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DTC codes / P07xx · Transmission / P0769

P0769Shift Solenoid 'D' Intermittent

P0769 indicates that the transmission control module has detected an intermittent electrical fault in the circuit for shift solenoid D, which controls a specific gear change in the automatic transmission. The computer monitors the solenoid's current draw and response time, and it sets this code when the signal drops out or behaves erratically without being completely open or shorted.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaTransmission

Symptoms you may notice

  • Illumination of the check engine light or transmission warning light
  • Harsh or delayed shifts, especially when changing into the gear controlled by solenoid D
  • Transmission may slip or fail to engage certain gears intermittently
  • The vehicle may enter limp mode, limiting speed and gear selection
  • Often no symptoms besides the warning light, especially in early stages

Common causes, most likely first

  1. Faulty shift solenoid D with an intermittent internal coil failure
  2. Damaged or corroded wiring harness or connector at the solenoid
  3. Poor electrical connection at the transmission control module
  4. Contaminated transmission fluid causing solenoid sticking or erratic operation
  5. Internal transmission mechanical wear affecting solenoid performance
  6. Loose or damaged ground connection for the transmission circuit

How to diagnose and fix it

  1. Check transmission fluid level and condition; top off or replace if contaminated
  2. Inspect the solenoid D electrical connector and wiring for damage or corrosion
  3. Perform a resistance test on solenoid D and compare to manufacturer specifications
  4. Check for stored codes in other modules and verify power and ground at the solenoid
  5. Use a scan tool to command solenoid D on and off while monitoring circuit performance
  6. Replace shift solenoid D if electrical tests indicate an intermittent fault
  7. Clear codes and perform a road test to verify the repair

Intermittent Solenoid D Faults Are Tricky

  • An intermittent fault often does not appear during a simple resistance check, so a wiggle test of the harness while monitoring live data is essential.
  • Contaminated transmission fluid can cause solenoid D to stick intermittently without setting a fluid-related code, so always assess fluid condition first.
  • A poor ground connection at the transmission case can mimic a failing solenoid D and is frequently overlooked during diagnosis.
  • The code may be stored alongside other shift solenoid codes if the root cause is a shared power or ground circuit rather than the solenoid itself.

Can I keep driving with P0769?

You can usually drive the vehicle short distances to a repair shop, but avoid aggressive acceleration or heavy loads because intermittent solenoid failure can cause harsh shifts or sudden limp mode. If the transmission slips severely or fails to engage gears, stop driving and seek professional assistance.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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