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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1022 (ENGINE COOLING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0A01, P0A02, P0A03, P1A7A, P1A75, P1A76, P1A77, P1A78, OR P1A79: ENERGY STORAGE CONTROL MODULE (ESCM) INTERNAL MALFUNCTIONCIRCUIT DESCRIPTION
2004 Oldsmobile Bravada RWD

Circuit Description

2004 Oldsmobile Bravada RWDSECTION Circuit Description
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The following DTCs are for the internal fluid temperature sensors located internal to the starter/generator control module (SGCM):

  • P0A01 is for the internal fluid temperature sensor 1 performance.
  • P0A02 is for the internal fluid temperature sensor 1 high temperature.
  • P0A03 is for the internal fluid temperature sensor 1 low temperature.
  • P1A7A is for the internal fluid temperature sensor 3 low temperature.
  • P1A75 is for the internal fluid temperature sensor 2 performance.
  • P1A76 is for the internal fluid temperature sensor 2 high temperature.
  • P1A77 is for the internal fluid temperature sensor 2 low temperature.
  • P1A78 is for the internal fluid temperature sensor 3 performance.
  • P1A79 is for the internal fluid temperature sensor 3 high temperature.

The SGCM monitors its internal fluid temperature sensors to control the SGCM coolant pump and SGCM cooling fan. The internal fluid temperature sensors of the SGCM are thermostats and are not serviceable. When the internal fluid temperatures are cold, the resistances of the sensors are high and the voltage signals are high. When the internal fluid temperatures are hot, the resistances of the sensors are low and the voltage signals are low. The input parameters are not displayed on the scan tool.

RENDER: 1.0x

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