2002 Toyota RAV4 | Electrical Wiring Diagrams

2002 Toyota RAV4 | Electrical Wiring Diagrams

ACA21 & ACA26 Series | All Models Including FWD & AWD | 2.0L I4 Engine

Pub No. EWD466U | Toyota Motor Corporation

This is the real thing, written by the manufacturer specifically for the vehicle(s) listed. This manual containsComplete Wiring Diagrams for the models listed above including Schematics and Routing Diagrams. This book is very detailed with large color diagrams and well labeled schematics. A must for anyone who insists on Genuine OEM quality parts. Approx. 225 pages.
Topics Include:

• Introduction
• How to Use the Manual
• Troubleshooting
• Abbreviations
• Glossary of Terms and Symbols
• Relay Locations
• Electrical Wiring Routing
• Power Source (Current Flow Chart)
• System Circuits
• Ground Points
• Overall Wiring Diagrams
• Connector Part Numbers

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Toyota Engine 3UZFE Mechanical

The Toyota UZ engine family is a 32-valve quad-camshaft V8 piston engine series used in Toyota's luxury offerings and sport utility vehicles.[1] Three basic versions have been produced, the 1UZ-FE, 2UZ-FE, and 3UZ-FE. The UZ series was mostly replaced by the UR series but the 3UZ-FE continues to be produced for the current model Crown Majesta 4WD (Japanese market only).
1UZ-FE
The 4.0 L (3,968 cc or 242.1 cu in) all-alloy 1UZ-FE debuted in 1989 in the first generation Lexus LS 400/Toyota Celsior and the engine was progressively released across a number of other models in the Toyota/Lexus range. The engine is oversquare by design, with a bore size of 87.5 mm (3.44 in) and stroke of 82.5 mm (3.25 in).[1] It has proved to be a strong, reliable and smooth powerplant with features such as 6-bolt main bearings and belt-driven quad-camshafts. The water pump is also driven by the cam belt. The connecting rods and crankshaft are constructed of steel. The pistons are hypereutectic.
Its resemblance to a race engine platform (6 bolt cross mains and over square configuration) was confirmed in 2007 by David Currier (in an interview with v-eight.com), vice president of TRD USA, stating that the 1UZ platform was based on CART/IRL engine design. It was planned to be used on GT500 vehicles, however its subsequent use in the Daytona Prototype use was not planned.
In its standard, original trim with 10:1 compression, power output is 191 kW (256 hp), torque of 353 N·m (260 lb·ft).
The engine was slightly revised in 1995 with lighter connecting rods and pistons and an increased compression ratio to 10.4:1 resulting in peak power of 195 kW (261 hp) and torque of 363 N·m (268 lb·ft).
In 1997, Toyota's VVT-i variable valve timing technology was introduced along with a further compression ratio increase to 10.5:1, bumping power and torque to 216 kW (290 hp) and 407 N·m (300 lb·ft). In the GS400 application, output was rated at 300 hp and 310 lb·ft of torque.
The 1UZ-FE was voted to the Ward's 10 Best Engines list for 1998 through 2000.
Applications:
1989–2000 Lexus LS 400/Toyota Celsior
1990–2002 Toyota Crown/Toyota Crown Majesta
1991–2000 Lexus SC 400/Toyota Soarer
1992–2000 Lexus GS 400/Toota Aristo
Toyota MR2 Le Mans Car
2UZ-FE
The 2UZ-FE was a 4.7 L (4,664 cc or 284.6 cu in) version built in Tahara, Aichi, Japan and at Toyota Motor Manufacturing Alabama. Unlike its other UZ counterparts, this version uses a cast iron block to increase durability, as it was designed for low-reving, high-torque pickup and SUV applications. Its bore is 94 mm (3.7 in) and stroke is 84 mm (3.3 in). Output varies by implementation, but one VVT-i variant produces 202 kW (271 hp) at 4800 rpm with 427 N·m (315 lbf·ft) of torque at 3400 rpm. JDM versions produce 173 kW (232 hp) at 4800 rpm and 422 N·m (311 lbf·ft) at 3600 rpm, while Australian models produce 170 kW (230 hp) at 4800 rpm and 410 N·m (300 lbf·ft) at 3600 rpm.
Like the 1UZ-FE it has aluminum DOHC cylinder heads, MFI fuel injection, 4 valves per cylinder with bucket tappets, one-piece cast camshafts, and a cast aluminum intake manifold. For 2010, it was replaced by the 1UR-FE in all applications.
Applications:
2003–2004 Lexus GX 470
1998–2005 Lexus LX 470
1998–2005 Toyota Land Cruiser
2003–2004 Toyota 4Runner
2000–2004 Toyota Tundra
2001–2004 Toyota Sequoia
Toyota Racing Development offered a bolt-on supercharger kit for the 2000-2003 Tundra and the 2003 GX 470.
Another 2UZ-FE variation adds VVT-i and electronic throttle control.
Applications:
2005–2009 Lexus GX 470
2006–2007 Lexus LX 470
2005–2009 Toyota 4Runner
2006–2011 Toyota Land Cruiser
2005–2006 Toyota Tundra
2005–2009 Toyota Sequoia
3UZ-FE
The 3UZ-FE, is a 4.3 L (4,292 cc or 261.9 cu in) version built in Japan. Bore is 91 mm (3.6 in) and stroke is 82.5 mm (3.25 in). Output is 216 to 224 kW (290 to 300 hp) at 5600 rpm with 441 N·m (325 lb·ft) of torque at 3400 rpm. It has an aluminum engine block and aluminum DOHC cylinder heads. It uses SEFI fuel injection, has 4 valves per cylinder with VVT-i. In 2003, the engine was linked to a six-speed automatic in applications with improved fuel efficiency.
A 4.4L version replaced the 3S-GTE as the engine used in Toyota's 500 hp (370 kW) Super GT race cars up to 2009[citation needed] and a 5.0L version was used in the Grand American Road Racing (Grand Am) Series.
Applications:
Lexus LS 430
Lexus GS 430
Lexus SC 430/Toyota Soarer
Toyota Crown Majesta
Super GT
Toyota Supra GT500 Race Car
Lexus SC 430 GT500 Race Car
Derivatives
In 1997, the US Federal Aviation Administration granted production certification for the FV2400-2TC, a twin-turbocharged airplane powerplant based on the UZ series Lexus engine.The 360 hp (270 kW) FV2400 was developed in partnership with Hamilton Standard, which provided the digital engine-control system. The goal was to produce a four-seat propeller aircraft.
In 1998, a marine derivative of the UZ powerplant was produced for boating applications. The 4.0 L VT300i engine, producing 300 hp (220 kW) at 6000 rpm and 310 lbf·ft (420 N·m) at 4200 rpm, used the same block as the UZ engine on the Lexus SC 400, GS 400, and LS 400. The marine engine was used on the Toyota Epic waterski boat.

