P1A6A Code - Starter/Generator Control Module Read Only 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
- P1A6A indicates Starter/Generator Control Module Read Only 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.
Code P1A6A Description
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.
What are the Possible Causes of the DTC P1A6A?
- 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 P1A6A?
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 P1A6A 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
- P1A6A Buick — Starter/Generator Control Module Read Only Memory
- P1A6A Cadillac — Starter/Generator Control Module Read Only Memory
- P1A6A Chevrolet — Starter/Generator Control Module Read Only Memory
- P1A6A GMC — Starter/Generator Control Module Read Only Memory
- P1A6A Saturn — Starter/Generator Control Module Read Only Memory
Frequently Asked Questions about P1A6A Code
1. What are common symptoms of OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- Common symptoms include issues with starting the vehicle, reduced power output, and poor fuel efficiency.
2. What are possible causes of OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- Possible causes may include a faulty starter/generator control module, issues with the module's read-only memory, or electrical problems.
3. How can I diagnose OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault code and then inspecting the control module and related components for any visible damage or loose connections.
4. Can I still drive my vehicle with OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety issues. It is best to have the issue diagnosed and repaired as soon as possible.
5. What are some repair tips for fixing OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- Repair tips may include checking and repairing any damaged wiring, replacing the starter/generator control module if necessary, and ensuring proper programming and calibration of the module.
6. How much does it typically cost to repair OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- Repair costs can vary depending on the extent of the issue and the specific components that need to be replaced. It is advisable to get a professional diagnosis and repair estimate from a qualified mechanic.
7. Can a DIY enthusiast fix OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- While some basic troubleshooting steps can be taken by DIY enthusiasts, diagnosing and repairing this code may require specialized tools and expertise. It is recommended to seek help from a professional mechanic for complex issues.
8. Are there any recalls or technical service bulletins related to OBDII code P1A6A and the Starter/Generator Control Module Read Only Memory?
- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code and module.
9. How often does OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory occur in vehicles?
- The occurrence of this specific OBDII code can vary depending on the make and model of the vehicle, as well as the age and condition of the starter/generator control module.
10. Can resetting the OBDII system clear OBDII code P1A6A related to the Starter/Generator Control Module Read Only Memory?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the Starter/Generator Control Module Read Only Memory is not addressed, the code is likely to reappear.
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