P0705 - Transmission Range Sensor Circuit Malfunction in Popular Vehicles

Quick Answer

P0705 means: DTC P0705 means there's an issue with the transmission range sensor circuit.

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

Can I drive with P0705? Immediate attention is required to avoid transmission damage and ensure vehicle safety.

Common Questions

What does P0705 mean and how does it affect my car?

DTC P0705 indicates a problem with the transmission range sensor circuit, which can prevent proper gear shifting and impact vehicle performance. If ignored, it may lead to more severe transmission issues and costly repairs.

What are the most common causes of P0705 and how much does it cost to fix?

The most frequent cause is a faulty transmission range sensor, with repair costs typically ranging from $150 to $300. Other causes include damaged wiring and ECM issues, which can vary in cost depending on the severity.

Can I drive my car with P0705 or should I stop immediately?

It is not safe to drive your car if you see the P0705 code. Continuing to drive could lead to further transmission damage, which can be both dangerous and expensive to repair.

How can I diagnose P0705 myself using GeekOBD APP?

To diagnose P0705, use the GeekOBD APP to scan for trouble codes and review freeze frame data. Follow the diagnostic steps outlined, paying special attention to the transmission range sensor and wiring.

What vehicles are most commonly affected by P0705?

Vehicles such as the 2014-2018 Honda Accord, 2010-2015 Ford Fusion, and 2013-2017 Chevrolet Malibu are frequently affected by P0705, often leading to recalls or technical service bulletins for related issues.

How can I prevent P0705 from happening again?

Regular maintenance checks of your transmission system, ensuring wiring is intact, and keeping the vehicle's software updated can help prevent the recurrence of P0705.

What is P0705?

DTC P0705 indicates a malfunction in the transmission range sensor circuit, which is crucial for the proper functioning of your vehicle's transmission system. Found commonly in vehicles such as the 2014-2018 Honda Accord and 2010-2015 Ford Fusion, this code can lead to significant issues, including erratic shifting patterns or the inability to shift gears altogether. The transmission range sensor, also known as the neutral safety switch, tells the engine control module (ECM) what gear the transmission is in. When this sensor fails or its circuit is disrupted, it can cause the transmission to behave unpredictably. For example, your vehicle may refuse to shift into drive or reverse, which can be a major safety hazard. Moreover, if left unaddressed, this issue can lead to further transmission damage, costly repairs, and inconvenience. Therefore, understanding the implications of DTC P0705 is essential for maintaining your vehicle's performance and safety.

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

Symptoms

Common symptoms when P0705 is present:

  • Check engine light stays on constantly, indicating a fault that should not be ignored.
  • Transmission may not shift into gear smoothly, causing hesitation or lurching during acceleration.
  • Fuel economy may decrease by 10-15%, leading to increased operational costs due to inefficient engine performance.
  • Vehicle may exhibit erratic shifting patterns, such as slipping between gears or failing to engage in drive or reverse.
  • In some cases, the vehicle may not start at all, as the range sensor plays a role in the starting process.

Possible Causes

Most common causes of P0705 (ordered by frequency):

  1. The most common cause of DTC P0705 is a faulty transmission range sensor, with a likelihood of around 60%. This can occur due to wear and tear or electrical issues.
  2. A second potential cause is damaged or frayed wiring in the sensor circuit, which can lead to intermittent connections or shorts.
  3. A third cause may involve issues with the ECM itself, where software glitches or internal faults can misinterpret sensor signals. Regular updates and checks can prevent this.
  4. Less commonly, the issue could stem from a malfunctioning transmission control module (TCM), which may require reprogramming or replacement.
  5. In rare cases, environmental factors such as water intrusion into the transmission system can cause sensor failures.

P0705 Repair Costs

Cost Breakdown by Repair Type

Transmission Range Sensor Replacement

Replacing the faulty transmission range sensor to restore proper transmission function.

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

Repairing or replacing damaged wires in the sensor circuit to ensure proper connectivity.

  • Total: $100 - $200
  • Success rate: 75%
ECM Reprogramming or Replacement

Reprogramming the ECM if it misinterprets sensor signals or replacing it if faulty.

  • Total: $300 - $800
  • Success rate: 90%
Money-Saving Tips for P0705
  • 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 P0705 Diagnosis Process

Follow these systematic steps to accurately diagnose P0705. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform an initial visual inspection - Check for damaged wiring, loose connections, or corrosion around the transmission range sensor and its connectors (5-10 minutes)

Step 1: Perform an initial visual inspection - Check for damaged wiring, loose connections, or corrosion around the transmission range sensor and its connectors (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: Conduct an OBD2 scan using the GeekOBD APP - Retrieve all diagnostic trouble codes and freeze frame data to understand the context of the fault (10-15 minutes)

Step 2: Conduct an OBD2 scan using the GeekOBD APP - Retrieve all diagnostic trouble codes and freeze frame data to understand the context of the fault (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: Test the components - Use a multimeter to measure voltage and resistance across the transmission range sensor to ensure it operates within specifications (20-30 minutes)

Step 3: Test the components - Use a multimeter to measure voltage and resistance across the transmission range sensor to ensure it operates within specifications (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: Run a system function test - After addressing any issues, verify proper operation of the transmission by conducting a function test and clearing any codes (10-15 minutes)

Step 4: Run a system function test - After addressing any issues, verify proper operation of the transmission by conducting a function test and clearing any 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: Perform a road test - Drive the vehicle under various conditions to ensure that the repair was successful and the transmission operates as intended (15-20 minutes)

Step 5: Perform a road test - Drive the vehicle under various conditions to ensure that the repair was successful and the transmission operates as intended (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 Range Sensor Replacement on 2015 Honda Accord

Vehicle: 2015 Honda Accord, 80,000 miles

Problem: Customer reported that the vehicle was slipping out of gear and showing a check engine light.

Diagnosis: Diagnostic scan revealed DTC P0705, indicating a faulty transmission range sensor. Visual inspection confirmed corroded wiring connections.

Solution: Replaced the transmission range sensor and repaired the wiring harness.

Cost: $250 (Parts: $150 for sensor, $100 for labor)

Result: Customer reported that the vehicle shifted smoothly, and the check engine light was cleared successfully.

Case Study 2: Wiring Repair on 2013 Ford Fusion

Vehicle: 2013 Ford Fusion, 65,000 miles

Problem: Customer experienced erratic shifting and a persistent check engine light.

Diagnosis: After scanning for codes, P0705 was confirmed. A visual inspection showed frayed wiring in the sensor circuit.

Solution: Repaired the damaged wiring and tested the sensor functionality.

Cost: $180 (Parts: $80 for wiring, $100 for labor)

Result: Vehicle performance returned to normal, and no further issues were reported.

Diagnose P0705

Use GeekOBD APP for professional diagnosis!

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Code Information

Code: P0705
System: Powertrain (Engine, Transmission, Emissions)
Severity: HIGH
Category: Engine Codes