Fog light issue for Lexus is250 2015
08-25-21, 04:44 AM
#2
Lexus Test Driver
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Location: Richmond Hill, Ontario, Canada
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There is no Fog light fuse or relay.
When you turn the Fog light switch on the light stalk on/off, that sends a signal to the Main Body ECU, which sends a signal to the Semiconductor Power Integration ECU under the hood, which sends power to the Fog lights...or stops sending power when you want them off.
In this setup there is no dedicated fuse or relay for the Fog lights.
I'm going to guess that if your Fog lights aren't turning off, that they are not OEM Fog lights?
When you turn the Fog light switch on the light stalk on/off, that sends a signal to the Main Body ECU, which sends a signal to the Semiconductor Power Integration ECU under the hood, which sends power to the Fog lights...or stops sending power when you want them off.
In this setup there is no dedicated fuse or relay for the Fog lights.
I'm going to guess that if your Fog lights aren't turning off, that they are not OEM Fog lights?
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