AutoCodes – Saturn – P1A6C Saturn

P1A6C Saturn Code - SGCM Service Calibration Fault

Quick Answer

The internal fault detection is handled inside the control module. Common causes include Starter Generator Control Module (SGCM) Program, Faulty Starter Generator Control Module (SGCM), Starter Generator Control Module (SGCM) harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1A6C Saturn indicates SGCM Service Calibration Fault.
Common causes: Common causes include Starter Generator Control Module (SGCM) Program, Faulty Starter Generator Control Module (SGCM), Starter Generator Control Module (SGCM) harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,114

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1A6C Saturn Description

The internal fault detection is handled inside the control module. No external circuits are involved. This code indicates that the Energy Storage Control Module (ESCM), Starter Generator Control Module (SGCM) or Heating Control Module (HCM) has not yet been programmed with latest production software.

OBDII Code P1A6C Saturn - SGCM Service Calibration Fault - AutoCodes.com — P1A6C Saturn Code - SGCM Service Calibration Fault

What does this mean?

What are the Possible Causes of the DTC P1A6C Saturn?

Starter Generator Control Module (SGCM) Program
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 to Fix the DTC P1A6C Saturn?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1A6C Saturn code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1A6C Saturn code?

Need more information on how to fix the P1A6C Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1A6C Saturn code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1A6C Saturn Code

1. What does the OBDII code P1A6C on a Saturn mean?

The P1A6C code indicates a "SGCM Service Calibration Fault," which refers to an issue with the Service Generator Control Module's calibration or programming.

2. What are common symptoms of P1A6C on a Saturn vehicle?

Symptoms may include the check engine light being illuminated, reduced power mode activation, poor fuel efficiency, or issues with the hybrid or electrical system if applicable.

3. What causes the P1A6C code to appear?

The code is typically caused by corrupted or incomplete software calibration in the SGCM, faulty SGCM hardware, or issues with related wiring or connectors.

4. Can a low battery cause the P1A6C code?

Yes, low voltage or a weak battery can potentially disrupt the SGCMâ€™s operation and trigger this code.

5. How is the P1A6C code diagnosed?

A technician will use a scan tool to verify the code, check the SGCM for proper software calibration, inspect the wiring and connectors, and test the system voltage to identify the root cause.

6. Can I still drive with the P1A6C code active?

Itâ€™s not recommended, as the issue may cause reduced performance, further damage to the SGCM or other components, and potential safety concerns.

7. How do you fix the P1A6C code on a Saturn vehicle?

Repairs may involve reprogramming or updating the SGCM, repairing wiring or connector issues, or replacing the SGCM if it is faulty.

8. Is the P1A6C code specific to Saturn hybrid vehicles?

Yes, this code is often associated with Saturn hybrid models, as the SGCM typically manages the hybrid powertrain or generator system.

9. How much does it cost to fix the P1A6C code?

Repair costs can vary widely, from $100 for software updates to $1,000 or more if the SGCM needs replacement.

10. Can a DIYer fix the P1A6C code on a Saturn?

While basic inspections like checking battery voltage or connectors can be done by a DIYer, reprogramming or replacing the SGCM usually requires specialized tools and expertise.