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VVTi 1UZ Comparison

LS400 — NEW FEATURES
Engine Control System
General
The engine control system has been changed from that of the ’97 LS400 in the areas described below.The VVT-i, ETCS-i, and ACIS systems have been adopted.
The cruise control system and the engine immobiliser system have been integrated with the ECM.
A function to communicate with the multiplex communication system has been added.
The engine control system of the 1UZ-FE engine in the ’98 LS400 and ’97 LS400 are compared below.
Main Components of Engine Control System
1) General
The following table compares the main components of the 1UZ-FE engine in the ’98 LS400 and ’97 LS400.
2) Mass Air Flow Meter
The hot wire type mass air flow meter has been changed to the plug-in type. Its basic operation is the same as that of the previous type.
3) Crankshaft Position Sensor
The timing rotor of the crankshaft position sensor has been changed from the previous 12 teeth tom 34 teeth, with 2 teeth missing. It detects the crankshaft angle at 10 intervals.
4) Camshaft Position Sensor
The camshaft position sensor is mounted on the left bank cylinder head. To detect the camshaft position, a protrusion that is provided on the timing pulley is used to generate 1 pulse for every 2 revolutions of the crankshaft.
5) VVT Sensor
A VVT sensor is mounted on the intake side of each cylinder head. To detect the camshaft position, a timing rotor that is provided on the intake camshaft is used to generate 3 pulses for every 2 revolutions of the crankshaft.
VVT-i (Valiable Valve Timing-intelligent) System
1) General
The VVT-i system is designed to control the intake camshaft within a wide range of 50° (of crankshaft angle) to provide a valve timing that is optimally suited to the engine condition, thus realizing improved torque in all the speed ranges and fuel economy, and exhust emissions.
2) Construction and Operation
a. VVT-i Controller
The VVT-i Controller comprises the outer gear that is driven by the timing belt, the inner gear that is affixed to the camshaft and a movable piston that is placed between the outer gear and inner gear.
Having helical splines (twisted, vertical grooves) on its inner and outer periphery, the piston moves in the axial direction to shift the phase of the outer gear and inner gear, thus causing the valve timing to change continuously.
b. Camshaft Timing Oil Control Valve
The camshaft timing oil control valve controls the spool valve position in accordance with the command of the ECM thus allocating the hydraulic pressure that is applied to the intake camshaft timing pulley to the advance and the retard side. When the engine is stopped, thecamshaft timing oil control valve is in the most retarded state.
By the command of the ECM, when the camshaft timing oil control valve is in the position given in Fig. 1, hydraulic pressure is applied from the left side of the piston, which causes the piston to move to the right. Because of the twist in the helical splines that are cut out in the piston, the intake camshaft rotates in the advance direction in relation to the camshaft timing pulley. When the camshaft timing oil control valve is in the position given in Fig. 2, the piston moves to the left and rotates in the retard direction. Furthermore, the camshaft timing oil control valve shuts off the oil passages to maintain the hydraulic pressure at both sides of the piston, thus maintaining the phase at that position. This enables the phase to be set to a desired position.
c. ECM
In proportion to the engine speed, intake air volume, throttle position and coolant temperature, the ECM searches an optimal valve timing under each driving condition and control the camshaft timing oil control valve. In addition, the ECM uses signal from the VVT sensors and the crankshaft position sensor to detect the actual valve timing, thus performing feedback control to achieve the target valve timing.
ETCS-i (Electronic Throttle Control System-intelligent)
1) General
The ETCS-i system, which realizes excellent throttle control in all the operating ranges, has been adopted.
In the conventional throttle body, the throttle valve opening is determined invariably by the amount of the accelerator pedal effort. In contrast, the ETCS-i uses the ECM to calculate the optimal throttle valve opening that is appropriate for the respective driving condition and uses a throttle control motor to control the opening.
The ETCS-i controls the ISC (Idle Speed Control) system, the cruise control system, and the VSC (Vehicle Skid Control).
A duplicate system is provided to ensure a high level of reliability, and the system shuts off in case of an abnormal condition. Even when the system is shut off, the accelerator pedal can be used to operate the vehicle in the limp mode.
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Tell Us Your Online Repair Manuals Story!

