 2004 Toyota Sienna cars and light trucks sold in the U.S. from 1990+.
Power Door Lock Control System Diagram for 2004 Toyota Sienna 3.3 V6 GAS Components on diagram: |
Instrument Panel Diagram for 2004 Toyota Sienna 3.3 V6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 2004 Toyota Sienna AUTOMOBILES
OEM drawn wiring diagrams for most 2004 Toyota Sienna cars and light trucks sold in the U.S.
2004 Toyota Sienna 3.3 V6 GAS Wiring Diagram Components on diagram: |
2004 Toyota Sienna 3.3 V6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2004 Toyota Sienna AUTOMOBILES
OEM TSB listings for most 2004 Toyota Sienna cars and light trucks sold in the U.S. from 1985+.
Document: BRAKE BOOSTER RATTLE/BUZZ NOISE Vehicle: 2004 Toyota Sienna 3.3 V6 GAS Symptoms: |
Document: POWER FUNCTION OF SLIDING DOOR INOPERATIVE Vehicle: 2004 Toyota Sienna 3.3 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2004 Toyota Sienna AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 Toyota Sienna 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 Sienna 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 Sienna 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 Sienna 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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