The powertrain control module (PCM) in your Jeep Wrangler acts as your engine's brain. Here's where it can cause problems, and how to fix them.

The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.

Since this was a software problem, the fix is pretty straightforward as dealers will reprogram the Powertrain Control Module with updated software.

The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.

Fiat Chrysler Automobiles (FCA) announced a recall of 12,779 Chrysler, Dodge, Fiat, Jeep, and Ram vehicles from the 2017 through 2019 model years. A faulty powertrain controller may keep the ...

The powertrain control module isn't the only computer that you can find on contemporary cars, but it is the primary computer that controls most systems and functions for vehicles that utilize a PCM.

Since this was a software problem, the fix is pretty straightforward as dealers will reprogram the Powertrain Control Module with updated software. It promises to have an RPM reduction function ...

“The powertrain control module software may cause an incorrect fuel mixture condition in the engine and result in an engine stall," according to one document posted recently on the NHTSA site.

FCA dealers will upgrade the powertrain control module software in order to remedy the issue. Affected owners will receive notifications as early as next week.