P1A65 Chevrolet Code - Starter/Generator Control Module Long Term Memory Performance
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, harness is open or shorted, 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
- P1A65 Chevrolet indicates Starter/Generator Control Module Long Term Memory Performance.
- Common causes
- Common causes include Faulty, harness is open or shorted, 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 P1A65 Chevrolet 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 P1A65 Chevrolet?
- Faulty
- harness is open or shorted
- circuit poor electrical connection
How to Fix the DTC P1A65 Chevrolet?
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 P1A65 Chevrolet 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 P1A65 Chevrolet code?
Need more information on how to fix the P1A65 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1A65 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1A65 Chevrolet Code
What does the OBDII code P1A65 mean for a Chevrolet?
The code P1A65 indicates an issue with the Starter/Generator Control Module's long-term memory performance, which may affect hybrid or electric vehicle operation.
What are the common symptoms of the P1A65 code?
Symptoms may include a check engine light, reduced vehicle performance, issues with battery charging, or irregular operation of the electric starter/generator system.
What causes the P1A65 code to appear?
This code can be triggered by memory corruption in the control module, software glitches, electrical issues like wiring faults, or a failing Starter/Generator Control Module.
Can the P1A65 code affect drivability?
Yes, it may lead to reduced performance or efficiency of the starter/generator system, especially in hybrid or electric Chevrolet models.
How can I diagnose the P1A65 code?
Use an advanced OBDII scanner to check for related codes, inspect wiring and connectors, and test the Starter/Generator Control Module for proper functioning.
Can the P1A65 code be fixed without replacing the control module?
In some cases, updating the module’s software or reprogramming it may resolve the issue without replacement.
What should I check first when troubleshooting the P1A65 code?
Inspect the wiring and connectors around the Starter/Generator Control Module for damage or corrosion before considering module replacement.
Is it safe to drive with the P1A65 code active?
While the vehicle may still be operable, driving with this code could lead to reduced efficiency or performance and should be addressed promptly.
How much does it cost to repair the P1A65 code?
Repair costs vary but could range from $150-$500 for diagnostics and software updates, or higher if module replacement is necessary.
Can a dead battery cause the P1A65 code?
A weak or dead battery can sometimes contribute to memory errors in control modules, potentially triggering this code.
Discuss the causes and fixes for P1A65 Chevrolet OBDII Code
Code P1A65 Chevrolet 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.
