P071F - Transmission Temperature Sensor Circuit Performance Problem in Ford and Chrysler Models

Quick Answer

P071F means: P071F indicates a problem with the transmission temperature sensor circuit performance.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with P071F? Immediate attention is recommended to avoid further damage to the transmission.

Common Questions

What does P071F mean and how does it affect my car?

The P071F code indicates a transmission temperature sensor performance issue, which affects the transmission's ability to operate correctly. If not addressed, it could lead to overheating and damage, resulting in costly repairs.

What are the most common causes of P071F and how much does it cost to fix?

Common causes include a faulty temperature sensor, damaged wiring, or a malfunctioning TCM. Repair costs can range from $50 for wiring repairs to $1,200 for TCM replacement, depending on the issue.

Can I drive my car with P071F or should I stop immediately?

It is advised not to drive the vehicle until the issue is resolved, as doing so could lead to further transmission damage and safety hazards.

How can I diagnose P071F myself using GeekOBD APP?

You can use the GeekOBD APP to scan for codes, check live data from the transmission temperature sensor, and help identify any electrical issues with the wiring or connections.

What vehicles are most commonly affected by P071F?

Models from Ford and Chrysler, particularly those manufactured between 2015 and 2020, frequently experience the P071F code, often related to their transmission systems.

How can I prevent P071F from happening again?

Regular maintenance, including fluid changes and inspections of the transmission system, can help prevent issues. Additionally, cleaning electrical connectors can reduce the risk of corrosion-related problems.

What is P071F?

The P071F diagnostic trouble code (DTC) indicates an issue with the transmission temperature sensor circuit performance. Primarily found in various Ford and Chrysler vehicles, this code suggests that the transmission control module (TCM) has detected a performance problem with the transmission fluid temperature sensor circuit. The transmission fluid temperature sensor plays a crucial role in the operation of the transmission by monitoring the temperature of the fluid. If the temperature gets too high, it can lead to transmission failure, decreased performance, and other serious issues. Commonly, this code will trigger when the TCM receives readings that are outside the expected range, indicating a malfunction in the sensor itself or the wiring connected to it. Drivers may notice symptoms such as erratic shifting, overheating, and, in severe cases, the transmission may enter 'limp mode' to prevent damage. Understanding this code is essential for maintaining your vehicle's health, as ignoring it could lead to costly repairs and an unsafe driving experience.

System: P - Powertrain (Engine, Transmission, Emissions)

Symptoms

Common symptoms when P071F is present:

  • Check engine light illuminates consistently, indicating a problem that should not be ignored.
  • Transmission experiences harsh or erratic shifting, which can make driving uncomfortable and may lead to further transmission issues.
  • Engine overheats or transmission fluid temperature rises significantly, often accompanied by a decrease in overall vehicle performance and responsiveness.
  • Decreased fuel efficiency, potentially losing 10-20% of normal fuel economy due to transmission inefficiency and excessive heat generation.
  • The vehicle may enter 'limp mode', restricting speed and performance, which is a safety feature to prevent further damage.

Possible Causes

Most common causes of P071F (ordered by frequency):

  1. The most common cause of the P071F code is a faulty transmission fluid temperature sensor, accounting for approximately 60% of cases. This sensor may fail due to wear and tear, electrical issues, or heat exposure.
  2. Another common issue is damaged wiring or poor connections in the sensor circuit, which can lead to intermittent readings and performance problems. Ensure to inspect the wiring harness for frays or corrosion.
  3. Corrosion or dirt buildup in the connector can also cause the P071F code. Regular maintenance and cleaning of connectors can prevent this issue.
  4. Less common but serious causes include a malfunctioning transmission control module (TCM), which can lead to incorrect readings and need replacement.
  5. In rare cases, issues with the transmission itself could also trigger this code, indicating a more severe problem that requires immediate attention.

P071F Repair Costs

Cost Breakdown by Repair Type

Transmission Fluid Temperature Sensor Replacement

Replacing the faulty transmission fluid temperature sensor.

  • Total: $150 - $300
  • Success rate: 85%
Wiring Repair

Repairing damaged wiring or poor connections in the sensor circuit.

  • Total: $50 - $150
  • Success rate: 90%
Transmission Control Module Replacement

In cases of severe malfunction, replacing the TCM.

  • Total: $500 - $1,200
  • Success rate: 75%
Money-Saving Tips for P071F
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional P071F Diagnosis Process

Follow these systematic steps to accurately diagnose P071F. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform an initial visual inspection under the vehicle to check for damaged wiring, loose connections, or signs of corrosion in the wiring harness (5-10 minutes)

Step 1: Perform an initial visual inspection under the vehicle to check for damaged wiring, loose connections, or signs of corrosion in the wiring harness (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan, retrieving all codes and freeze frame data to understand the fault context better (10-15 minutes)

Step 2: Use the GeekOBD APP to perform an OBD2 scan, retrieving all codes and freeze frame data to understand the fault context better (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Conduct component testing by using a multimeter to check the voltage and resistance of the transmission temperature sensor (20-30 minutes)

Step 3: Conduct component testing by using a multimeter to check the voltage and resistance of the transmission temperature sensor (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: After repairs, perform a system function test to ensure proper operation and clear any diagnostic trouble codes (10-15 minutes)

Step 4: After repairs, perform a system function test to ensure proper operation and clear any diagnostic trouble codes (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test the vehicle under various driving conditions to confirm the repair's success and monitor for recurring issues (15-20 minutes)

Step 5: Road test the vehicle under various driving conditions to confirm the repair's success and monitor for recurring issues (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Transmission Temperature Sensor Replacement in 2016 Ford Fusion

Vehicle: 2016 Ford Fusion, 80,000 miles

Problem: Customer reported the check engine light was on, and the vehicle was experiencing harsh shifting.

Diagnosis: After scanning with GeekOBD, the P071F code was found. A visual inspection revealed a damaged temperature sensor.

Solution: Replaced the faulty transmission temperature sensor and cleared the codes.

Cost: $220 (parts: $150, labor: $70)

Result: The check engine light turned off, and the shifting issues were resolved, improving the driving experience.

Case Study 2: Wiring Repair on 2018 Chrysler 300

Vehicle: 2018 Chrysler 300, 45,000 miles

Problem: Customer complained of intermittent check engine light and overheating during driving.

Diagnosis: P071F was identified. Inspection revealed frayed wiring in the transmission temperature sensor circuit.

Solution: Repaired the damaged wiring and secured connections.

Cost: $120 (parts: $20, labor: $100)

Result: The overheating issue was resolved, and the vehicle operated normally afterward.

Diagnose P071F

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: P071F
System: Powertrain (Engine, Transmission, Emissions)
Severity: HIGH
Category: Engine Codes