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P1D92 fault code: what it means

P1D92: Incorrect gear ratio, clutch 4 defective (8-speed JL/JT). Covered by the FCA D-clutch repair; may not shift past 3rd.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. failed D clutch
  2. low fluid
  3. valve body

P1D92 by make

Jeep

Incorrect gear ratio, clutch 4 defective (8-speed JL/JT). Covered by the FCA D-clutch repair; may not shift past 3rd.

Usual causes: failed D clutch; low fluid; valve body

Not sure what P1D92 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.