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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 843 (HVAC Systems - Automatic) >> Diagnostic Information and Procedures >> DTC B0183 or B0188: Sunload Sensor Signal Counts >> Test Description

Test Description

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The numbers below refer to the step numbers on the diagnostic table.

  1. 2. Verifies that the value displayed is within the specified range.
  2. 3. Tests for the proper operation of the circuit in the high voltage range.
  3. 4. Tests for the proper operation of the circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.
    Fig 1: DTC B0183 Or B0188 Diagnosis Procedure (Step 1 To 3)
    G01454746Courtesy of GENERAL MOTORS CORP.
    Fig 2: DTC B0183 Or B0188 Diagnosis Procedure (Step 4 To 12)
    G01454747Courtesy of GENERAL MOTORS CORP.

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