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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Lighting Systems) >> Diagnostic Information and Procedures >> Front Fog Lamps Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Headlamp Switch

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for infinite resistance between the signal circuit terminal 6 and the ground circuit terminal 8 with the switch in the open position.
    • If not the specified value, replace the headlamp switch.
  3. Test for less than 2.0 ohms of resistance between the signal circuit terminal 6 and the ground circuit terminal 8 with the switch in the closed position.
    • If greater than the specified range, replace the headlamp switch.
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