Faulty shift solenoid H itself, such as a burned coil or internal short.; Damaged or corroded wiring harness or connector at the solenoid or TCM.; Open or short circuit in the solenoid control circuit, including chafed wires.; Poor electrical connection at the transmission pass-through connector.; Contaminated transmission fluid causing solenoid malfunction or sticking.; TCM internal fault, though less common.; Low transmission fluid level or degraded fluid affecting solenoid operation.

DTC codes / P07xx · Transmission / P076D

P076DShift Solenoid H Electrical

Q: What does code P076D mean?

Shift Solenoid H Electrical. P076D indicates that the transmission control module (TCM) has detected an electrical fault in the circuit for shift solenoid H, which is one of the solenoids that controls hydraulic pressure for gear shifts. The TCM monitors the solenoid's electrical current and voltage and sets this code when the readings fall outside the expected range, signaling an open, short, or excessive resistance in the solenoid or its wiring.

P076D indicates that the transmission control module (TCM) has detected an electrical fault in the circuit for shift solenoid H, which is one of the solenoids that controls hydraulic pressure for gear shifts. The TCM monitors the solenoid's electrical current and voltage and sets this code when the readings fall outside the expected range, signaling an open, short, or excessive resistance in the solenoid or its wiring.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Symptoms you may notice

Illumination of the check engine light or transmission warning light, often with no other noticeable symptoms.
Harsh or delayed gear shifts, especially when shifting into or out of certain gears.
Transmission may enter limp mode, limiting vehicle speed and gear selection.
Slipping or flaring during acceleration as the affected gear fails to engage properly.
Erratic shifting patterns or inability to shift into overdrive.
In some cases, the vehicle may start in a higher gear or refuse to downshift.

Common causes, most likely first

Faulty shift solenoid H itself, such as a burned coil or internal short.
Damaged or corroded wiring harness or connector at the solenoid or TCM.
Open or short circuit in the solenoid control circuit, including chafed wires.
Poor electrical connection at the transmission pass-through connector.
Contaminated transmission fluid causing solenoid malfunction or sticking.
TCM internal fault, though less common.
Low transmission fluid level or degraded fluid affecting solenoid operation.

How to diagnose and fix it

Check transmission fluid level and condition; top off or replace if contaminated.
Inspect the solenoid H electrical connector and wiring for corrosion, damage, or loose pins.
Measure the resistance of solenoid H with a multimeter and compare to manufacturer specifications.
Test the solenoid circuit for continuity and short to ground or power using a wiring diagram.
If resistance is out of spec, replace solenoid H and clear the code.
If wiring is faulty, repair or replace the affected harness section.
After repair, clear codes and perform a road test to verify proper operation and ensure the code does not return.

What the code does not always mean

A P076D code is often set by a simple loose or corroded connector rather than a failed solenoid, so always inspect the wiring before condemning the solenoid.
Contaminated transmission fluid can cause solenoid H to stick or draw excessive current, mimicking an electrical failure; fluid condition should be checked first.
Some vehicles use shift solenoid H for multiple functions, so a failure may affect several gears, but the code specifically points to the electrical circuit, not hydraulic issues.
A faulty TCM can set this code erroneously, but it is rare; always rule out wiring and solenoid issues before replacing the TCM.
Intermittent codes may be caused by vibration or temperature changes affecting a marginal connection, so wiggle-test the harness while monitoring live data.

Can I keep driving with P076D?

If the vehicle is in limp mode or shifting harshly, avoid highway driving and seek repair promptly to prevent transmission damage. If only the warning light is on and the vehicle drives normally, you can drive cautiously to a repair shop, but avoid heavy acceleration or towing.

Tools that help

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