Test Description

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

3. Tests for the proper operation of the circuit in the low voltage range.
4. Tests for the proper operation of the circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
5. Tests for a short to voltage in the 5-volt reference circuit.
6. Tests for a high resistance or an open in the low reference circuit.

Fig 1: DTC P0530 Diagnosis Procedure (Step 1 To 4)
Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P0530 Diagnosis Procedure (Step 5 To 14)
Courtesy of GENERAL MOTORS CORP.

Fig 3: DTC P0530 Diagnosis Procedure (Step 15 To 16)
Courtesy of GENERAL MOTORS CORP.