P1A85 GMC Code - Starter/Generator Control Module Coolant Level Sensor 4 Low 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
- P1A85 GMC indicates Starter/Generator Control Module Coolant Level Sensor 4 Low 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 P1A85 GMC Description
What are the Possible Causes of the DTC P1A85 GMC?
- 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 P1A85 GMC?
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 P1A85 GMC 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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Frequently Asked Questions about P1A85 GMC Code
1. What are the common symptoms of OBDII code P1A85 GMC?
- Common symptoms include the Check Engine light coming on, reduced engine power, and potential issues with starting the vehicle.
2. What could cause OBDII code P1A85 GMC to trigger?
- This code is typically triggered by a low voltage condition detected in the Starter/Generator Control Module Coolant Level Sensor 4.
3. How serious is OBDII code P1A85 GMC?
- While the severity can vary, it is important to address this code promptly to prevent potential damage to the vehicle's systems.
4. Can a faulty coolant level sensor cause OBDII code P1A85 GMC?
- Yes, a faulty coolant level sensor or issues with its wiring can lead to the low voltage condition triggering this code.
5. What are some DIY repair tips for OBDII code P1A85 GMC?
- DIY repair tips may include checking the coolant level sensor connections, inspecting for any visible damage, and testing the sensor's functionality.
6. Is it safe to continue driving with OBDII code P1A85 GMC present?
- It is generally not recommended to drive with this code present, as it can affect the vehicle's performance and potentially lead to further issues.
7. How can I reset OBDII code P1A85 GMC after making repairs?
- After addressing the underlying issue, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
8. Can a low battery voltage trigger OBDII code P1A85 GMC?
- Yes, a low battery voltage or issues with the vehicle's electrical system can contribute to triggering this code.
9. Will OBDII code P1A85 GMC affect the vehicle's fuel efficiency?
- In some cases, this code may lead to reduced fuel efficiency due to potential engine performance issues associated with it.
10. How can a mechanic diagnose OBDII code P1A85 GMC?
- A mechanic may use a diagnostic scanner to retrieve the code, inspect the Starter/Generator Control Module Coolant Level Sensor 4, and test related components for proper function.
Discuss the causes and fixes for P1A85 GMC OBDII Code
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