AutoCodes – Generic – P0516

P0516 Code - Battery Temperature Sensor Circuit Low

Quick Answer

The battery temperature sensor built into the generator control ECU assembly detects the battery temperature. Common causes include Faulty Battery Temperature Sensor (Built into the Generator control ECU assembly), Battery Temperature Sensor harness is open or shorted, Battery Temperature Sensor 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
P0516 indicates Battery Temperature Sensor Circuit Low.
Common causes
Common causes include Faulty Battery Temperature Sensor (Built into the Generator control ECU assembly), Battery Temperature Sensor harness is open or shorted, Battery Temperature Sensor 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 11,224
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 06, 2024
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Code P0516 Description

The battery temperature sensor built into the generator control ECU assembly detects the battery temperature. A thermistor is integrated into the battery temperature sensor, and the resistance of the thermistor changes according to the battery temperature. The resistance of the thermistor increases as the battery temperature decreases and decreases as the temperature increases. The generator control ECU assembly reduces the amount of charging current based on this signal in order to protect the battery. The Diagnostic Trouble Code (DTC) will be set when the battery temperature sensor output value is abnormally low for 0.5 seconds or more with the ignition switch ON.
OBDII Code P0516 - Battery Temperature Sensor Circuit Low - AutoCodes.com
P0516 Code - Battery Temperature Sensor Circuit Low

What are the Possible Causes of the DTC P0516?

  • Faulty Battery Temperature Sensor (Built into the Generator control ECU assembly)
  • Battery Temperature Sensor harness is open or shorted
  • Battery Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0516?

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 P0516 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 P0516 code?

Need more information on how to fix the P0516 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0516 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 P0516 Code

1. What are the common symptoms of OBDII code P0516 (Battery Temperature Sensor Circuit Low)?

The common symptoms of OBDII code P0516 include issues with the vehicle's battery, such as frequent dead battery incidents, difficulty starting the engine, and problems with the vehicle's electrical system.

2. What can cause the OBDII code P0516 to trigger?

The OBDII code P0516 (Battery Temperature Sensor Circuit Low) can be triggered by a faulty battery temperature sensor, damaged wiring or connectors related to the sensor, or a malfunction in the sensor circuit.

3. How serious is the OBDII code P0516?

The OBDII code P0516 should be addressed promptly to prevent further damage to the vehicle's electrical system and to ensure the proper functioning of the battery temperature sensor.

4. What should I do if I encounter the OBDII code P0516?

If you encounter the OBDII code P0516, it is recommended to have the battery temperature sensor and its circuit inspected by a qualified mechanic to diagnose and repair the issue.

5. Can I continue driving my vehicle with the OBDII code P0516 present?

It is not advisable to continue driving your vehicle with the OBDII code P0516 present, as it can lead to potential issues with the battery and electrical system, resulting in further damage and safety risks.

6. How can I repair the OBDII code P0516?

To repair the OBDII code P0516, the faulty battery temperature sensor may need to be replaced, damaged wiring or connectors should be repaired or replaced, and the sensor circuit should be tested for proper functionality.

7. Is it possible to clear the OBDII code P0516 without repairing the issue?

Clearing the OBDII code P0516 without addressing the underlying problem may only provide a temporary solution, as the code is likely to reappear until the root cause is fixed.

8. Can a DIY enthusiast fix the OBDII code P0516 at home?

While some DIY enthusiasts may have the skills to diagnose and repair the OBDII code P0516, it is recommended to seek professional help to ensure the issue is properly resolved and to prevent any further complications.

9. How can I prevent the OBDII code P0516 from occurring in the future?

Regular maintenance of the battery temperature sensor and its circuit, checking for any signs of damage or wear, and addressing any issues promptly can help prevent the OBDII code P0516 from occurring in the future.

10. What is the typical cost to repair the OBDII code P0516?

The cost to repair the OBDII code P0516 can vary depending on the extent of the damage, the parts needed for replacement, and the labor charges. It is advisable to obtain quotes from different mechanics or repair shops for an accurate estimate.

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