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Engine-Codes – BMW – P0712 BMW

P0712 BMW Code - Transmission Fluid Temperature Sensor Low Input

Quick Answer

The P0712 BMW code indicates that there is a low input signal coming from the transmission fluid temperature sensor. Common causes include Faulty transmission fluid temperature sensor, Wiring or connector issues related to the sensor, Low transmission fluid level. 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
P0712 BMW indicates Transmission Fluid Temperature Sensor Low Input.
Common causes
Common causes include Faulty transmission fluid temperature sensor, Wiring or connector issues related to the sensor, Low transmission fluid level.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0712 BMW Description

The P0712 BMW code indicates that there is a low input signal coming from the transmission fluid temperature sensor. This sensor is crucial for monitoring the temperature of the transmission fluid, which is essential for the proper operation of the transmission system. When the sensor detects that the transmission fluid temperature is too low, it could lead to various issues with the vehicle's performance and overall drivability.

OBDII Code P0712 BMW - Transmission Fluid Temperature Sensor Low Input
P0712 BMW Code - Transmission Fluid Temperature Sensor Low Input

Common Causes of P0712 BMW

  1. Faulty transmission fluid temperature sensor
  2. Wiring or connector issues related to the sensor
  3. Low transmission fluid level
  4. Dirty or contaminated transmission fluid
  5. Issues with the transmission control module

Symptoms of P0712 BMW

  1. Check engine light illuminated on the dashboard
  2. Transmission slipping or shifting erratically
  3. Reduced fuel efficiency
  4. Harsh or delayed shifting
  5. Transmission overheating

How to Fix P0712 BMW

  1. Begin by diagnosing the issue by using a scan tool to read the code and determine the exact cause of the low input signal from the transmission fluid temperature sensor.
  2. Inspect the sensor, wiring, and connectors for any signs of damage or corrosion. Replace the sensor if necessary.
  3. Check the transmission fluid level and condition. Top up or replace the fluid if it is low or contaminated.
  4. Clear the code from the ECM or TCM memory using the scan tool after completing the repair.
  5. Test drive the vehicle to ensure that the transmission is operating correctly and that the code does not return.

Cost to Fix P0712 BMW

The cost of repairing a P0712 BMW code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a transmission fluid temperature sensor can range from $100 to $200, including parts and labor. However, additional costs may apply if there are underlying issues with the wiring, connectors, or transmission fluid. It is recommended to consult with a qualified mechanic or auto repair shop to get a more accurate estimate based on your vehicle's make and model. Keep in mind that diagnosis time and labor rates can vary among different repair facilities.

When is the Code Detected?

Transmission Control Module (TCM) detects excessively low voltage from the fluid temperature sensor.

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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 P0712 BMW Code

1. What are the common symptoms of OBDII code P0712 in a BMW related to the Transmission Fluid Temperature Sensor Low Input?

- The common symptoms include issues with shifting gears, erratic transmission behavior, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P0712 in a BMW?

- The code P0712 can be triggered by a faulty transmission fluid temperature sensor, damaged wiring or connectors related to the sensor, or a low transmission fluid level.

3. How can I diagnose the cause of OBDII code P0712 in my BMW?

- A diagnostic scan tool can be used to read the code and monitor the transmission fluid temperature sensor's readings. Checking the wiring and connections for any damage or corrosion is also recommended.

4. Can driving with OBDII code P0712 in a BMW cause further damage to the transmission?

- Continuing to drive with the P0712 code may lead to potential damage to the transmission due to incorrect temperature readings affecting the transmission's performance.

5. How can I reset OBDII code P0712 in my BMW after repairing the Transmission Fluid Temperature Sensor Low Input issue?

- After fixing the underlying issue, you can clear the code using a diagnostic scan tool or by disconnecting the car's battery for a few minutes to reset the system.

6. Is it safe to continue driving my BMW with OBDII code P0712 present?

- It is not recommended to drive the vehicle with the P0712 code active, as it can lead to transmission issues and potentially cause further damage.

7. Can a DIY enthusiast repair OBDII code P0712 in a BMW, or is it best left to a professional mechanic?

- While diagnosing and repairing the sensor or wiring issue may be possible for some DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.

8. How much does it typically cost to repair OBDII code P0712 in a BMW?

- The cost of repairing OBDII code P0712 can vary depending on the exact cause of the issue, but it may involve replacing the transmission fluid temperature sensor, repairing wiring, or addressing low fluid levels.

9. Are there any preventive maintenance tips to avoid OBDII code P0712 in a BMW?

- Regularly checking and maintaining proper transmission fluid levels, inspecting sensor connections, and addressing any warning signs promptly can help prevent the occurrence of code P0712.

10. Can extreme weather conditions affect the likelihood of triggering OBDII code P0712 in a BMW?

- Yes, extreme temperatures can impact the accuracy of the transmission fluid temperature sensor readings, potentially leading to the triggering of code P0712.

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