P0767
UniversalThe Transmission Control Module (TCM) or Powertrain Control Module (PCM) has detected that Shift Solenoid D is continuously energized or stuck in the 'ON' position when it should be off, preventing proper gear engagement.
High SeverityThis code indicates a malfunction where the Shift Solenoid D in your vehicle's transmission is stuck in the 'on' position, preventing the transmission from shifting gears correctly. This can lead to harsh shifts, delayed engagement, or the inability to select certain gears, significantly impacting drivability.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is securely supported on jack stands if working underneath. Allow the transmission to cool before attempting any work involving fluid. Wear appropriate personal protective equipment, including gloves and eye protection. Disconnect the battery before performing any electrical diagnostics or repairs to prevent accidental shorts or injury.
Common Symptoms
- Check Engine Light illuminated
- Harsh or erratic shifting
- Delayed gear engagement
- Transmission slipping
- Inability to shift into certain gears
- Reduced fuel economy
- Transmission entering 'limp mode'
Common Causes
- Faulty Shift Solenoid D (stuck open or shorted internally)
- Contaminated transmission fluid or low fluid level
- Clogged transmission fluid passages within the valve body
- Electrical short to power in the Shift Solenoid D circuit wiring
- Faulty Transmission Control Module (TCM) or Powertrain Control Module (PCM)
Frequently reported on: Ford F-150 (2004-2008), Honda Accord (2003-2007), Chevrolet Silverado (1999-2006), Toyota Camry (2002-2006), General/Universal
Diagnostic Steps
- Safely lift and support the vehicle.
- Check transmission fluid level and condition. Ensure it is at the correct level and does not appear burnt or excessively dirty.
- Visually inspect the transmission wiring harness and connectors for the Shift Solenoid D. Look for any signs of damage, corrosion, or loose connections.
- With a multimeter, test the resistance of the Shift Solenoid D (refer to your vehicle's service manual for specific values and access procedures, which may require dropping the transmission pan).
- If accessible, check for proper voltage and ground at the solenoid connector with the ignition on, according to your vehicle's wiring diagram.
- If the solenoid tests faulty or the fluid is severely contaminated, replacement of the solenoid and a full transmission fluid and filter change may be necessary (this often requires removing the transmission pan and accessing the valve body).
- Clear the code and test drive the vehicle.
- If the issue persists, further diagnosis of the valve body or TCM/PCM may be required by a professional.
- Dispose of old transmission fluid responsibly.
👨🔧 When to Call a Professional
If after basic checks (fluid level, external wiring) the issue persists or if you are uncomfortable dropping the transmission pan and accessing the valve body, it is highly recommended to consult a professional mechanic. Transmission work is complex and improper repair can lead to further damage.
Commonly Asked Questions
Can I drive with a P0767 code?
Driving with a P0767 code is not recommended. It can cause severe transmission damage, harsh shifting, and potentially leave you stranded. Address it as soon as possible.
How much does it cost to fix P0767?
The cost to fix a P0767 code can vary widely. Replacing a shift solenoid typically costs between $150-$400 for the part, plus 3-6 hours of labor at $75-$150 per hour, totaling $375-$1300. This depends on the vehicle and shop rates.
Is P0767 always a bad solenoid?
While a faulty shift solenoid is a common cause, P0767 can also be triggered by low or contaminated transmission fluid, clogged fluid passages, or electrical issues in the wiring to the solenoid. A thorough diagnosis is essential.
Can I replace a shift solenoid myself?
Replacing a shift solenoid can be an advanced DIY task. It often requires draining transmission fluid, removing the transmission pan, and accessing the valve body. Specialized tools and knowledge are usually needed, and it can be messy. If you're not comfortable, professional help is advised.
What is 'limp mode' and how does it relate to P0767?
'Limp mode' (or 'failsafe mode') is a protective function activated by the vehicle's computer when a serious transmission fault like P0767 is detected. It limits the transmission to a single gear (often 2nd or 3rd) and reduces engine power to prevent further damage, allowing you to drive safely to a repair facility.