Engine-Codes - Saturn - P0A03 SATURN

P0A03 SATURN Code - Starter/Generator Control Module Coolant Temperature Sensor 1 Circuit High Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|P0A03 SATURN code possible causes

  • Faulty Starter/Generator Control Module (SGCM)
  • Starter/Generator Control Module (SGCM) harness is open or shorted
  • Starter/Generator Control Module (SGCM) circuit poor electrical connection

|How is the P0A03 SATURN code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the P0A03 SATURN code

Labor: 1.0

The cost to diagnose the P0A03 SATURN code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0A03 SATURN code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What is P0A03 SATURN code meaning?

The Starter/Generator Control Module (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 thermistors 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.

|Need more information with the P0A03 SATURN code?

Need more information on how to fix the P0A03 SATURN code?
Get Access to Factory Service Manuals

|Need help with a P0A03 SATURN code?

Get the P0a03 Saturn code diagnosed by a professional: Find a repair shop in your area