Toyota Sienna Service Manual: Terminals of ECU

Problem symptoms table

HINT: Proceed to the troubleshooting for each circuit in the table below. AIRBAG SYSTEM Symptom Suspected Area The SRS warning light goes off after the primary check, ...

Diagnosis system

1. CHECK DLC3  The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. NOTICE: *: Before ...

Other materials:

Random / Multiple Cylinder Misfire Detected
DESCRIPTION When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. High HC concentration levels can cause increase in exhaust emission levels. Extremely high concentrations of HC can also cause increases in the Three-Way Catalytic Converter (TWC) tem ...

On-vehicle inspection
1. INSPECT REAR AIRBAG SENSOR (VEHICLE NOT INVOLVED IN COLLISION)  Perform a diagnostic system check. 2. INSPECT REAR AIRBAG SENSOR (VEHICLE INVOLVED IN COLLISION AND AIRBAG HAS NOT DEPLOYED)  Perform a diagnostic system check.  When the quarter panel of the vehicle or ...

Removal
1. DRAIN BRAKE FLUID NOTICE: Wash brake fluid off immediately if it adheres to any painted surface. 2. DISCONNECT BATTERY NEGATIVE TERMINAL 3. REMOVE AIR CLEANER ASSEMBLY WITH HOSE 4. REMOVE BRAKE ACTUATOR WITH BRACKET (a) Release the latch of the brake actuator connector to disconnect t ...