AutoCodes – Generic – P1493

P1493 Code - Battery Temperature Sensor Signal Too Low Condition

Quick Answer

With the key on or engine running, then the Powertrain Control Module (PCM) detects that the Battery Temperature Sensor (BTS) value was more than 4.9v for 3 seconds. Common causes include Faulty Battery Temperature Sensor, 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
P1493 indicates Battery Temperature Sensor Signal Too Low Condition.
Common causes
Common causes include Faulty Battery Temperature Sensor, 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 26,851
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 25, 2019
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Code P1493 Description

With the key on or engine running, then the Powertrain Control Module (PCM) detects that the Battery Temperature Sensor (BTS) value was more than 4.9v for 3 seconds.
OBDII Code P1493 - Battery Temperature Sensor Signal Too Low Condition - AutoCodes.com
P1493 Code - Battery Temperature Sensor Signal Too Low Condition

What are the Possible Causes of the DTC P1493?

  • Faulty Battery Temperature Sensor
  • Battery Temperature Sensor harness is open or shorted
  • Battery Temperature Sensor circuit poor electrical connection

How to Fix the DTC P1493?

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 P1493 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 P1493 code?

Need more information on how to fix the P1493 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1493 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1493 Audi β€” Low Pressure Pump For Brake Power Too Low
  • P1493 Chrysler β€” Battery Temperature Sensor Signal Too Low Condition
  • P1493 Dodge β€” Battery Temperature Sensor Signal Too Low Condition
  • P1493 Infiniti β€” EVAP Canister Purge Control Valve/Solenoid Valve Stuck Open
  • P1493 Jeep β€” Battery Temperature Sensor Signal Too Low Condition
  • P1493 Mitsubishi β€” Battery Temperature Sensor Signal Too Low Condition
  • P1493 Nissan β€” EVAP Canister Purge Control Valve/Solenoid Valve Stuck Open
  • P1493 Saab β€” Evaporative Emission Pressure Sensor / Fuel Tank Level Sensor In Fuel Tank - Range / Performance Problem / Malfunction
  • P1493 Subaru β€” EGR Signal Line 1 Circuit High
  • P1493 Volkswagen β€” Low Pressure Pump For Brake Power Too Low
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 P1493 Code

1. What are the common symptoms of OBDII code P1493 (Battery Temperature Sensor Signal Too Low Condition)?

The common symptoms of this code may include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.

2. What can cause the OBDII code P1493 to be triggered?

This code is typically triggered when the battery temperature sensor detects a signal that is lower than the expected range, which can be caused by a faulty battery temperature sensor, wiring issues, or a damaged sensor connector.

3. How serious is the OBDII code P1493 (Battery Temperature Sensor Signal Too Low Condition)?

While this code may not cause immediate harm to the vehicle, it can impact the performance and efficiency of the engine. It is advisable to address the issue promptly to prevent any further problems.

4. How can I diagnose the cause of OBDII code P1493?

Diagnosing the cause of this code usually involves inspecting the battery temperature sensor, checking the sensor's wiring and connector for any damage, and using a diagnostic tool to read the sensor's data.

5. Can I still drive my vehicle with the OBDII code P1493?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue as soon as possible to avoid any potential long-term damage to the engine or other components.

6. How can I repair the OBDII code P1493 (Battery Temperature Sensor Signal Too Low Condition)?

Repairing this code often involves replacing the faulty battery temperature sensor, repairing any damaged wiring or connectors, and clearing the code with a diagnostic tool.

7. Can a DIY enthusiast fix the OBDII code P1493 issue?

Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address this issue by following the manufacturer's repair instructions and using the necessary tools.

8. Will the OBDII code P1493 reset itself after repair?

After repairing the issue causing this code, it is recommended to use a diagnostic tool to clear the code from the vehicle's system. Once cleared, the code should not reappear if the repair was successful.

9. What are some tips to prevent the OBDII code P1493 from occurring again?

Regularly inspecting the battery temperature sensor, ensuring proper wiring connections, and maintaining the vehicle's electrical system can help prevent the recurrence of this code.

10. Is it necessary to visit a mechanic for the OBDII code P1493 repair?

While it is possible to address this issue independently, seeking assistance from a qualified mechanic may be beneficial, especially if the diagnosis and repair process seem challenging or if specialized tools are required.

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