Toyota Sienna Service Manual: Terminals of ECU

Problem symptoms table

HINT: Proceed to the troubleshooting for each circuit in the table below. Occupant Classification System Symptom Suspected area The front passenger seat condition differ ...

Diagnosis system

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

Other materials:

Vehicle Speed Signal Error (Test Mode DTC)
DTC C2191/91 Vehicle Speed Signal Error (Test Mode DTC) DESCRIPTION The tire pressure warning ECU receives a speed signal from the combination meter. This DTC is stored upon entering test mode, and cleared when a vehicle speed signal of 12 mph (20 km/h) is detected for 3 seconds or more. Thi ...

Disassembly
1. REMOVE CENTER CLUSTER MODULE KNOB NO.1 (for Manual Air Conditioning System) (a) Remove the center cluster module knob No. 1. 2. REMOVE CENTER CLUSTER MODULE KNOB NO.2 (for Manual Air Conditioning System) (a) Release the 2 claws fittings and remove the center cluster module knob No ...

Installation
1. INSTALL FRONT SEAT ASSEMBLY LH  Place the seat assembly in the cabin. NOTICE: Be careful not to damage the body.  Connect the connectors under the seat assembly.  Tighten the 2 bolts on the front side of the seat assembly. Torque: 37 N*m (375 kgf*cm, 27 ft.*lb ...