Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2006 >> TrailBlazer 6.0 H, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2575 >> Component Testing >> Headlamp Switch Testing

Headlamp Switch Testing

WARNING: This page is about a different car, the 2007 Pontiac Torrent and 2007 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for infinite resistance between the signal terminal and the voltage supply terminal with the switch in the open position.
    • If less than infinite resistance, replace the headlamp switch.
  3. Test for less than 1.5 ohms between the signal terminal and the voltage supply terminal with the switch in the closed position.
    • If greater than 1.5 ohms, replace the headlamp switch.
scientia non olet · About Mike's Workshop Manuals