AutoCodes – Generic – P1A6C

P1A6C 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 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 1,010

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

What does this mean?

What are the Possible Causes of the DTC P1A6C?

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?

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 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 code?

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

Need Help with the Code?

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

Information for Specific Makes

P1A6C Buick — SGCM Service Calibration Fault
P1A6C Cadillac — SGCM Service Calibration Fault
P1A6C Chevrolet — SGCM Service Calibration Fault
P1A6C GMC — SGCM Service Calibration Fault
P1A6C Saturn — SGCM Service Calibration Fault

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 Code

1. What are common symptoms of OBDII code P1A6C (SGCM Service Calibration Fault)?

- Common symptoms include poor vehicle performance, decreased fuel efficiency, and potential issues with the vehicle's start-stop system.

2. What are potential causes of OBDII code P1A6C?

- Potential causes include a faulty SGCM (Starter-Generator Control Module), wiring issues, software glitches, or calibration problems within the SGCM system.

3. How can I diagnose OBDII code P1A6C?

- Diagnosis typically involves using a diagnostic scan tool to retrieve the code, checking the SGCM system for any visible issues, and conducting a thorough inspection of related components.

4. Can I continue driving my vehicle with OBDII code P1A6C present?

- It is not recommended to continue driving your vehicle with this code present, as it can lead to further damage and potential safety issues. It's best to address the problem promptly.

5. What are some repair tips for fixing OBDII code P1A6C?

- Repair tips may include checking and repairing any damaged wiring, performing a software update on the SGCM system, or replacing the SGCM if necessary.

6. Is it safe to reset the OBDII code P1A6C without addressing the underlying issue?

- It is not recommended to simply reset the code without addressing the underlying problem, as it will likely return and could lead to more severe issues down the line.

7. Can a DIY enthusiast fix OBDII code P1A6C at home?

- While some basic troubleshooting steps can be taken at home, diagnosing and repairing OBDII code P1A6C may require specialized tools and expertise, so it's best to consult a professional mechanic.

8. How much does it typically cost to repair OBDII code P1A6C?

- The cost of repairing OBDII code P1A6C can vary depending on the specific underlying issue, parts needed for replacement, and labor costs. It's advisable to get a few quotes from different repair shops.

9. Will OBDII code P1A6C cause my vehicle to fail an emissions test?

- Yes, OBDII code P1A6C can cause your vehicle to fail an emissions test, as it indicates a fault within the emissions control system that needs to be addressed.

10. How long can I drive with OBDII code P1A6C before getting it repaired?

- It's recommended to address OBDII code P1A6C as soon as possible to prevent further damage to your vehicle and ensure optimal performance. Driving with this code present for an extended period is not advisable.