Toyota Sienna Service Manual: Terminals of ECU
1. Instrument Panel Junction Block Assembly
Problem symptoms table
HINT:
Proceed to troubleshooting of each circuit in the table below.
1. HEADLIGHT AND TAIL LIGHT SYSTEM
2. AUTOMATIC LIGHT CONTROL SYSTEM
3. LIGHT AUTO TURN OFF SYSTEM
4. FOG LIGHT SY ...
DTC check / clear
1. USING INTELLIGENT TESTER
Hook up the intelligent tester to the DLC3.
Monitor the ECU data by following the prompts on
the tester screen.
HINT:
intelligent tester has "S ...
Other materials:
If your vehicle needs to
be towed
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
2WD models: If towing your vehicle ...
System description
1. SYSTEM DESCRIPTION
(a) ABS
(Anti-lock Brake System)
The ABS helps prevent wheels from locking when
the brake is applied firmly or when braking on a
slippery surface.
(b) EBD
(Electronic Brake force Distribution)
The EBD control utilizes ABS, realizing proper
brake force distribution betw ...
Yaw rate sensor check (when using intelligent tester)
(a) Check the output of the yaw rate sensor.
(1) Move the shift lever to the D position, drive the
vehicle at a speed of approximately 5 km/h (3
mph), and turn the steering wheel either to the
left or right 90° or more until the vehicle makes a
180° turn.
(2) Stop the vehicle and mov ...
