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P1A76 Buick Code - Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage

Quick Answer

The Starter/Generator Control Module (SGCM) monitors its internal fluid temperature sensors to control the SGCM coolant pump and SGCM cooling fan. 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: P1A76 Buick indicates Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit 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.

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Code Popularity 880

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A76 Buick Description

The Starter/Generator Control Module (SGCM) monitors its internal fluid temperature sensors to control the SGCM coolant pump and SGCM cooling fan. The internal fluid temperature sensors of the SGCM are thermistors and are not serviceable. When the internal fluid temperatures are cold, the resistances of the sensors are high and the voltage signals are high. When the internal fluid temperatures are hot, the resistances of the sensors are low and the voltage signals are low. The input parameters are not displayed on the scan tool.

OBDII Code P1A76 Buick - Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage - AutoCodes.com — P1A76 Buick Code - Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1A76 Buick?

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 P1A76 Buick?

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 P1A76 Buick 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1A76 Buick Code

1. What are the common symptoms of OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- Common symptoms include engine overheating, poor fuel efficiency, rough idling, and the Check Engine light illuminating on the dashboard.

2. What are the possible causes of OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- Possible causes include a faulty coolant temperature sensor, damaged wiring or connectors, low coolant levels, a malfunctioning starter/generator control module, or a problem with the engine control module.

3. How can I diagnose OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- To diagnose this code, you can use an OBDII scanner to retrieve the fault codes, inspect the coolant temperature sensor and related wiring, check coolant levels, and perform a thorough visual inspection of the components involved.

4. What are some repair tips for resolving OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- Repair tips include replacing the faulty coolant temperature sensor, repairing or replacing damaged wiring or connectors, ensuring proper coolant levels, and addressing any issues with the starter/generator control module or engine control module.

5. Can OBDII code P1A76 related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage affect the vehicle's performance?

- Yes, this code can affect the vehicle's performance by causing engine overheating, reduced fuel efficiency, and potentially leading to more serious engine issues if left unresolved.

6. Is it safe to continue driving with OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- It is not recommended to continue driving with this code present, as it can lead to engine damage or failure if the underlying issues are not addressed promptly.

7. How much does it typically cost to repair OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses such as parts replacement, labor costs, and diagnostic fees. It is advisable to consult a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast with basic mechanical knowledge fix OBDII code P1A76 related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- Depending on the specific cause of the code, some DIY enthusiasts may be able to address the issue by replacing the coolant temperature sensor or checking for damaged wiring. However, more complex repairs involving control modules or engine components may require professional assistance.

9. How long does it take to repair OBDII code P1A76 in a Buick related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage?

- The repair time can vary based on the extent of the issue and the specific repairs needed. Simple fixes like sensor replacement may take a short time, while more involved repairs could require several hours or days to complete.

10. Are there any preventive measures to avoid encountering OBDII code P1A76 related to the Starter/Generator Control Module Coolant Temperature Sensor 2 Circuit Low Voltage in a Buick?

- Regular vehicle maintenance, such as checking coolant levels, monitoring engine performance, and addressing any warning signs promptly, can help prevent issues that may trigger this OBDII code.