AutoCodes – Saturn – P1A93 Saturn

P1A93 Saturn Code - 14-Volt Power Module Stuck OFF

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 (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
P1A93 Saturn indicates 14-Volt Power Module Stuck OFF.
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 1,296
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 24, 2020
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Code P1A93 Saturn 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 bidirectional, 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 start 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 P1A93 Saturn - 14-Volt Power Module Stuck OFF - AutoCodes.com
P1A93 Saturn Code - 14-Volt Power Module Stuck OFF

What are the Possible Causes of the DTC P1A93 Saturn?

  • 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 P1A93 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 P1A93 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 P1A93 Saturn 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 P1A93 Saturn Code

1. What does OBDII code P1A93 on a Saturn mean?

The code P1A93 on a Saturn indicates a problem with the 14-Volt Power Module being stuck OFF.

2. What are the common symptoms of OBDII code P1A93 on a Saturn?

Common symptoms of code P1A93 include loss of power steering assist, illumination of the battery warning light, and potential drivability issues.

3. What are the possible causes of OBDII code P1A93 on a Saturn?

Possible causes of code P1A93 include a faulty 14-Volt Power Module, wiring issues, a blown fuse, or a problem with the power steering system.

4. How can I diagnose the OBDII code P1A93 on my Saturn?

Diagnosing code P1A93 may involve checking the wiring and connections related to the 14-Volt Power Module, inspecting the power steering system, and using a diagnostic scanner to retrieve trouble codes.

5. Can I continue driving my Saturn with OBDII code P1A93 present?

Continuing to drive with code P1A93 present is not recommended, as it can lead to potential safety hazards and further damage to the vehicle's systems.

6. How can I repair OBDII code P1A93 on my Saturn?

Repairing code P1A93 may involve replacing the 14-Volt Power Module, repairing any damaged wiring, checking and replacing fuses if necessary, and clearing the trouble codes.

7. Is it safe to reset the OBDII code P1A93 on my Saturn using a diagnostic scanner?

Resetting the code using a diagnostic scanner is safe after the underlying issue has been addressed and repaired to prevent the code from reoccurring.

8. How much does it typically cost to repair OBDII code P1A93 on a Saturn?

The cost of repairing code P1A93 on a Saturn can vary depending on the cause of the issue, parts needed for replacement, and labor costs at a repair shop.

9. Can I prevent OBDII code P1A93 from appearing on my Saturn?

Regular maintenance, timely repairs of any related issues, and addressing warning signs promptly can help prevent code P1A93 from appearing on your Saturn.

10. Is it recommended to seek professional help for diagnosing and repairing OBDII code P1A93 on a Saturn?

Seeking professional help from a certified mechanic or dealership is advisable for accurate diagnosis and proper repair of code P1A93 to ensure the safety and performance of your Saturn.

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