P1740 — TCC or Overdrive Solenoid Performance
CAUTIONIs it safe to drive? Drive gently and get it looked at soon — it can worsen or fail inspection.
What P1740 means
This is a manufacturer-specific code — its meaning depends on the vehicle’s make (see below).
What P1740 means on specific makes
Dodge / Jeep / Ram / Chrysler CAUTION
Chrysler transmission code: the torque-converter-clutch (TCC) or overdrive solenoid isn't performing as commanded. Can cause poor lockup, slipping, or shift quality issues; sometimes brings up P0700 too. Drivable but address it to avoid trans damage.
- Low/dirty transmission fluid ($30-150 service)
- Failed TCC or OD solenoid ($150-400)
- Internal trans wear / clutch issue ($varies)
- Wiring fault to solenoid ($20-150)
Check first: Check fluid level/condition first, then test the TCC and OD solenoid operation with a scan tool.
Source: Allpar Chrysler list / dtcdecode