Toyota RAV4 manuals

Toyota Sienna Service Manual: System description

1. SYSTEM DESCRIPTION

(a) ABS

(Anti-lock Brake System) The ABS helps prevent wheels from locking when the brake is applied firmly or when braking on a slippery surface.

(b) EBD

(Electronic Brake force Distribution) The EBD control utilizes ABS, realizing proper brake force distribution between front and rear wheels in accordance with driving conditions. In addition, during cornering braking, it also controls the brake force of the right and left wheels, helping to maintain vehicle behavior.

(c) BA (Brake Assist)

The primary purpose of the brake assist system is to provide an auxiliary brake force to assist the driver who cannot generate a large enough brake force during emergency braking, thus helping to maximize the vehicle's brake performance.

(d) TRAC

(Traction Control) The TRAC system helps prevent the drive wheels from slipping if drive presses down on the accelerator pedal excessively when starting off or accelerating on a slippery surface.

(e) VSC

(Vehicle Stability Control) The VSC system helps prevent the vehicle from slipping sideways as a result of strong front wheel skid or strong rear wheel skid during cornering.

Vehicle stability control system
Parts location ...

How to proceed with troubleshooting
The intelligent tester can be used at step 2, 5, 8, 11. 1 Vehicle Brought to Workshop 2 Check and Clear DTCs and Freeze Frame Data HINT: See page BC-82 and BC-84. 3 Problem Symptom Confirmati ...

Other materials:

Disassembly
1. INSPECT OIL PUMP ASSEMBLY HINT: (See page AX-234) 2. REMOVE CLUTCH DRUM OIL SEAL RING (a) Remove the 2 clutch drum oil seal rings. 3. REMOVE STATOR SHAFT ASSEMBLY (a) Using a "torx" socket (T30), remove the 11 bolts and stator shaft. 4. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY ...

Center Airbag Sensor Assembly Communication Circuit Malfunction
DTC B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction DESCRIPTION The center airbag sensor assembly communication circuit consists of the occupant classification ECU and the center airbag sensor assembly. DTC B1790 is recorded when a malfunction is detected in the center ...

Installation
1. INSTALL ENGINE OIL COOLER (a) Clean the oil cooler contact surface on the cooler mounting. (b) Install a new O-ring to the oil cooler. (c) Install the oil cooler assembly with the union bolt. Torque: 68 N*m (693 kgf*cm, 50 ft.*lbf) Install the 2 water by-pass hoses with the bolt ...

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