Toyota Sienna Service Manual: Air conditioning system (for manual air conditioning system)

Back-up Power Source Circuit

DESCRIPTION This is the back-up power source for the A/C amplifier. Power is supplied even when the ignition switch is off and is used for diagnostic trouble code memory, etc. WIRING DIAGRAM ...

Precaution

NOTICE: Because the compressor operates at high voltages, wear electric insulated gloves and pull out the service plug to cut the high-voltage circuit before inspection. 1. DO NOT HANDLE REFRIGERA ...

Other materials:

Radio Receiver Communication Error
INSPECTION PROCEDURE 1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode Press the preset switch "3" to change to "Detailed Information Mode".  Identify the component shown by the sub-code. HINT:  "190 (radio receiver) ...

Diagnosis system
1. DIAGNOSIS FUNCTION  The diagnosis function makes the light and the multi-information display come on, and the CRUISE main indicator light blink as shown in the illustration. When a malfunction occurs in the dynamic laser cruise control system, the DTCs are stored in the ECM ...

Radar Sensor Malfunction
DTC P1570 Radar Sensor Malfunction DESCRIPTION The laser sensor emits laser beams towards an object in front and measures the distance and direction of the object by receiving the beam reflections. Based on the reflections, the sensor calculates the difference in speed between your own vehic ...