Quick Answer
P0964 means: DTC P0964 indicates a malfunction in the pressure control solenoid performance, affecting transmission fluid pressure.
Can I drive with P0964? It is advisable to seek immediate diagnostics and repairs to prevent transmission damage.
Common Questions
What does P0964 mean and how does it affect my car?
The P0964 code means there's a problem with the pressure control solenoid in your vehicle's transmission. This can lead to shifting issues, reduced performance, and increased wear on transmission components if not addressed quickly.
What are the most common causes of P0964 and how much does it cost to fix?
Common causes include a faulty pressure control solenoid, low transmission fluid, or electrical issues. Repair costs vary but typically range from $300 to $600 for solenoid replacement, with additional costs for fluid changes if necessary.
Can I drive my car with P0964 or should I stop immediately?
While it may be possible to drive your car, it's not advisable. Continuing to drive with this code can lead to more severe transmission problems, so you should seek a diagnosis and repair as soon as possible.
How can I diagnose P0964 myself using GeekOBD APP?
Use the GeekOBD APP to scan your vehicle for trouble codes. Once you retrieve the P0964 code, view the freeze frame data to understand the conditions under which the code was set. This information can guide your next steps.
What vehicles are most commonly affected by P0964?
DTC P0964 frequently appears in models like the 2015-2018 Honda Accord and the 2014-2019 Toyota Camry. Always check for manufacturer recalls or technical service bulletins related to your vehicle.
How can I prevent P0964 from happening again?
Regular maintenance of your transmission, including fluid changes and inspections, can help prevent issues like P0964. Also, pay attention to your vehicle's performance and address any warning lights promptly.
What is P0964?
The diagnostic trouble code P0964 indicates a problem with the pressure control solenoid performance, particularly in vehicles equipped with automatic transmissions. This code typically arises in popular models such as the 2015-2018 Honda Accord and the 2014-2019 Toyota Camry. The pressure control solenoid plays a crucial role in regulating the transmission fluid pressure, which is essential for smooth gear shifting and overall transmission performance. When the Engine Control Module (ECM) detects that the actual pressure does not align with the expected pressure, it triggers the P0964 code. Common symptoms associated with this code may include erratic shifting, slipping gears, or even transmission overheating. Ignoring this issue can lead to severe transmission damage and costly repairs down the line, making it important for car owners to address this problem promptly. Regular diagnostics using tools like the GeekOBD APP can help identify the issue early, allowing for timely repairs and maintenance.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0964 is present:
- Check engine light stays on constantly, indicating an underlying issue that needs attention.
- Engine hesitates during acceleration, which can be frustrating and potentially dangerous.
- Fuel economy decreased by 10-15%, leading to higher operational costs.
- Transmission may slip or hesitate during shifts, causing a jarring driving experience.
- Unusual noises from the transmission area, which may signal impending mechanical failure.
Possible Causes
Most common causes of P0964 (ordered by frequency):
- The most common cause of P0964 is a faulty pressure control solenoid, with a likelihood of around 70%. This solenoid may wear out over time, especially in high-mileage vehicles.
- Another potential cause is low transmission fluid levels or dirty fluid, which can affect the solenoid's performance. Regular fluid checks and changes can prevent this.
- Electrical issues such as damaged wiring or faulty connectors can lead to poor communication between the solenoid and the ECM. Inspecting these components can help prevent this issue.
- Less common but serious causes include a failing transmission control module (TCM), which may require replacement if diagnosed.
- A rare cause could be internal transmission damage, which is much more complex and costly to repair.
P0964 Repair Costs
Cost Breakdown by Repair Type
Pressure Control Solenoid Replacement
Replacing the faulty solenoid to restore proper pressure regulation in the transmission.
- Total: $300 - $600
- Success rate: 85%
Transmission Fluid Change
Changing old or contaminated fluid to restore transmission performance.
- Total: $100 - $200
- Success rate: 70%
Money-Saving Tips for P0964
- 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 P0964 Diagnosis Process
Follow these systematic steps to accurately diagnose P0964. 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, which usually takes about 5-10 minutes
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion, which usually takes about 5-10 minutes.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context. This step generally takes 10-15 minutes.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the pressure control solenoid and associated wiring, taking about 20-30 minutes
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the pressure control solenoid and associated wiring, taking about 20-30 minutes.
Step 4: Step 4: System function test - Verify the proper operation of the solenoid and transmission after repairs, clearing any codes, which usually takes 10-15 minutes
Step 4: System function test - Verify the proper operation of the solenoid and transmission after repairs, clearing any codes, which usually takes 10-15 minutes.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, typically requiring 15-20 minutes
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, typically requiring 15-20 minutes.
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: Pressure Control Solenoid Replacement on a 2017 Honda Accord
Vehicle: 2017 Honda Accord, 75,000 miles
Problem: Customer reported erratic shifting and check engine light.
Diagnosis: Diagnosed with P0964 using GeekOBD APP; pressure control solenoid was faulty.
Solution: Replaced the pressure control solenoid and changed transmission fluid.
Cost: $450 (solenoid $300, fluid change $150)
Result: Shifting issues resolved, and vehicle performance improved significantly.
Case Study 2: Transmission Fluid Change for a 2015 Toyota Camry
Vehicle: 2015 Toyota Camry, 60,000 miles
Problem: Customer complained of decreased fuel efficiency and slipping transmission.
Diagnosis: P0964 detected; low fluid levels were contributing to poor performance.
Solution: Performed a full transmission fluid change and checked solenoid operation.
Cost: $150 (fluid change only)
Result: Fuel economy improved by 10%, and slipping was eliminated.