AutoCodes – Buick – P1A69 Buick

P1A69 Buick Code - Starter/Generator Control Module Random Access Memory

Quick Answer

The purpose of the Accessory Power Module (APM), integral to the Starter/Generator Control Module (SGCM), is to control the amount and direction of energy flowing between the 42 V DC and 14 V DC buses via the APM, bi-directional 42 V DC to 14 V DC converter. Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module 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
P1A69 Buick indicates Starter/Generator Control Module Random Access Memory.
Common causes
Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 709
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 19, 2020
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Code P1A69 Buick Description

The purpose of the Accessory Power Module (APM), integral to the Starter/Generator Control Module (SGCM), is to control the amount and direction of energy flowing between the 42 V DC and 14 V DC buses via the APM, bi-directional 42 V DC to 14 V DC converter. All APM functions will only be run when in the enable mode. APM current will be defined as the current flowing through the outputs. APM power is bi-directional, with negative current representing 14-42 direction, and positive current representing the 42-14 direction.
When the APM Power Conversion direction is set to a value of 42 V to 14 V, the energy will flow from the 42 V DC Bus to the 14 V DC Bus via the APM. When the Service Charge or jump starting is requested, the energy will flow from the 14 V DC Bus to the 42 V DC Bus via the APM. When the APM Power Conversion direction is set to a value of Off, the APM will be turned off, and not consume or transfer any power. When the APM Power Conversion direction is set to a value of Invalid, the energy will flow from the 42 V DC Bus to the 14 V DC Bus via the APM.
OBDII Code P1A69 Buick - Starter/Generator Control Module Random Access Memory - AutoCodes.com
P1A69 Buick Code - Starter/Generator Control Module Random Access Memory

What are the Possible Causes of the DTC P1A69 Buick?

  • Faulty Starter/Generator Control Module (SGCM)
  • Starter/Generator Control Module harness is open or shorted
  • Starter/Generator Control Module circuit poor electrical connection

How to Fix the DTC P1A69 Buick?

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 P1A69 Buick 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 P1A69 Buick code?

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Need Help with the Code?

Get the P1A69 Buick 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 P1A69 Buick Code

1. What are common symptoms of OBDII code P1A69 in a Buick related to the Starter/Generator Control Module Random Access Memory?

Common symptoms include issues with starting the vehicle, poor acceleration, and potential stalling.

2. What are some possible causes for the OBDII code P1A69 in a Buick related to the Starter/Generator Control Module Random Access Memory?

Potential causes may include a faulty starter/generator control module, wiring issues, or a malfunctioning battery.

3. How can I diagnose the OBDII code P1A69 in my Buick related to the Starter/Generator Control Module Random Access Memory?

Diagnosis typically involves using a diagnostic scanner to read the code, checking the connections to the starter/generator control module, and testing the module itself for proper functioning.

4. Can I still drive my Buick with the OBDII code P1A69 related to the Starter/Generator Control Module Random Access Memory?

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

5. Is it possible to reset the OBDII code P1A69 related to the Starter/Generator Control Module Random Access Memory without repairs?

While clearing the code may temporarily remove the warning light, it is crucial to address the underlying issue causing the code to prevent further problems.

6. Are there any DIY repair tips for fixing the OBDII code P1A69 in a Buick related to the Starter/Generator Control Module Random Access Memory?

DIY repairs may include checking and cleaning the connections to the starter/generator control module, ensuring proper battery voltage, and inspecting for any visible damage.

7. How much does it typically cost to repair the OBDII code P1A69 in a Buick related to the Starter/Generator Control Module Random Access Memory?

Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a faulty battery cause the OBDII code P1A69 related to the Starter/Generator Control Module Random Access Memory in a Buick?

Yes, a weak or faulty battery can sometimes trigger this code due to insufficient power supply to the starter/generator control module.

9. Is the OBDII code P1A69 related to the Starter/Generator Control Module Random Access Memory a common issue in Buick vehicles?

While not extremely common, this code can occur in Buick vehicles, particularly in models equipped with start/stop systems or hybrid technology.

10. Should I seek professional help to diagnose and repair the OBDII code P1A69 in my Buick related to the Starter/Generator Control Module Random Access Memory?

Due to the complexity of the system involved, it is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair of this code.

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