Toyota Sienna Service Manual: Problem symptoms table

Customize parameters

1. Seat Belt Buzzer ON/OFF Setting The seat belt buzzer ON/OFF setting, which is a setting of the buzzer function of the combination meter, can disable the driver side seat belt buzzer and front p ...

Terminals of ECU

1. COMBINATION METER ASSEMBLY *1: with Power Rear No. 2 Seat with Stowing Function *2: with Theft Deterrent System  Waveform 1 (Reference) : Using an oscilloscope: OK ...

Other materials:

Basic repair hint
(a) HINTS ON OPERATIONS BASIC REPAIR HINT 1 Attire • Always wear a clean uniform. • Hat and safety shoes must be worn. 2 Vehicle protection Prepare a grille cover, fender cover, seat cover and floor mat before starting the operation. 3 ...

Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the engine from starting if a key has not been previously registered in the vehicle’s on-board computer. Never leave the keys inside the vehicle when you leave the vehicle. This system is designed to help prevent vehicle the ...

Key Lock-in Prevention Function does not Work Properly (Manual Operation and Operation Interlocked with Key are Active)
DESCRIPTION The un-lock warning switch turns ON when the key is inserted in the ignition key cylinder. The courtesy light switch turns ON when the driver side door is opened. These 2 switches are monitored by the body ECU. In order to prevent the key from being locked in, the body ECU cont ...