Toyota Sienna Service Manual: Horn

Indicator Circuit

DESCRIPTION The indicator displays the location of the obstacle and the approximate distance between the vehicle and the obstacle either by blinking or turning on. WIRING DIAGRAM INSPECTION ...

Horn system

PARTS LOCATION PROBLEM SYMPTOMS TABLE HORN SYSTEM ...

Other materials:

Terminals of ECU
1. CHECK TRANSPONDER KEY AMPLIFIER Disconnect the I14 amplifier connector and measure the resistance between the terminal of the wire harness side connector and body ground. If the result is not as specified, there may be a malfunction on the wire harness side.  Reconnec ...

Camshaft Position "B" Actuator Circuit
DESCRIPTION The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT controller. The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil pressure supplied to the VVT controller. Camshaft timing control is performed according to engine ...

Communication Error from ECM to Distance Control ECU
DTC P1616 Communication Error from ECM to Distance Control ECU DTC U0100 Lost Communication with ECM/PCM "A" DESCRIPTION The ECM receives signals from each sensor and ECU, then sends signals such as A/T signals, cruise control operation signals, low speed operation signals, brake co ...