P076B
Shift Solenoid H Performance/Stuck Off.
- Generic
- Powertrain
- Generic code
- Medium severity
How this code is built
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- 7
- AreaTransmission
- 6B
- FaultThe specific fault in that area
What it means
P076B means the transmission control module has detected that shift solenoid H is not performing as commanded and appears to be stuck off. The module compares the commanded gear or pressure state with the measured response, such as gear ratio, input and output speed or pressure switch feedback, and sets the code when they do not agree. Which gears or functions solenoid H controls depends on the transmission, so the exact effect varies by model.
Symptoms
- Gearbox warning light or engine management light on
- Transmission stuck in one gear (limp mode)
- Harsh, delayed or flaring gear changes
- Missing or unavailable gears
- Slipping or engine revs rising without matching acceleration
- Poor fuel economy or sluggish performance
Possible causes
- Shift solenoid H sticking or failing internally (worn, contaminated or blocked by debris)likely
- Low, degraded or contaminated transmission fluidlikely
- Wiring or connector fault between the solenoid and control module (chafing, corrosion, poor pin tension, fluid ingress)possible
- Blocked transmission filter or restricted valve body passages causing poor hydraulic responsepossible
- Valve body wear or a sticking valve in the circuit controlled by solenoid Hpossible
- Faulty transmission control module or outdated software calibration where a manufacturer update is known for this faultrare
- Internal clutch or seal wear causing a pressure loss that mimics a stuck solenoidrare
How to diagnose
- Read all stored and pending codes and note the freeze frame data (gear, speed, fluid temperature, load) to see when the fault occurs.
- Check transmission fluid level, condition and smell against the manufacturer's procedure, as the method varies by model and some units are sealed.
- Inspect the solenoid harness and connector for damage, corrosion, fluid contamination and loose pins.
- Check for related codes such as other shift solenoid, pressure control or gear ratio faults, and any manufacturer technical bulletins or software updates for this model.
- Use a scan tool to view live data and command the solenoid on and off, checking whether the commanded and actual gear or pressure states agree.
- Measure the solenoid resistance and circuit voltage and compare with the manufacturer's specification for that transmission.
- Inspect the fluid and pan for metal or clutch debris, and if found, plan for internal inspection of the valve body and filter.
How to fix
- Repair or replace damaged wiring or connectors in the solenoid circuit.
- Replace shift solenoid H if it tests faulty or sticks, using the correct part for the transmission.
- Change the transmission fluid and filter with the specified fluid if it is degraded, contaminated or the filter is blocked.
- Clean, repair or replace the valve body if valves are sticking or worn.
- Apply a manufacturer software update or replace the control module only if testing confirms it is at fault.
- Overhaul or replace the transmission if internal wear or debris damage is confirmed.
Can I keep driving?
The car can usually be driven carefully a short distance, but the transmission may be in limp mode and further use risks more wear or damage. Get it diagnosed soon and avoid heavy loads, towing and long journeys until it is fixed.
Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.