AutoCodes – Acura – P0712 Acura

P0712 Acura Code - Transmission Fluid Temperature Sensor Short Circuit

Quick Answer

The Transmission Fluid Temperature Sensor is a thermistor-type sensor that changes resistance according to the change in transmission fluid temperature. Common causes include Faulty Transmission Fluid Temperature Sensor, Transmission Fluid Temperature Sensor harness is open or shorted, Transmission Fluid 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: P0712 Acura indicates Transmission Fluid Temperature Sensor Short Circuit.
Common causes: Common causes include Faulty Transmission Fluid Temperature Sensor, Transmission Fluid Temperature Sensor harness is open or shorted, Transmission Fluid 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 4,584

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 Jan 15, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0712 Acura Description

The Transmission Fluid Temperature Sensor is a thermistor-type sensor that changes resistance according to the change in transmission fluid temperature. The Powertrain Control Module (PCM) sends a 5 V reference signal to the sensor through a pull-up resistor. When the transmission fluid temperature is low, the sensor resistance increases, and the PCM detects a high signal voltage. As the transmission fluid temperature rises, the sensor resistance decreases and the PCM detects a low signal voltage. When the transmission fluid temperature sensor signal voltage to the PCM is below specification, indicating that the temperature is above specification (a short to ground), the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0712 Acura - Transmission Fluid Temperature Sensor Short Circuit - AutoCodes.com — P0712 Acura Code - Transmission Fluid Temperature Sensor Short Circuit

What does this mean?

What are the Possible Causes of the DTC P0712 Acura?

Faulty Transmission Fluid Temperature Sensor
Transmission Fluid Temperature Sensor harness is open or shorted
Transmission Fluid Temperature Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0712 Acura?

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 P0712 Acura 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 P0712 Acura Code

1. What does OBDII code P0712 mean for an Acura?

Code P0712 indicates a short circuit in the Transmission Fluid Temperature (TFT) Sensor circuit, which affects the transmission's ability to monitor and adjust fluid temperature.

2. What are common symptoms of P0712 on an Acura?

Symptoms may include erratic or harsh shifting, transmission overheating, poor fuel efficiency, and activation of the check engine light.

3. What causes code P0712 in an Acura?

Possible causes include a faulty TFT sensor, damaged wiring or connectors, short circuits in the sensor circuit, or issues with the transmission control module (TCM).

4. Can driving with code P0712 damage my Acura’s transmission?

Yes, ignoring P0712 can lead to transmission overheating or improper shifting, which may cause long-term damage to the transmission.

5. How do you diagnose P0712 on an Acura?

Diagnosis involves scanning for codes, inspecting the TFT sensor, checking wiring and connectors for shorts or damage, and testing the sensor’s electrical resistance.

6. How is P0712 fixed on an Acura?

Repairs may include replacing the TFT sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the TCM if necessary.

7. How much does it cost to fix P0712 on an Acura?

The cost varies depending on the specific repair, ranging from $150-$400 for a sensor replacement to higher costs if extensive wiring or TCM repairs are needed.

8. Can I reset the P0712 code without fixing the issue?

While you can clear the code temporarily, the underlying problem will likely cause the code to return and potentially worsen transmission performance.

9. How does the TFT sensor affect transmission performance?

The TFT sensor helps the TCM adjust shifting patterns and fluid pressure based on temperature; a malfunction can lead to poor shifting and transmission damage.

10. Is P0712 a common issue for Acura vehicles?

While not exceedingly common, P0712 can occur in Acura models due to wear and tear on the TFT sensor or wiring issues over time.