AutoCodes – Cadillac – P1A6D Cadillac

P1A6D Cadillac Code - Starter/Generator Control Module System Voltage Low

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: P1A6D Cadillac indicates Starter/Generator Control Module System Voltage Low.
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 901

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 P1A6D Cadillac Description

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

OBDII Code P1A6D Cadillac - Starter/Generator Control Module System Voltage Low - AutoCodes.com — P1A6D Cadillac Code - Starter/Generator Control Module System Voltage Low

What does this mean?

What are the Possible Causes of the DTC P1A6D Cadillac?

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 P1A6D Cadillac?

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 P1A6D Cadillac 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 P1A6D Cadillac code?

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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 P1A6D Cadillac Code

What are the common symptoms of OBDII code P1A6D in a Cadillac related to the Starter/Generator Control Module System Voltage Low?

Common symptoms include issues with starting the vehicle, dimming lights, battery warning lights, and poor electrical system performance.

What are some possible causes of OBDII code P1A6D in a Cadillac?

Potential causes may include a faulty starter/generator control module, a weak or failing battery, loose or corroded electrical connections, or issues with the charging system.

How can I diagnose OBDII code P1A6D in a Cadillac related to the Starter/Generator Control Module System Voltage Low?

Diagnosis typically involves using a scan tool to read the code, checking the battery voltage, inspecting the electrical connections, and testing the starter/generator control module.

What are some repair tips for addressing OBDII code P1A6D in a Cadillac?

Repair tips may include replacing the starter/generator control module if faulty, testing and replacing the battery if needed, cleaning or tightening electrical connections, and ensuring proper charging system function.

Is it safe to continue driving with OBDII code P1A6D related to the Starter/Generator Control Module System Voltage Low in a Cadillac?

It is not recommended to continue driving with this code unresolved, as it can lead to potential issues with starting the vehicle and electrical system failures.

Can a DIY enthusiast fix OBDII code P1A6D in a Cadillac related to the Starter/Generator Control Module System Voltage Low?

While some basic inspections and maintenance tasks can be performed by a knowledgeable DIY enthusiast, diagnosing and repairing this code may require specialized tools and expertise, so professional assistance is recommended.

Are there any preventive measures to avoid OBDII code P1A6D in a Cadillac related to the Starter/Generator Control Module System Voltage Low?

Regularly checking and maintaining the battery, keeping electrical connections clean and secure, and addressing any warning signs promptly can help prevent issues leading to this code.

What is the typical cost to repair OBDII code P1A6D in a Cadillac related to the Starter/Generator Control Module System Voltage Low?

The cost of repair can vary depending on the specific cause of the code, parts needed, labor rates, and whether the repair is done at a dealership or an independent mechanic. It is advisable to obtain quotes from different sources.