Toyota Sienna Service Manual: Ignition system
Parts location
System diagram
Engine
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Ignition coil and spark plug
Components
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Other materials:
Meter Illumination is Always Dark
DESCRIPTION
Confirm that the vehicle is equipped with the optitron meter, then
check this circuit.
The combination meter assembly receives a auto dimmer signal from the
body ECU by the multiplex
communication line.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MULTIPLEX CO ...
How to proceed with
troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
3 CHECK AND CLEAR DTCs
Refer to the diagnostic check/clear
4 PROBLEM SYMPTOM CONFIRMATION
5 SYMPTOM SIMULATION
6 CHECK DTC
7 CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM
Refer to the navigation system
8 PROBLE ...
PBD Pulse Sensor Malfunction
DTC B2222 PBD Pulse Sensor Malfunction
DESCRIPTION
A pulse sensor is built into the back door for a jam and foreign
object detection and for back door
position detection. The jam and foreign object detection feature of the
pulse sensor monitors the
operating speed of the back door whi ...
