AutoCodesGeneric – P1A63

P1A63 Code - Starter/Generator Control Module Internal Circuit

Quick Answer

The Starter/Generator Control Module (SGCM) monitors to detect internal faults. 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
P1A63 indicates Starter/Generator Control Module Internal Circuit.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,591
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 P1A63 Description

The Starter/Generator Control Module (SGCM) monitors to detect internal faults. If a fault is detected, the appropriate code will set.
OBDII Code P1A63 - Starter/Generator Control Module Internal Circuit - AutoCodes.com
P1A63 Code - Starter/Generator Control Module Internal Circuit

What are the Possible Causes of the DTC P1A63?

  • 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 P1A63?

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 P1A63 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.

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Information for Specific Makes

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 P1A63 Code

1. What does the OBDII code P1A63 mean?

P1A63 refers to an issue within the Starter/Generator Control Module's internal circuit, which is responsible for managing the starter and generator functions in hybrid or electric vehicles.

2. What are the common symptoms of code P1A63?

Symptoms may include an illuminated check engine light, reduced fuel efficiency, failure to start, or issues with charging the hybrid battery.

3. What causes the P1A63 code to appear?

Potential causes include a faulty Starter/Generator Control Module, damaged wiring or connectors, or issues with the hybrid battery system.

4. Can I drive my car with a P1A63 code?

Driving with a P1A63 code is not recommended, as it can lead to starting or charging problems and may cause further damage to the hybrid system.

5. How is the P1A63 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the Starter/Generator Control Module, and check the wiring and connectors for damage or corrosion.

6. What repairs are commonly needed to fix a P1A63 code?

Repairs may include replacing the Starter/Generator Control Module, repairing or replacing damaged wiring, or addressing any hybrid battery-related issues.

7. How much does it cost to fix the P1A63 code?

The cost can vary, but replacing the Starter/Generator Control Module may range from $500 to $1,500, depending on the vehicle and labor rates.

8. Can a dead hybrid battery cause a P1A63 code?

Yes, a failing or dead hybrid battery can contribute to this code by overloading the Starter/Generator Control Module.

9. Can a software update fix the P1A63 code?

In some cases, a software update for the Starter/Generator Control Module may resolve the issue if it’s caused by a programming error.

10. How can I prevent the P1A63 code from reoccurring?

Regular maintenance, including inspecting the hybrid system and addressing electrical issues promptly, can help prevent this code from recurring.

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