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DTC codes / P07xx · Transmission / P0761

P0761Shift Solenoid 'C' Performance or Stuck Off

P0761 means the transmission control module (TCM) has detected that shift solenoid 'C' is not performing as commanded, typically because its electrical circuit is open or the solenoid is stuck in the off position. The TCM monitors solenoid current and hydraulic response, and when the expected current draw or shift timing does not match, it stores this code and may default to a limp-home mode.

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 noticeable symptoms at first.
  • Harsh or delayed shifts, especially when the transmission tries to engage the gear controlled by solenoid 'C'.
  • The transmission may stick in a single gear or fail to downshift when coming to a stop.
  • A noticeable clunk or jolt when shifting into drive or reverse, or during upshifts.
  • The vehicle may enter limp-home mode, limiting speed and engine rpm.
  • In some cases, the transmission may slip or flare during the affected shift.

Common causes, most likely first

  1. Faulty shift solenoid 'C' itself, either electrically open or mechanically stuck off.
  2. Damaged or corroded wiring or connector at the solenoid 'C' circuit, including chafed harnesses.
  3. Low or contaminated transmission fluid, which can cause solenoid valves to stick or respond slowly.
  4. A clogged transmission filter or restricted fluid passage, reducing hydraulic pressure to the solenoid.
  5. A failed transmission control module (TCM) or internal driver circuit for solenoid 'C'.
  6. Valve body wear or debris causing the solenoid 'C' spool valve to bind.
  7. Poor ground connection for the solenoid circuit, leading to intermittent operation.

How to diagnose and fix it

  1. Check transmission fluid level and condition; top off or replace fluid if it is low or burnt.
  2. Inspect the solenoid 'C' electrical connector and wiring for corrosion, damage, or loose pins.
  3. Measure the resistance of solenoid 'C' at the transmission connector and compare to the manufacturer's specification.
  4. Test the solenoid 'C' circuit for power and ground with a multimeter or test light while commanding the solenoid on with a scan tool.
  5. Remove the transmission pan and inspect the solenoid 'C' for debris or mechanical binding; replace if faulty.
  6. Check transmission line pressure and verify that the valve body passages are clear and the filter is not clogged.
  7. If all electrical and hydraulic checks pass, diagnose the TCM and its internal driver circuit for solenoid 'C'.

What P0761 does not always mean

  • A P0761 does not automatically condemn the solenoid; a simple corroded connector or chafed wire often mimics a failed solenoid and costs far less to fix.
  • Low fluid level or a clogged filter can cause the solenoid to stick off without any electrical fault, so always verify fluid condition before replacing parts.
  • Some vehicles use solenoid 'C' for multiple gears, so a failure may only affect one specific shift while other gears feel normal, leading owners to delay repair.
  • Intermittent P0761 codes are frequently caused by heat-related resistance changes in the solenoid winding or a poor ground that only acts up when the transmission is hot.
  • A stuck-off solenoid can cause the transmission to default to a limp-home gear, but the code may also set from a momentary glitch that does not repeat, so clear and recheck before major repairs.

Can I keep driving with P0761?

You can usually drive the vehicle to a repair shop, but avoid heavy acceleration, towing, or long trips because the transmission may be in limp-home mode and shifting harshly. If the vehicle will not move or slips severely, stop driving and have it towed to prevent further transmission damage.

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.

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