P0772 - Transmission Fluid Pressure Sensor Range/Performance Problem in 2005-2015 Honda Accord and More

Quick Answer

P0772 means: P0772 indicates a problem with the transmission fluid pressure sensor's range or performance.

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

Can I drive with P0772? Immediate attention is recommended to prevent potential transmission damage.

Common Questions

What does P0772 mean and how does it affect my car?

P0772 indicates a malfunction with the transmission fluid pressure sensor. This can cause severe transmission issues, such as slipping gears, delayed shifting, or erratic performance. If not fixed, it can lead to costly repairs and unsafe driving conditions.

What are the most common causes of P0772 and how much does it cost to fix?

The most common causes include a faulty transmission fluid pressure sensor, a malfunctioning TCM, or low transmission fluid levels. Repair costs can range from $150 for sensor replacement to $1,000 for TCM repairs.

Can I drive my car with P0772 or should I stop immediately?

It is not advisable to drive with a P0772 code as it can lead to further transmission damage and potential safety hazards. It's best to address this code immediately.

How can I diagnose P0772 myself using GeekOBD APP?

Using the GeekOBD APP, you can perform an OBD2 scan to retrieve trouble codes and view freeze frame data. This information will help you understand when the error occurred and assist in pinpointing the malfunction.

What vehicles are most commonly affected by P0772?

Common vehicles affected by the P0772 code include the 2005-2015 Honda Accord, 2006-2012 Ford Fusion, and various 2007-2014 Toyota Camry models. Always check for any related recalls or technical service bulletins (TSBs) for these models.

How can I prevent P0772 from happening again?

Regular maintenance, including timely fluid changes and inspections, can help prevent P0772. Make sure to check the transmission fluid level regularly and address any leaks or unusual noises promptly.

What is P0772?

The P0772 diagnostic trouble code (DTC) indicates a problem with the transmission fluid pressure sensor, specifically a range or performance issue. This code is common in vehicles like the 2005-2015 Honda Accord, Ford Fusion, and various Toyota models. The transmission fluid pressure sensor plays a critical role in monitoring the hydraulic pressure inside the transmission, which is vital for smooth gear shifting. When the sensor detects that the pressure is outside the expected range, it triggers the P0772 code. This can lead to erratic shifting, slipping gears, or even complete transmission failure if not addressed promptly. Ignoring this code could result in more severe transmission damage, costly repairs, and unsafe driving conditions. Symptoms often include the check engine light illuminating, unusual noises during shifting, or a noticeable delay in gear changes. It's essential to address this issue quickly to maintain the vehicle's performance and prolong the life of the transmission.

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

Symptoms

Common symptoms when P0772 is present:

  • Check engine light stays on constantly, indicating a persistent issue with the transmission.
  • Transmission hesitates during acceleration, causing a noticeable lag when shifting gears.
  • Fuel economy decreased by 10-15%, as the engine works harder to compensate for transmission inefficiencies.
  • Unusual noises, such as grinding or whining, may occur while shifting, signaling potential mechanical failure.
  • Transmission slips out of gear unexpectedly, which can pose a serious safety risk while driving.

Possible Causes

Most common causes of P0772 (ordered by frequency):

  1. The most common cause of P0772 is a faulty transmission fluid pressure sensor, occurring in about 60% of cases. Inspecting wiring and connectors for damage is crucial.
  2. A malfunctioning transmission control module (TCM) can also trigger this code. The TCM interprets signals from the pressure sensor, and if it fails, it may misread or ignore pressure levels.
  3. Low transmission fluid levels can contribute to erratic pressure readings. Regularly checking and maintaining proper fluid levels can help prevent this issue.
  4. Physical damage to the transmission or internal components can create pressure inconsistencies, leading to this code. Look for signs of leaks or wear.
  5. Rarely, software issues within the vehicle's computer system can cause false readings from the sensor, though this is less common compared to hardware issues.

P0772 Repair Costs

Cost Breakdown by Repair Type

Sensor Replacement

Replacing the faulty transmission fluid pressure sensor is the most common repair for P0772.

  • Total: $150 - $300
  • Success rate: 90%
Transmission Fluid Change

If fluid levels are low, a transmission fluid change may be necessary to ensure proper function.

  • Total: $100 - $200
  • Success rate: 70%
Transmission Control Module Repair

If the TCM is malfunctioning, reprogramming or replacing it may be required.

  • Total: $300 - $1,000
  • Success rate: 85%
Money-Saving Tips for P0772
  • 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 P0772 Diagnosis Process

Follow these systematic steps to accurately diagnose P0772. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (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: OBD2 scan with GeekOBD APP - Retrieve all trouble codes and freeze frame data to understand the context of the fault (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all 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: Component testing - Use a multimeter to test the voltage and resistance of the transmission fluid pressure sensor, ensuring it operates within manufacturer specifications (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the voltage and resistance of the transmission fluid pressure sensor, ensuring it operates within manufacturer 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: System function test - Verify proper operation of the transmission after repairs and clear codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation of the transmission after repairs and clear codes using the GeekOBD APP (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 verification - Drive the vehicle under various conditions to confirm repair success and ensure no additional codes appear (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure no additional codes appear (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 Fluid Pressure Sensor Replacement in 2010 Honda Accord

Vehicle: 2010 Honda Accord, 85,000 miles

Problem: Customer reported check engine light and slipping transmission.

Diagnosis: Using the GeekOBD APP, retrieved the P0772 code. Visual inspection revealed damaged wiring to the sensor.

Solution: Replaced the transmission fluid pressure sensor and repaired the wiring harness.

Cost: $250 (sensor: $120, labor: $130)

Result: Check engine light cleared, and the transmission functioned normally after the repair.

Case Study 2: Fluid Change and Sensor Test on 2008 Ford Fusion

Vehicle: 2008 Ford Fusion, 112,000 miles

Problem: Customer experienced delayed shifts and poor acceleration.

Diagnosis: P0772 code confirmed via GeekOBD APP. Fluid was low and dirty, and the sensor seemed to work intermittently.

Solution: Performed a transmission fluid change and replaced the fluid pressure sensor.

Cost: $320 (fluid change: $120, sensor: $200)

Result: Transmission performance improved significantly, and no further codes appeared.

Diagnose P0772

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: P0772
System: Powertrain (Engine, Transmission, Emissions)
Severity: HIGH
Category: Engine Codes