Toyota Yaris air conditioning light on with malfunctioning turn indicators and reverse lights on Toyota Yaris

Submitted by vodloza · Jun 23, 2025
Published by RepairPal

Problem overview

Some Toyota Yaris owners report experiencing issues when the air conditioning light is on, accompanied by malfunctioning turn indicators and reverse lights. These problems may stem from a malfunctioning compressor speed sensor, which can cause a blinking light on the dashboard. Additionally, electrical system faults, such as switch failures, bad control modules, or harness damage at the AC compressor, can lead to these symptoms and affect other electrical components. Furthermore, some owners find that a blinking AC light indicates power supply problems, suggesting the system is not receiving enough power, which may impact the functionality of other electrical systems in the vehicle. It is recommended that owners have their Toyota Yaris inspected by a professional to effectively diagnose and resolve these electrical issues.

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Toyota Yaris vehicles with this problem

1 model year affected
Average mileage: 170,000 miles
(170,000 - 170,000)

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