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Component Testing

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.

Dimmer Switch Test

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for 0.0 to 5.0K ohms between the signal terminal 14 and the low reference terminal 3 while rotating the dimmer switch from high to low.
    • If not the specified value, replace the headlamp switch.
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