AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Cadillac - P0A03 Cadillac

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

- Code Popularity: 841 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Feb 22, 2020
Share on Facebook   Share on Twitter   Share on Linkedin

|Code P0A03 Cadillac 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 do I Fix the Code P0A03 Cadillac?

Check 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.

Does your Cadillac have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P0A03 Cadillac?

Labor: 1.0

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

|What are Code P0A03 Cadillac Possible Symptoms?

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

|Code P0A03 Cadillac Description

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.

OBDII Code P0A03 Cadillac - Starter/Generator Control Module Coolant Temperature Sensor 1 Circuit High Voltage - AutoCodes.com
P0A03 Cadillac Code - Starter/Generator Control Module Coolant Temperature Sensor 1 Circuit High Voltage

|Need More Information on the P0A03 Cadillac Code?

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

|Need Help with the P0A03 Cadillac Code?

Get the P0A03 Cadillac code diagnosed by a professional: Find a repair shop in your area

|Code P0A03 Cadillac comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0A03 Cadillac code? Have you replaced any parts?
Any information is appreciated. Thanks