P1A86 Code - Starter/Generator Control Module Coolant Level Sensor 4 High Voltage
Quick Answer
The Starter/Generator Control Module (SGCM) electronics are immersed in an internal fluid to distribute the heat of the electronics evenly through the SGCM, this electronics internal fluid is not the coolant that is circulated through the SGCM cooling system. 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
- P1A86 indicates Starter/Generator Control Module Coolant Level Sensor 4 High Voltage.
- 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 P1A86 Description
What are the Possible Causes of the DTC P1A86?
- 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 P1A86?
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 P1A86 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
- P1A86 Buick — Starter/Generator Control Module Coolant Level Sensor 4 High Voltage
- P1A86 Cadillac — Starter/Generator Control Module Coolant Level Sensor 4 High Voltage
- P1A86 Chevrolet — Starter/Generator Control Module Coolant Level Sensor 4 High Voltage
- P1A86 GMC — Starter/Generator Control Module Coolant Level Sensor 4 High Voltage
- P1A86 Hyundai — Inappropriate And Low SOC
- P1A86 KIA — Inappropriate And Low SOC
- P1A86 Saturn — Starter/Generator Control Module Coolant Level Sensor 4 High Voltage
Frequently Asked Questions about P1A86 Code
1. What are the common symptoms of OBDII code P1A86?
- Common symptoms include illuminated check engine light, reduced engine performance, and potential issues with the starter/generator.
2. What causes OBDII code P1A86 to be triggered?
- This code is typically triggered by a high voltage reading from the coolant level sensor 4 in the starter/generator control module.
3. How serious is OBDII code P1A86?
- While the severity can vary, this code should be addressed promptly to prevent potential damage to the starter/generator and ensure proper engine operation.
4. How can I diagnose OBDII code P1A86?
- Diagnosis involves using a diagnostic scanner to retrieve the code, checking the coolant level sensor 4 and associated wiring for any issues, and testing the starter/generator control module.
5. Can I still drive my vehicle with OBDII code P1A86?
- It is not recommended to continue driving with this code active, as it can lead to further complications and potential damage to the vehicle's components.
6. How can I repair OBDII code P1A86?
- Repair typically involves replacing the faulty coolant level sensor 4 in the starter/generator control module and clearing the code with a diagnostic scanner.
7. Are there any DIY tips for fixing OBDII code P1A86?
- While some enthusiasts may attempt the repair themselves, it is recommended to consult a professional mechanic due to the complexity of the starter/generator system.
8. What are the potential consequences of ignoring OBDII code P1A86?
- Ignoring this code can result in overheating, engine damage, and eventual starter/generator failure, leading to costly repairs.
9. How long does it take to repair OBDII code P1A86?
- The repair time can vary depending on the extent of the issue, but it typically takes a few hours for a qualified mechanic to diagnose and replace the faulty sensor.
10. Is OBDII code P1A86 a common issue in certain vehicle models?
- This particular code may be more prevalent in hybrid or electric vehicles that utilize starter/generator systems for engine operation.
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