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P1DD2 fault code: what it means

P1DD2: Torque request from TCM denied (Renegade/Compass). Set by the TCM; vehicle goes into limp-home mode. FCA PCM update.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. PCM software (FCA flash)
  2. engine fault blocking torque control
  3. network fault

P1DD2 by make

Jeep

Torque request from TCM denied (Renegade/Compass). Set by the TCM; vehicle goes into limp-home mode. FCA PCM update.

Usual causes: PCM software (FCA flash); engine fault blocking torque control; network fault

Not sure what P1DD2 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.