P076A
Shift Solenoid H.
- Generic
- Powertrain
- Generic code
- Medium severity
How this code is built
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- 7
- AreaTransmission
- 6A
- FaultThe specific fault in that area
What it means
P076A is a generic transmission code relating to shift solenoid H in the automatic gearbox. The transmission control unit has detected a fault with this solenoid or its circuit, such as an electrical fault, or the solenoid not behaving as commanded so that the expected gear or ratio is not achieved. The exact fault wording and the gears the solenoid controls depend on the gearbox, so confirm the full description and the solenoid's role in the manufacturer's data.
Symptoms
- Gearbox warning light or malfunction message on the dash
- Harsh, delayed or flared gear changes
- Gearbox stuck in one gear (limp mode)
- Loss of certain gears or incorrect gear selection
- Engine management light on
- Poor acceleration or higher fuel consumption
Possible causes
- Faulty shift solenoid H (sticking, worn or failed electrically)likely
- Damaged wiring or poor connector contact in the solenoid circuit or internal gearbox harnesslikely
- Low, degraded or contaminated transmission fluid causing the solenoid or valve body to sticklikely
- Debris or wear in the valve body restricting solenoid operation or fluid pressurepossible
- Low battery or charging system voltage affecting solenoid operationpossible
- Fault in the transmission control unit or an outdated calibration (model dependent, check for manufacturer updates)rare
How to diagnose
- Read all stored codes and freeze frame data, noting gear, temperature, speed and load when the code set, and check for other gearbox or network codes
- Check the transmission fluid level, condition and smell, following the manufacturer's procedure for that gearbox
- Check battery condition and charging voltage, as low voltage can cause false solenoid faults
- Inspect the gearbox connector and external wiring for damage, corrosion, moisture, fluid ingress or chafing
- Measure solenoid resistance and check the circuit for continuity, short to earth or short to supply against manufacturer specifications
- Use live data and an active test to command the solenoid and compare the commanded and actual gear ratio or pressure
- Check for technical service bulletins or calibration updates for the model and gearbox
- If fluid is contaminated, inspect the pan and filter for debris before deciding on valve body work
How to fix
- Repair or replace damaged wiring or connectors, including the internal harness if faulty
- Replace shift solenoid H, or the solenoid pack where it is supplied as an assembly
- Change the transmission fluid and filter to the specified type if it is low, degraded or contaminated
- Clean or overhaul or replace the valve body if worn or blocked
- Correct battery or charging faults
- Update the transmission control unit calibration only where a known fault with the existing software is confirmed
Can I keep driving?
The car may be driveable, but the gearbox may go into limp mode or shift harshly, and continued use can cause further wear. Get it diagnosed soon and avoid long journeys or heavy loads until it is fixed.
Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.
