P1A95 Code - DC/DC Converter Stuck in 14-42 Volt Direction
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 a 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
- P1A95 indicates DC/DC Converter Stuck in 14-42 Volt Direction.
- 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.
Code P1A95 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 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.
What are the Possible Causes of the DTC P1A95?
- 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 P1A95?
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 P1A95 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 P1A95 code?
Need more information on how to fix the P1A95 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1A95 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1A95 Buick — DC/DC Converter Stuck in 14-42 Volt Direction
- P1A95 Cadillac — DC/DC Converter Stuck in 14-42 Volt Direction
- P1A95 Chevrolet — DC/DC Converter Stuck in 14-42 Volt Direction
- P1A95 GMC — DC/DC Converter Stuck in 14-42 Volt Direction
- P1A95 Saturn — DC/DC Converter Stuck in 14-42 Volt Direction
Frequently Asked Questions about P1A95 Code
1. What are common symptoms of OBDII code P1A95 - DC/DC Converter Stuck in 14-42 Volt Direction?
- Common symptoms include poor fuel efficiency, loss of power, and possibly the vehicle going into a reduced power mode.
2. What can cause the OBDII code P1A95 to trigger?
- The code P1A95 can be triggered by issues such as a malfunctioning DC/DC converter, wiring problems, or a faulty voltage sensor.
3. How serious is the OBDII code P1A95 - DC/DC Converter Stuck in 14-42 Volt Direction?
- This code should not be ignored, as it can lead to poor performance and potentially even damage to the vehicle's electrical system if left unrepaired.
4. Can I continue driving with the OBDII code P1A95 active?
- It is not recommended to continue driving with the P1A95 code active, as it can affect the vehicle's performance and fuel efficiency.
5. How can I diagnose the cause of OBDII code P1A95 - DC/DC Converter Stuck in 14-42 Volt Direction?
- Diagnosing the issue may require professional diagnostic equipment to test the DC/DC converter, voltage sensor, and related wiring for faults.
6. What are some repair tips for fixing the OBDII code P1A95?
- Repair tips may include checking and repairing any damaged wiring, replacing the DC/DC converter if faulty, and ensuring proper connections.
7. Can a DIY enthusiast fix the OBDII code P1A95 issue?
- While some basic troubleshooting like checking connections and fuses can be done by DIY enthusiasts, diagnosing and repairing the root cause may require professional help.
8. How much does it cost to repair OBDII code P1A95 - DC/DC Converter Stuck in 14-42 Volt Direction?
- Repair costs can vary depending on the underlying issue, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars.
9. How long does it typically take to repair the OBDII code P1A95?
- The repair time can vary based on the complexity of the issue and the availability of parts, but it may take a few hours to a day at the repair shop.
10. Will resetting the OBDII code P1A95 clear the issue permanently?
- Simply resetting the code may temporarily turn off the check engine light, but if the underlying problem is not fixed, the code is likely to reappear.
Discuss the causes and fixes for P1A95 OBDII Code
Code P1A95 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
