Toyota Sienna Service Manual: Engine immobiliser

Security horn assembly

INSPECTION 1. INSPECT SECURITY HORN ASSEMBLY  Check operation of the horn. Standard If the result is not a ...

Engine immobiliser system

PARTS LOCATION SYSTEM DESCRIPTION The engine immobiliser system has been designed to prevent the vehicle from being stolen. This system uses a transponder key ECU that stores the key code of t ...

Other materials:

Knock sensor
COMPONENTS REMOVAL 1. DISCHARGE FUEL SYSTEM PRESSURE (See page FU-13) 2. REMOVE V-BANK COVER SUB-ASSEMBLY (See page EM-28) 3. DRAIN ENGINE COOLANT (See page CO-6) 4. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY HINT: (See page WW-4) 5. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY ( ...

Diagnosis system
1. CHECK DLC3 The ECU uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not ope ...

Back-up Power Source Circuit
DESCRIPTION This is the back-up power source for the A/C amplifier. Power is supplied even when the ignition switch is off and is used for diagnostic trouble code memory, etc. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT FUSE (ECU-B) (a) Remove the ECU-B fuse from the engine room juncti ...