Toyota Sienna Service Manual: Diagnostic trouble code chart
If a trouble code is displayed during the DTC check, check the trouble areas listed for that code in the table below and proceed to the appropriate page.
Dynamic Laser Cruise Control System:
- Vehicle Speed Sensor Malfunction
- Brake Switch "A" Circuit
- Stop Light Switch Circuit Malfunction
- Control Module Performance
- Radar Sensor Malfunction
- Improper Aiming of Radar Sensor Beam Axis
- Warning Buzzer Malfunction
- Brake System Malfunction
- Communication Error from Distance Control ECU to ECM
- Communication Error from ECM to Distance Control ECU
- Distance Control ECU Malfunction
- Communication Error from VSC to ECM
- Communication Error from ECM to VSC
- Communication Error of Yaw Rate Sensor
- Lost Communication with Steering Angle Sensor Module
- Lost Communication with Cruise Control Front Distance Range Sensor
- Lost Communication with Radar Sensor
- Cruise Control Switch Circuit
- Distance Control ECU Power Source Circuit
- Distance Control Switch Circuit
- Laser Sensor Power Source Circuit
- Wiper Signal Circuit
- Washer Signal Circuit
- Cruise Main Indicator Light Circuit
- TC and CG Terminal Circuit
Data list / active test
1. READ DATA LIST
HINT:
Using the intelligent tester to read the Data List allows
the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This
...
Vehicle Speed Sensor Malfunction
DTC P0500 Vehicle Speed Sensor Malfunction
DTC P0503 Vehicle Speed Sensor "A" Intermittent / Erratic /
High
DESCRIPTION
The cruise control system uses the same vehicle speed signal that ...
Other materials:
SM Solenoid Circuit
DTC C1225/25 SM Solenoid Circuit
DESCRIPTION
This solenoid turns on when receiving signals the ECU and controls the
pressure acting on the wheel
cylinders to control the braking force.
WIRING DIAGRAM
Refer to DTCs C0226/21, C0236/22, C0246/23 and C0256/24 (See page BC-105).
INSPECTION PR ...
Disassembly
1. REMOVE REAR NO. 2 SEAT COVER BEZEL
Remove the 5 screws.
Disengage the 5 claws and remove the rear No. 2
seat cover bezel.
2. REMOVE REAR SEAT RECLINING COVER LH
Remove the 2 screws.
Disengage the claw and remove the rear seat
reclining cover LH.
...
Rear Clearance Sonar Sensor LH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and
sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PR ...