AutoCodes – Generic – P1A6E

P1A6E Code - Starter/Generator Control Module System Voltage High

Quick Answer

The Starter/Generator Control Module (SGCM) monitors the system voltage sensor to detect a shorted low or high condition. Common causes include 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. 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: P1A6E indicates Starter/Generator Control Module System Voltage High.
Common causes: Common causes include 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.
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.

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Code Popularity 3,457

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 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A6E Description

The Starter/Generator Control Module (SGCM) monitors the system voltage sensor to detect a shorted low or high condition.

OBDII Code P1A6E - Starter/Generator Control Module System Voltage High - AutoCodes.com — P1A6E Code - Starter/Generator Control Module System Voltage High

What does this mean?

What are the Possible Causes of the DTC P1A6E?

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 P1A6E?

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 P1A6E 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 P1A6E code?

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Need Help with the Code?

Get the P1A6E code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1A6E Buick — Starter/Generator Control Module System Voltage High
P1A6E Cadillac — Starter/Generator Control Module System Voltage High
P1A6E Chevrolet — Starter/Generator Control Module System Voltage High
P1A6E GMC — Starter/Generator Control Module System Voltage High
P1A6E Saturn — Starter/Generator Control Module System Voltage High

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 P1A6E Code

1. What are common symptoms of OBDII code P1A6E (Starter/Generator Control Module System Voltage High)?

- Common symptoms include the illuminated check engine light, reduced fuel efficiency, and possible issues with starting the vehicle.

2. What can cause the OBDII code P1A6E to be triggered?

- This code is typically triggered by a malfunction in the Starter/Generator Control Module, which may be caused by electrical faults or issues with the module itself.

3. How serious is the OBDII code P1A6E (Starter/Generator Control Module System Voltage High)?

- While the vehicle may still be operational with this code present, it is important to address it promptly to prevent potential damage to the electrical system.

4. Can I continue driving my vehicle with the OBDII code P1A6E present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further electrical issues and potential breakdowns.

5. What are some DIY repair tips for OBDII code P1A6E?

- DIY repair tips may include checking the battery voltage, inspecting wiring connections, and ensuring proper grounding of the Starter/Generator Control Module.

6. How can I reset the OBDII code P1A6E after making repairs?

- The code can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes before reconnecting it.

7. Can a faulty battery cause the OBDII code P1A6E to appear?

- Yes, a faulty battery or issues with the vehicle's charging system can contribute to the triggering of this code.

8. Is it necessary to replace the Starter/Generator Control Module to resolve OBDII code P1A6E?

- In some cases, replacing the Starter/Generator Control Module may be necessary to resolve the issue, especially if it is found to be faulty during diagnosis.

9. How can I prevent the recurrence of OBDII code P1A6E in the future?

- Regular maintenance of the vehicle's electrical system, including checking the battery, charging system, and wiring, can help prevent the recurrence of this code.

10. What should I do if I am unable to diagnose or repair OBDII code P1A6E on my own?

- If you are unable to diagnose or repair this code on your own, it is recommended to seek assistance from a qualified mechanic or dealership for further diagnosis and repair.