Toyota Sienna Service Manual: Diagnosis system
1. CHECK DLC3
- The vehicle uses ISO 15765-4 communication
protocol.
The terminal arrangement of the DLC3 complies with SAE 1962 and matched the ISO 15765-4 format.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
Terminals of ECU
1. FOLD SEAT CONTROL ECU LH
Disconnect the fold seat control ECU connectors.
Measure the voltage and resistance of the wire
harness side connectors.
If the result is not as specifie ...
On-vehicle inspection
1. CHECK POWER REAR NO. 2 SEAT with STOWING FUNCTION
Check the basic functions.
Operate the fold seat switch and power rear
No.2 seat switch and check to make sure each
seat ...
Other materials:
Zero Point Calibration of Yaw Rate Sensor Undone
DESCRIPTION
The skid control ECU receives signals from the yaw rate sensor via CAN
communication system.
Yaw rate sensor has the built-in deceleration sensor.
If there is trouble in the bus lines between the yaw rate and deceleration
sensor and CAN communication
system, the DTC U0123 ...
How to proceed with
troubleshooting
HINT:
Use this procedure to troubleshoot the front power seat
control system.
The intelligent tester should be used in steps 3 and 5.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND PROBLEM SYMPTOM CHECK
3 CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNI ...
Short to B+ in Front Passenger Side Squib Circuit
DTC B0108/52 Short to B+ in Front Passenger Side Squib Circuit
DESCRIPTION
The front passenger side squib circuit consists of the center airbag sensor
assembly and the front
passenger airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0108/52 ...
