P0A37 Saturn Code - Starter/Generator Temperature Sensor Performance
Quick Answer
The Starter/Generator Control Module (SGCM) monitors the performance of the motor-generator temperature sensor to detect if it is within range of the other temperature sensors, by comparing it to other temperature sensors it controls. Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module 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
- P0A37 Saturn indicates Starter/Generator Temperature Sensor Performance.
- Common causes
- Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module 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 P0A37 Saturn Description
What are the Possible Causes of the DTC P0A37 Saturn?
- Faulty Starter/Generator Control Module (SGCM)
- Starter/Generator Control Module harness is open or shorted
- Starter/Generator Control Module circuit poor electrical connection
- Faulty Motor/Generator Unit (MGU)
How to Fix the DTC P0A37 Saturn?
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 P0A37 Saturn 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 P0A37 Saturn Code
1. What does the OBDII code P0A37 mean on a Saturn?
P0A37 indicates an issue with the performance of the starter/generator temperature sensor, which monitors the temperature of the starter/generator system.
2. What are the common symptoms of a P0A37 code on a Saturn?
Symptoms may include an illuminated check engine light, reduced fuel efficiency, limited hybrid functionality (if applicable), or the engine not starting properly.
3. What causes the P0A37 code on a Saturn?
The code can be caused by a faulty temperature sensor, damaged wiring or connectors, excessive heat in the starter/generator, or a malfunctioning starter/generator assembly.
4. Can I drive my Saturn with a P0A37 code?
Driving with a P0A37 code is not recommended, as it can lead to further damage to the starter/generator system and reduced vehicle performance.
5. How is the P0A37 code diagnosed in a Saturn?
A technician will use a scan tool to confirm the code, inspect the starter/generator temperature sensor and its wiring, and test the sensor’s output to ensure it’s functioning properly.
6. How do you fix a P0A37 code on a Saturn?
Repairs may include replacing the faulty temperature sensor, repairing damaged wiring or connectors, or addressing issues with the starter/generator assembly.
7. How much does it cost to repair a P0A37 code?
Repair costs can vary but generally range from $100 to $500, depending on whether the issue is with the sensor, wiring, or a more significant component like the starter/generator.
8. Can a P0A37 code be caused by low battery voltage?
Yes, low battery voltage or charging system issues can sometimes trigger the P0A37 code if the starter/generator is not functioning correctly.
9. Is the P0A37 code unique to Saturn vehicles?
No, the P0A37 code is not unique to Saturn, but its specific symptoms and causes may vary based on the vehicle’s make and model.
10. Can I reset the P0A37 code without fixing the issue?
While the code can be cleared with a scan tool, it will likely return if the underlying problem is not resolved.
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