01 How to Calibrate Your Car’s Sensors After Repairs (ABS, TPM… • 02 Engineers Reveal Why Most Car Doors Are Designed To Rip Apa… • 03 C0051: LF Wheel Speed Sensor Circuit Range or Performance (… • 04 10 Crucial Insights into Oxygen Sensors, Common Problems, a… • 05 This Is How Wet Brakes Or A Wet Clutch Signal Urgent Mainte… • 06 The Secret To Detecting Car Issues Before They Happen • 07 The Secret ECU Behavior That Protects Your Engine Without W… • 08 P0302 – Cylinder 2 Misfire: Performance and Vibration Issues • 09 Your Car Might Be Heading For Total Failure Because Of One … • 10 Ford’s Iconic Blue Oval Logo Gets a Refresh •

DTC codes / P07xx · Transmission / P076C

P076CShift Solenoid H Stuck On

P076C indicates that the transmission control module has commanded shift solenoid H to turn off, but the solenoid circuit remains energized or the solenoid is mechanically stuck in the on position. The computer detects this by comparing the commanded solenoid state to the actual state reported through the solenoid circuit or hydraulic pressure switch.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaTransmission

Symptoms you may notice

  • The check engine light or transmission warning light is illuminated, often with no other symptoms besides the warning light
  • Harsh or delayed shifts, especially when the affected gear is engaged or disengaged
  • The transmission may stay in a single gear or enter limp mode
  • Slipping or flaring during gear changes
  • Poor fuel economy or unusual engine RPM at highway speeds
  • In some cases, the vehicle may not move when placed in gear

Common causes, most likely first

  1. Shift solenoid H internally shorted or stuck mechanically in the on position
  2. Damaged or chafed wiring in the solenoid circuit causing a short to power
  3. Corroded or loose electrical connector at the solenoid or transmission case
  4. Transmission control module internal fault holding the solenoid ground circuit continuously
  5. Valve body wear or debris causing the solenoid valve to remain open
  6. Contaminated transmission fluid or low fluid level affecting solenoid operation
  7. Failed pressure switch or sensor that falsely reports the solenoid state

How to diagnose and fix it

  1. Check transmission fluid level and condition; top off or replace fluid if contaminated
  2. Inspect the solenoid H electrical connector and wiring for damage, corrosion, or shorts
  3. Use a scan tool to command solenoid H on and off while monitoring circuit voltage or current
  4. Measure resistance of solenoid H and compare to manufacturer specifications
  5. Test the solenoid circuit for a short to power with a multimeter or test light
  6. Remove the transmission pan and inspect the solenoid and valve body for debris or mechanical binding
  7. Replace shift solenoid H or the solenoid pack if tests confirm an internal fault, then clear codes and verify operation

Don't assume the solenoid is bad

  • A shorted wiring harness between the transmission and control module can mimic a failed solenoid, so always inspect the full circuit before replacing parts.
  • Debris in the valve body can hold the solenoid valve open even when the electrical solenoid is functioning correctly, leading to a false P076C.
  • Some vehicles use a single solenoid pack where one failed solenoid can affect multiple gears, so check for related codes before condemning individual components.
  • A faulty transmission control module can hold the solenoid ground circuit active, causing a stuck-on condition that no solenoid replacement will fix.
  • After repairs, the transmission may need a relearn or adaptive reset procedure to restore proper shift quality and prevent the code from returning.

Can I keep driving with P076C?

Driving with P076C can lead to harsh shifts or limp mode, which may be unsafe in traffic, so limit driving to a short distance to a repair shop. Avoid heavy acceleration or towing until the fault is repaired.

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.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage