P0747 Code Meaning and Next Steps

First checks take 10 to 20 minutes for the first checks. No special tools are usually needed for the first checks.

Can you keep driving?

Stop driving if any of these apply

!The transmission slips, bangs into gear, or will not shift correctly.
!The vehicle loses drive, enters limp mode, or the warning light is paired with obvious transmission trouble.

If the light is steady and the vehicle still drives normally: Maybe, but only for a short distance if the transmission still shifts normally.

What to check first

Step-by-step checks

1
Free - no tools
Check whether P0741 is the only code present or whether misfire, fuel-trim, or oxygen-sensor codes are stored as well
2
Free - no tools
Notice any sulfur smell, loss of power, or exhaust rattle before assuming the converter itself is dead
3
Basic tool needed
Listen for exhaust leaks near the manifold, flex pipe, or front pipe, especially if recent exhaust work was done
4
Basic tool needed
If scan data is available, compare upstream and downstream oxygen-sensor activity before buying parts
5
Basic tool needed
Treat any active misfire or fueling fault as the first repair path before condemning the converter

If the code returns

-If related codes are present, diagnose the broader fault pattern before replacing parts on this code alone.
-If the code returns immediately after clearing, focus on an active fault rather than an old stored event.
-If the system behaves normally but the code keeps returning, scan-data comparison becomes more useful than another visual check.

Background

What this code means

P0747 is a generic OBD-II code for the torque converter clutch circuit or performance path.

Treat it as a starting point rather than a guaranteed converter replacement. Upstream engine-running faults, fluid issues, wiring, or valve-body control problems can all influence the result.

Diagnosis

Common causes

Most common

Converter clutch wear or failure

The clutch may no longer lock or release the way the ECU expects.

Common

Transmission fluid or pressure issue

Low or degraded fluid can stop the clutch from applying correctly.

Common

Solenoid or control problem

The valve body or control circuit may not be applying the clutch as commanded.

Possible

Upstream engine fault

Misfires or mixture problems can make the converter test fail even when the converter is not the root cause.

Avoid these mistakes

What not to do

xDo not assume the converter is dead before checking for engine-running faults, fluid condition, or related transmission codes.
xDo not keep driving if the transmission starts slipping, shuddering badly, or failing to stay in gear.

Parts

Parts that may need replacing

PartTypical costNotes

Transmission fluid service$80-$250Worth checking before assuming a converter failure.

Torque converter clutch solenoid or valve-body repair$150-$900Relevant when the apply/release control path is the problem.

Torque converter$500-$1,500+Only after the simpler engine, fluid, and control checks are ruled out.

Related OBD codes

P0745

P0745 usually means pressure control solenoid A malfunction.

P0746

P0746 usually means pressure control solenoid A performance or stuck off.

P0748

P0748 usually means pressure control solenoid A electrical problem.

Source notes

Generic OBD-II (SAE J1979 / ISO 15031-5). These converter-clutch codes were seeded from dtcdb and then expanded around common clutch, fluid, and control-side faults.

This guide is written as a generic multi-make reference, so bulletin history, sensor locations, and repair order can still change by manufacturer and engine family.

This is generic OBD-II guidance and should not override vehicle-specific service information. Exact diagnosis and repair steps vary by make, engine family, and model year.

Last reviewed: 2026-04-10

Reference: Open reference

P0747 - P0747 Usually Means Pressure Control Solenoid a Stuck on