Toyota Sienna Service Manual: Horn system

Horn

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Horn relay

INSPECTION 1. INSPECT HORN RELAY  Remove the horn relay from the instrument panel J/ B.  Measure the horn relay continuity. Standard ...

Other materials:

Back Sonar Sensor RH 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 ...

Air Mix Damper Position Sensor Circuit (Passenger Side)
DESCRIPTION This sensor detects the position of the air mix control servo motor (air mix damper) and sends the appropriate signals to the A/C amplifier. The position sensor is built in the air mix control servo motor. The position sensor's resistance changes as the air mix control servo m ...

Fail-safe chart
If any of the following DTCs are set, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily. HINT:  *1: The vehicle can be driven slowly when the accelerator pedal is depressed firmly and slowly. If the accelerator pedal is depressed quickly, the vehicle may ...