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Circuit/System Verification

WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, observe the scan tool dimming potentiometer while turning the dimmer switch from dim to bright. The reading should change between 0.6 to 4.5 volts.

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