P0769 OBD-II Trouble Code: Shift Solenoid D Intermittent

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Cost of diagnosing the P0769 code

P0769 is a diagnostic trouble code (DTC) for "Shift Solenoid D Intermittent". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

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P0769 code definition

When an abnormal voltage reading is detected by the PCM in the shift solenoid D, the P0769 code will be stored.

What the P0769 code means

Shift solenoids are part of the system that manages the fluid transfer between circuits, and allows a vehicle to decelerate and accelerate. These solenoids are important for achieving the commanded vehicle speed, and for actuating optimal engine performance. If a solenoid (in this case, shift solenoid D) is not performing correctly, the PCM will store the P0769 code.

What causes the P0769 code?

The most commonly observed causes of the P0769 code include:

  • Faulty shift solenoid
  • Internal failures in the transmission
  • Low transmission fluid
  • Dirty or contaminated transmission fluid
  • Blocked transmission fluid passages
  • Open or short shift solenoid D valve harness
  • Poor electrical connection within the solenoid D circuit
  • A faulty PCM or TCM, in very rare cases

What are the symptoms of the P0769 code?

In addition to the illuminated Check Engine lamp, some vehicle owners may observe:

  • Decreased fuel efficiency.
  • Harsh shifting.
  • Transmission slippage, or an overheating transmission.
  • Failure to shift into or out of a particular gear.

However, some vehicle owners may observe no symptoms at all.

How does a mechanic diagnose the P0769 code?

After verifying the code with an OBD-II scanner, the mechanic should begin by inspecting the transmission fluid. If the fluid is too low, it needs to be refilled; if the fluid appears dirty, or smells burnt, the system needs to be flushed and refilled with clean fluid. After this, and any other potential repair is complete, the P0769 code should be cleared from the system, and a retest should be performed. If the code does not reappear, the mechanic has successfully diagnosed the issue.

Should the code reappear, the next step is to inspect all electrical components, and replace or repair any that are damaged, loose, corroded, or otherwise inoperable. Inspections of the hydraulic pressure, the shift solenoid function, and all related circuits will be performed next, until the improperly functioning component is found.

Common mistakes when diagnosing the P0769 code

The most common mistake made when diagnosing the P0769 code is replacing the shift solenoid itself, rather than first checking the circuit components for electrical issues.

How serious is the P0769 code?

Even when symptoms are not present, if the P0769 code is being detected, it should be dealt with immediately. This code indicates an issue that directly affects the operation of the vehicle, and could mean that the vehicle may not be operation for much longer, or that more expensive repairs will be needed down the road.

What repairs can fix the P0769 code?

Addressing the P0796 code may include:

  • Replacing faulty shift solenoid
  • Repairing internal failures in the transmission
  • Refilling low, dirty, or contaminated transmission fluid
  • Clearing blocked transmission fluid passages
  • Replacing open or short shift solenoid D valve harness
  • Repairing poor electrical connection within the solenoid D circuit
  • Replacing faulty PCM or TCM, in very rare cases

Need help with a P0769 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

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