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Home >> Geo >> 1990 >> Storm Base, Standard >> Repair and Diagnosis >> Body & Frame >> Headlight Doors >> Component Tests >> Head Lamp Switch

Head Lamp Switch

  1. Disconnect the negative (-) battery cable.
  2. Remove the meter hood. See METER HOOD  under REMOVAL & INSTALLATION.
  3. Remove the meter cluster bezel from the meter hood. See Fig 1 .
    Fig 1: Removing Meter Cluster Bezel From Meter Hood
    G00156954Courtesy of GENERAL MOTORS CORP.
  4. Remove the 2 clips attaching the head lamp control harness. Loosen the 4 screws attaching the head lamp control switch.
  5. Remove the head lamp control switch with the illumination bulb. See Fig 2 . Refer to wiring codes, see HEAD LAMP CONTROL SWITCH WIRING  .
    Fig 2: Removing Head Lamp Control Switch With Illumination Bulb
    G00156955Courtesy of GENERAL MOTORS CORP.
  6. Using the J 34029-A Digital Multimeter, perform the continuity check. See Fig 3 and Fig 4 . If continuity is not as specified, replace the combination switch.
    HEAD LAMP CONTROL SWITCH WIRING

    No. Color & Size Connection Place
    1 0.5 Green/Red Illumination Controller
    2 0.5 Red/Black Relay: Lighting
    3 0.5 Black Ground
    4 0.85 Red/White Fuse No. C-15
    5 0.85 Green/Red Tail Lamps
Fig 3: Identifying Lamp Switch Terminal Connectors
G00156953Courtesy of GENERAL MOTORS CORP.
Fig 4: Testing Head Lamp Control Switch Continuity
G00156956Courtesy of GENERAL MOTORS CORP.