OBD-II Code · Powertrain
P0756
Shift Solenoid "B" Performance
Severity
high
Left alone, this one tends to take other parts with it.
Can you drive it
Not for long
Driving on this one risks further damage. Get it to a shop rather than carrying on with it.
Indicative cost (USD)
$300–$2,500
Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
Shift B solenoid performance — commanded gear not engaging.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then work the likely-causes list in the order shown.
That order is what a shop checks first for this code — wiring and connections before the component they run to, because a connector costs nothing to inspect and is a common answer.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Missed shifts
- Stuck gear
- Check engine light
Likely causes
- Worn solenoidMost common
- Worn clutch pack
- Low/dirty fluid
Read the full diagnostic procedureP0756 is the performance code for Shift Solenoid B — the solenoid is electrically present and responding to commands, but the shift event it controls…
P0756 is the performance code for Shift Solenoid B — the solenoid is electrically present and responding to commands, but the shift event it controls isn't happening correctly.
Same root-cause matrix as P0751
a stuck shift valve in the valve body (more common than a stuck solenoid), a worn clutch pack that won't apply, a separator-plate gasket cross-feed, or accumulated varnish in the valve bore. Fluid first; burnt fluid with P0756 nearly always means the clutch pack controlled by this solenoid (typically 2-3 or 3-4 depending on application) is wearing or already gone. Live data verification: with the scan tool watching commanded gear and actual ratio, drive through the shift the solenoid controls and watch for the actual ratio to either not change, change to the wrong value, or flare (RPM spike) before settling — flare specifically indicates clutch slippage during apply rather than valve stick. Wet-air testing the valve body off-vehicle separates valve-stick from clutch wear and is the standard ATRA next step before any teardown.
Vehicle-specific patterns2003-2009 Honda Pilot/Odyssey V6 5AT throws P0756 from 3rd-clutch pack failure — same VIN-range TSB issue as P0730/P0731, often rebuild territory pas…
- 2003-2009Honda Pilot/Odyssey V6 5AT throws P0756 from 3rd-clutch pack failure — same VIN-range TSB issue as P0730/P0731, often rebuild territory past 130k.
- 2005-2010GM 4L60E/4L65E throws P0756 from a stuck 2-3 shift valve in the valve body — same Sonnax valve-kit fix as P0751, $40-80 part.
- 2004-2009Aisin AW55-50SN in Volvo/Saab/GM N-body (Saturn Aura, Pontiac G6) throws P0756 from worn valve-body bores — Sonnax oversized-valve kit required, plus the famous TCC apply-relay/wiring issue compounds it.
- 2007-2013Chrysler Town & Country/Journey with the 62TE throws P0756 from a failed solenoid pack/integrated-TCM assembly — replace as a unit per Chrysler bulletin.
Estimated repair$250 (valve-body kit) to $4,200 (rebuild).
Look up another code
P0756 — frequently asked
What does a P0756 code mean?
Shift B solenoid performance — commanded gear not engaging.
What causes a P0756 code?
Common causes: Worn solenoid; Worn clutch pack; Low/dirty fluid.
What are the symptoms of a P0756 code?
Typical symptoms: Missed shifts; Stuck gear; Check engine light.
Is it safe to drive with a P0756 code?
Not for long. Driving on this one risks further damage. Get it to a shop rather than carrying on with it. Estimated repair: $300-$2,500.
How do I diagnose a P0756 code?
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed. 1. Note every code that is set, not just this one. 2. Read the freeze frame — the conditions the fault was recorded under. 3. Confirm the fault is current rather than history. 4. Then work the likely-causes list in the order shown.
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