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 PCM contains various switches, constants, and tables that control operation of the engine, transmission, and other aspects of the powertrain. VCM Editor is your window into the PCM.

Ten years after Masuoka invented flash memory it arrived in the all-new, on-board diagnostic (OBD-I) 1994 LT1 F-body powertrain control module (PCM). The spiffy new controller featured 128 ...

The first thing I would do if I was inspecting your car is to verify that the refrigerant levels are correct, writes ...

In this article we are going to cover everything you need to know about the P219B error code, specifically described as a Fuel Trim Cylinder Balance Bank 2 fault code. Let's take a closer look at what ...

Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2020-2021 Land Rover Defender vehicles equipped with 6-cylinder engines. The Powertrain Control Module (PCM) may unexpectedly ...

This system consists of a Glow Plug Control Relay (GPC) for 49 state or Glow Plug Control Module (GPCM) on 1999 and newer California emissions vehicles, 8 glow plugs, a “wait to start” light, related ...

The Spokesperson responded with a humdinger: “ [The] Dealer ran a number of diagnostic tests, including a scan report on the vehicle’s Powertrain Control Module (PCM). Scan report found PCM to have ...

Ford Motor Company (Ford) is recalling certain 2020-2022 Explorer vehicles equipped with a 2.3L engine and 10R60 automatic transmission. An unintentional powertrain control module (PCM) reset may ...