It’s not everyday you get to hear about how online auto repair manuals have saved a person’s life (whether it’s in the literal or figurative sense). That is why we’re asking you for your stories that revolve around online car repair manuals!

It can be a loose anecdote that summarizes your experience dealing with car problems using your trusted online repair manual, a funny experience, some tips and tricks you might want to share regarding an online auto repair manual service, the works—there’s no holding back here.

If you want to share something, don’t hesitate to drop us a line by using the comments section. Commenting on any post will do, although preferably you will comment on this one.

So start typing those online auto repair manual stories now and get ready for the whole world to know your story!

Cars Need Checkups, Too

I almost forgot that it was our company’s APE today. APE means Annual Physical Examination, which is the company’s way of ensuring it employs people who are well and healthy.

As I was getting all sorts of examinations done—blood chemistry, eye or vision tests, X-rays, the whole gamut—I realized that we are quite similar to cars in this way. People are just like cars, and vice versa. Once in a while, we need to be checked up on—much like the routine periodic maintenance of cars. Every so often, we need to be “fixed,” and so do cars.

While going through the entire APE process, I also thought that there are still many who don’t go out and do the necessary preventive maintenance on their cars. It’s like a physical exam; you check to see if everything’s in great shape, so you can also detect if there’s anything wrong. This way, you can do something about it before it becomes a pain in the butt.

So go check your online repair manuals now and see when your ride is due for its next “checkup.” Your precious ride needs that kind of care and attention so that you can always ensure that it is at its best condition. You’ll enjoy it more if you take care of it properly.

November Post Roundup

It’s already December! It’ll be Christmas in a few weeks, and we hope you’re already starting to get accustomed to the chilly weather and that you’ve begun preparations to make the season warmer. Anyway, since it’s a new month, let’s have a roundup of our previous posts this past month, just in case you’ve missed some of our tidbits about online auto repair manuals.

Auto Repair is Made Easy Thanks to Online Auto Repair Manuals

This post basically outlines how online car repair manuals, especially those free manuals, can really help make auto repair easier for car enthusiasts and DIY beginners

Online Auto Repair Manuals Save the Day

How my friend Jerome encountered a relatively baffling issue from his Nissan Pathfinder’s AC blower—and how searching for a free online auto repair manual saved the day. There’s a lesson here somewhere about how being specific on your searches can lead to great results.


Online Repair Manuals: Google Tips

In this post, we give a few tips and tricks on how to refine your search and modify the results to suit your needs, as well as how to get better resources out of each Google search.

Online Auto Repair Manual Reviews: Haynes and Online Auto Repair Manual Reviews: Chilton

Take a look at Repair Manuals Online’s take on a couple of the more prominent online car repair manuals. We’re hoping to get more reviews done in the next month, so watch out for those as well!



We’ve got loads more waiting for you in December, so make sure to bookmark the blog and check back often. Additionally, if your partner loves cars and wants to start working on his or her ride, then you can always subscribe him or her to an online repair manual for Christmas. Now that’s a unique gift idea!