P1775 Solenoid switch valve stuck in the torque converter clutch position

Transmission solenoid switch valve latched in TCC position (Dodge)

Severity not verified — if the car runs badly, have it inspected

The only readout we have for this code on a Dodge came with a high transmission temperature code and a dealer recommendation to rebuild or replace the transmission, but we found no manufacturer guidance on how urgent the code alone is.

It gets more serious if:

  • Inspect soon: Get it inspected soon if a transmission temperature code (P0218) is also stored, or if the transmission goes into limp mode or slips; the one dealer readout we found paired P1775 with P0218.

Source: how we rate severity

P1775 in short

On Dodge trucks such as the Dakota, P1775 means the transmission's solenoid switch valve is stuck in the torque converter clutch position. The one dealer readout we found came with a transmission over-temperature code. We have no sourced fix order, so have the transmission scanned and its fluid checked before driving far.

The transmission computer commands a solenoid switch valve inside the valve body to route fluid between circuits. When the computer sees that the valve is not where it asked it to be, and it is stuck in the torque converter clutch position, it stores this code.

In the one complaint we read (a 2006 Dodge Dakota), the dealer's scan showed this code together with a transmission high-temperature code, and the shop proposed removing the transmission to find an internal failure or replacing it. That is one vehicle's story, not a pattern, and we found no Dodge bulletin that names P1775.

This page covers Dodge only. Other makes use P1775 for unrelated faults (Hyundai and Kia hybrids, for example, use it for transmission or oil pump electronics), so do not apply this meaning to them.

Pick your make

P1775 is a manufacturer-specific code: its meaning depends on who built the car.

Other makes: meaning not verified. Check with a scan tool that reads manufacturer definitions.

Most likely causes

These are general causes for this code across vehicles. None is specific to one make or model.

  1. Solenoid switch valve latched inside the valve body

    Possible — needs testing
    Why it ranks here
    This is what the code definition describes. The one dealer diagnosis we read went straight to internal transmission work, but it does not say which part failed.
    What would change this
    A clean fluid and no other transmission codes make a stuck valve less likely to be a wider failure; the code returning right after a clear points toward the valve body.

  2. Overheated or degraded transmission fluid

    Possible — needs testing
    Why it ranks here
    The dealer readout also stored a transmission over-temperature code, so heat damage is plausible, but the complaint does not show it was the cause.
    What would change this
    Burnt-smelling or dark fluid, or a stored P0218, raises this.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Read all stored codes and freeze-frame data and note whether a transmission temperature code (P0218) is stored with P1775.

    Low riskTool: scan tool

    • IfP0218 is stored as well

      It meansHeat is part of the picture; check fluid level and condition next.

      Go to step 2

    • IfP1775 is the only transmission code

      It meansStill check the fluid, then clear the code and see if it returns.

      Go to step 2

  2. Check the transmission fluid level and condition using the procedure in the owner manual.

    Use caution

    Warning:Some transmissions must be checked at operating temperature with the engine running; hot fluid and moving parts can burn or injure.

Symptoms

  • Check engine light on
  • Transmission limp mode or harsh shifting Gets more serious: stop and have it checked.
  • Transmission over-temperature warning or code Gets more serious: stop and have it checked.

How to fix

  1. Check the transmission fluid level and condition as the owner manual describes.

    Warning:Follow the manual for the correct temperature and engine state; hot fluid can burn.

Parts and cost context

  • Transmission control module (TCM):The code describes a valve inside the transmission, so a control module is not the first suspect; labor varies, get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Dodge

  • 2006 · Dakota

    Supported by vehicle data

    The 2006 Dakota complaint we read paired P1775 with a transmission high-temperature code and a dealer recommendation to rebuild or replace the transmission at about 72,000 miles.

  • P1776Solenoid switch valve stuck in the low/reverse position

    Same system Common general cause

    On Chrysler-group transmissions P1776 is the same kind of fault with the switch valve stuck in the low/reverse position instead of the torque converter clutch position.

All Transmission codes

Sources and review

  1. NHTSA complaint ODI 10314835: 2006 Dodge Dakota, transmission codes P1775 and P0218 — NHTSA
  2. P1775 trouble code definitions by manufacturer — troublecodes.net
  3. P1776 fault code definitions by manufacturer — troublecodes.net
Last reviewed
Written by
Saurabh K.
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