Volvo hidden menu, DTC check helps with troubleshooting faults in car modules without diagnostic interface like VIDA DICE. DDM – Driver Door Module; DEM – Differential Electronic Module; DIM – Driver Information Module; ECM – Engine Control Module; EPS – Electrical Power Steering Module; ETM. Volvo Door Hinge (Drivers Side). Volvo Door Parts. Volvo has set themselves apart from the competition for their. Wikipedia http://en.wikipedia.org/wiki/Volvo_Cars.

Today’s cars have become like a mobile network of control modules. These control modules operate everything from the powertrain, braking, steering and suspension system to climate control, lighting, entertainment, communications and navigation. The technology is mostly incomprehensible to the average motorist, yet it provides all kinds of functions and capabilities that were not even on the radar a decade ago: things like Bluetooth connectivity, hands-free communication and email, automatic emergency braking, blind spot detection, adaptive cruise control, stability control, electronic steering and even key-less smart fobs that allow the vehicle to sense your approach, automatically unlock the doors for you and wake up the onboard electronics so you can be on your way. To make such wonders possible, automotive engineers have created specialized control modules for all kinds of applications. Many motorists are somewhat familiar with the main modules in a vehicle such as the Powertrain Control Module or PCM, which used to be referred to as the Engine Control Module (ECM) or Engine Control Unit (ECU) because it was the computer that controlled engine functions such as spark timing, fuel mixture and emissions.

PCM serves as a more descriptive term because the PCM on many vehicles also controls the transmission, which is part of the powertrain. A Transmission Control Module (TCM) would be a separate control module for the transmission. It interacts with the PCM or ECM to make sure the transmission shifts at the appropriate speed and load.

The Body Control Module (BCM) is yet another major module that usually handles multiple tasks ranging from lighting and other electrical accessories to climate control, keyless entry, anti-theft duties and managing communications between other modules. The functions can vary greatly depending on the year, make and model of vehicle, and even its list of options. This brings us to the “other” modules. These modules aren’t very well known and most people don’t know about them until one fails and they have to get it replaced. These modules have all kinds of strange and confusing acronyms as each carmaker has come up with its own unique list of acronyms for the various modules they use in their vehicles.

A Real Gem A typical example is a Ford GEM module (Generic Electronic Module). Ford started using these in the mid-to-late 1990s in various cars, minivans and light trucks. It is essentially a body control module it terms of what it actually does, though the list of control functions will vary depending on the vehicle application and its options.

Some of the control functions include interior lighting, daytime running lamps, power windows, warning chimes and lamps, rear window defroster, windshield wipers and washers, perimeter anti-theft alarm, remote keyless entry and battery saver functions. The module may be located behind the fuse panel under the dash (Ford F-series trucks) or in the engine compartment near the power center. If a Ford GEM module has to be replaced (which can happen if water infiltrates and corrodes the electronics inside the black box), it usually requires a part number that is specific to the customer’s vehicle. Gary Nutt Operating Systems 3rd Edition Pearson 2004 Pdf Free.

To further complicate matters, Ford says their GEM modules need to be programmed after they have been installed so they will function correctly. But some are simply plug-n’-play and will work right out of the box. Many modules on many different makes and models of vehicles do require either reprogramming for a specific vehicle application or VIN code, or have to undergo some type of initialization or learning procedure (which may require a scan tool) after they have been installed before they will function normally. If a DIY customer doesn’t know this, they may think the replacement module you sold them is no good and bring it back with a warranty claim. Play It Again Sam Another example of modularization would be the Mercedes “SAM” modules that divide up many of the subsystem electrical control functions in Mercedes C-Class and E-Class cars. There are two of these “System Acquisition/Activation Modules” in each car, a rear module (SAM-R) located in the trunk for electrical functions in the rear portion of the vehicle such as taillights, rear window defroster, door locks, etc.) and a front driver side module (SAM-D) in the engine compartment for the headlamps, front turn signals, wipers and other accessories. What each module controls will vary depending on the model year car and how it is equipped.

The Mercedes SAM modules seem to be rather troublesome and can be easily damaged by voltage overloads and even battery disconnects. They also have to be reprogrammed after they have been installed. Module Mania Listing all of the vehicle specific submodules would take too long.

Instead here’s a short list of “other” modules classified by what they do. Many of these modules have a single dedicated function to perform, so they are relatively simple.

Ngen Keygen Orient World there. But others can be nearly as complex as a PCM. To make matters worse, most of these modules may be located virtually anywhere inside the vehicle. Space is tight inside today’s electronics-packed vehicles, so engineers are often forced to locate the module wherever they can find a spot that hasn’t already been taken by something else. Finding a module’s location often requires looking it up on an illustrated component guide or wiring diagram.