P0767 — Shift Solenoid “D” Stuck On #

The code definition may vary slightly depending on the vehicle manufacturer (OEM).

• P0767: Shift Solenoid “D” Stuck On (General/SAE Standard)
• P0767: Shift Solenoid Valve “D” Circuit Stuck On (Toyota, Lexus, Scion)
• P0767: Transmission Shift Solenoid “D” Stuck On (Hyundai, Kia)
• P0767: Shift Solenoid “D” Performance (Nissan, Infiniti)

Summary of code P0767 #

Code P0767 indicates that the engine control module (ECM) or transmission control module (TCM) has detected a malfunction where the shift solenoid “D” is stuck in the “ON” (engaged) position. A shift solenoid is an electro-hydraulic valve within an automatic transmission that controls gear changes by opening and closing fluid passages. When “stuck on,” the solenoid does not disengage as commanded, impacting transmission operation and potentially causing harsh or incorrect shifting. This code often points to either an electrical failure or a hydraulic/mechanical fault inside the transmission. Timely diagnosis and repair are important to avoid further transmission damage.

Common symptoms for code P0767 #

A vehicle displaying P0767 may show a range of transmission-related symptoms, as the shift solenoid “D” plays a critical role in gear selection. The transmission may not shift properly, or the driver might notice performance changes that make the car feel unpredictable or unsafe. These symptoms can appear suddenly or worsen over time, depending on the underlying issue.

• Harsh, delayed, or erratic shifting between gears
• Failure to upshift or downshift as expected
• Transmission stuck in one gear (often limp mode)
• Check Engine Light illuminated
• Possible transmission overheating
• Reduced fuel efficiency

Probable causes for code P0767 (by frequency) #

There are several potential causes for P0767, ranging from electrical issues to internal mechanical faults. The most frequent causes often relate to the solenoid itself or its immediate circuitry, but underlying issues in the transmission can also trigger this code. Here is an ordered list from most to least common:

1. Faulty shift solenoid “D” (electrically or mechanically stuck)
2. Dirty or contaminated transmission fluid (causing solenoid sticking or blockage)
3. Wiring harness or connector problems (open, short, corrosion, damaged pins)
4. Transmission control module (TCM) failure (rare, but possible)
5. Internal transmission failure (valve body wear, hydraulic blockages)

Step-by-step diagnosis for code P0767 #

Diagnosing P0767 involves a systematic approach to determine if the problem is electrical, hydraulic, or mechanical. Using an OEM-level scan tool and following the steps below will help pinpoint the exact cause. Always refer to the vehicle’s service information for specific procedures and safety precautions.

• Check for additional transmission codes that may help guide diagnosis.
• Inspect transmission fluid for proper level, color, and contamination.
• Visually examine the wiring harness and connectors to the transmission and TCM for damage or corrosion.
• Test shift solenoid “D” electrical circuit for continuity and resistance (compare against OEM specs).
• Use a scan tool to command shift solenoid “D” ON/OFF and observe transmission response.
• If accessible, remove and bench test the solenoid for mechanical sticking.
• If the solenoid and wiring check out, consider internal transmission inspection or TCM testing as per OEM guidelines.

Possible repairs for code P0767 #

Once the root cause is confirmed, the following repairs are commonly performed to resolve P0767. Each repair targets a specific cause; not all vehicles will require every action.

• Replace shift solenoid “D” if found faulty (OEM or equivalent part recommended)
• Flush and replace transmission fluid if fluid is dirty or contaminated
• Repair or replace damaged wiring/connectors in the solenoid circuit
• Replace or reprogram the TCM, if diagnosed as failed (rare)
• Internal transmission repair (e.g., valve body service or overhaul), if mechanical failure is found

Is it safe to drive with code P0767? #

Driving with code P0767 is not recommended. While some vehicles may enter a “limp mode” to prevent further damage, this often limits the car to a single gear and reduces performance dramatically. Continuing to drive can cause severe transmission damage and may leave you stranded if the transmission fails completely. It’s best to have the vehicle inspected and repaired as soon as possible.

Vehicles most affected by code P0767 #

While P0767 is a generic OBD-II code, it is frequently reported on certain makes and models, especially those using similar transmission designs. The following vehicles are among those most commonly associated with this code:

• Toyota Camry, Corolla, Highlander, RAV4
• Lexus ES, RX, IS series
• Hyundai Sonata, Elantra, Santa Fe
• Kia Optima, Sorento, Forte
• Nissan Altima, Maxima, Murano
• Infiniti G, Q series

Common mistakes & best practices for code P0767 #

Misdiagnosing P0767 can lead to unnecessary expense and further issues. Technicians and DIYers should avoid jumping to conclusions and follow a thorough diagnostic process. Here are some typical errors and guidelines:

• Replacing the solenoid without checking wiring and fluid condition first
• Ignoring signs of contaminated or burnt transmission fluid
• Overlooking TSBs (Technical Service Bulletins) relevant to the specific vehicle/model
• Not performing a proper scan tool bidirectional test on the solenoid
• Using non-OEM or low-quality replacement parts
• Failing to clear codes and verify repair with a road test

Quick FAQ for P0767 #

Here are quick answers to common questions about P0767:

• Q: Will a simple fluid change fix P0767?
  A: If the cause is contaminated or degraded transmission fluid causing the solenoid to stick, a fluid change may resolve the issue. However, if the solenoid is electrically or mechanically faulty, further repairs will be needed.
• Q: Is P0767 the same as a “transmission failure”?
  A: Not exactly. P0767 points to a specific solenoid problem that can impact shifting, but it does not automatically mean the entire transmission is beyond repair. Early diagnosis can often avoid catastrophic failure.