Toyota Sienna Service Manual: Security horn assembly

Engine hood courtesy switch

Inspection 1. INSPECT ENGINE HOOD COURTESY SWITCH  Measure the resistance according to the value(s) in the table below. Standard resistance If the result is not as specified, r ...

Engine immobiliser

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Other materials:

Disassembly
1. REMOVE BACK DOOR GARNISH CENTER Using a clip remover, disengage the 5 clips and remove the garnish center. 2. REMOVE BACK DOOR SIDE GARNISH LH Using a clip remover, disengage the 3 clips and remove the side garnish. 3. REMOVE BACK DOOR SIDE GARNISH RH Using a clip remove ...

Rear Air Mix Damper Position Sensor Circuit
DESCRIPTION This sensor detects the position of the rear air mix control servo motor (water valve servo motor) and sends the appropriate signals to the A/C amplifier. The position sensor is built in the rear air mix control servo motor (water valve servo motor). The position sensor's r ...

ECM / PCM Processor
DESCRIPTION The ECM continuously monitors its internal processors (CPUs), A/F sensor transistors and heated oxygen sensor (HO2S) transistors. This self-check ensures that the ECM is functioning properly. These are diagnosed by internal "mirroring" of the main and sub CPUs to det ...