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Home >> Oldsmobile >> 1991 >> Custom Cruiser >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System - Automatic >> Trouble Shooting >> Code 07 Or Code 08 - Open Or Shorted SUNLOAD Sensor Circuit >> Parameter Count Check

Parameter Count Check

  1. Check parameter counts for sunload sensor circuit, while varying light directed at sunload sensor. See PARAMETER DIAGNOSTIC MODE under RETRIEVING CODES.
  2. If parameter counts vary with light intensity, replace sensor. If parameter counts do not vary with light intensity, repair short in Light Blue/Black wire between A/C control unit and sensor. If no short is found, replace sensor.
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