Test Description

The number below refers to the step number on the diagnostic table.

1. 3. This step tests for the proper operation of the circuit in the low voltage range.
   Fig 1: DTC P0523 Engine Oil Pressure Sensor Changes Resistance - Diagnostic Table (Steps 1 - 4)

   Courtesy of GENERAL MOTORS CORP.
   Fig 2: DTC P0523 Engine Oil Pressure Sensor Changes Resistance - Diagnostic Table (Steps 5 - 11)

   Courtesy of GENERAL MOTORS CORP.