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11

There is legislation known as "E-Mark" that pertains to electronic devices that are permanently installed in a vehicle. This car PC manufacturer is UK based and has a great description of the requirement. Excerpt: Prior to March 2009 the regulations were extremely clear - all equipment installed into a vehicle on a permanent basis was required to be ...


10

My 2012 Volkswagen Golf has an RCD510 multimedia unit which features a touch screen, card slot, USB connector, bluetooth and six disc drive, integrated front and rear parking sensors. I know that upgrades to this unit are available which include the ability to add integrated video for a rearward facing camera plus there is a version in inbuilt NAV. This is ...


8

This article speaks to how Android Auto complies with regulations: Google built Android Auto so that it complies with recognized automobile safety standards, including the National Highway Traffic Safety Administration's (NHTSA). So, it seems like they've already figured out what needs to be done to conform with existing NHTSA rules. The full ...


8

Sadly you are not going to be able to do what you want simply connecting CAN-H and CAN-L to a serial port. Here is a pointer to the physical interface layer for CANBUS. CANBUS Physical layer ISO 11898 What you will find is that while CAN is a "serial bus" that just means that the data is transmitted one bit at a time. It does not mean that it can be ...


6

There is a distinction that needs to be made between: OBD: this is an interface, that specifies the physical and electrical parameters required to connect a diagnostic computer and the car's electronics in a standard way. This is the bit that is mandatory by legal requirement, so that a car manufacturer cannot "lock in" its vehicles by requiring service to ...


6

From my personal experience with this particular subject you have many variables that come into play. My shop specializes in computer systems on some of the newer vehicles (Mostly Japanese), but we do work on anything given the chance. ECM, PCM, and ECU are generally manufacturer specific. I usually see ECU when referring to Asian vehicle companies. Chrysler ...


6

I know nothing about BMW, but this might help. My VW Jetta had a "La Cucaracha" warning buzzer that was plugged into the fuse box and looked like a relay with a speaker on it. Rather than unplugging it, I covered the speaker part with several layers of electrical tape. The tone could still be heard, but it was very quiet and not nearly as annoying. So, ...


5

I'm not sure about BMW, but I used to develop these chimes for Ford and Fiat. They were implemented in the vehicle media system, aka radio. So, in order to change the volume or type of chime one must program a new software and download it to the media system. This is not trivial, the system supplier is the owner of these codes and they won't let you touch it ...


3

It's very hard to tease out what your actual problem is. Here is what I've figured out. Your truck won't start and you have no communication with the PCM. This makes you think that the PCM is bad. How am i doing? First, a PCM can't be diagnosed outside the vehicle without a big complex setup that simulates all of the vehicle it should be hooked up to. ...


3

Cause Your car (like most cars) saves the milage in a small memory chip inside the instrument cluster. That chip is called an EEPROM. Like most memory units EEPROMs are subject to wear. If you rewrite the data often enough the chip will fail to save the new data or save corrupted data. This could be the case here. So, why is the "correct" (i.e. new) value ...


3

The two requirements are separate. OBDII is required in all vehicles since 1996. This is primarily an emissions related regulation to formalize how vehicles would relay emissions failures to the user and to mechanics. The standard has many parts, but it primarily designated a connector, its pinout, and allowed one of five different electrical signalling ...


2

OBD is a standard for a diagnostics port that provides emissions-related info on the diagnostics port. Contrary to popular belief its purpose isn't to prevent lock-in by car manufacturers but only to allow service centers a standard way to access emissions-related info required for mandatory checks like the "MOT test" (as they call it in the UK). The ...


2

How is the OBD and CAN exactly related? Controller Area Network (CAN) is ISO 11898 standard. It, like most other networks, is based off of the OSI model. It specifies certain parameters for communications between vehicle systems. CAN was first specified in 1986 by Robert Bosch at the Society of Automotive Engineers (SAE) congress. CAN uses serial ...


2

I don't think CAN is a necessary part of OBD, it's just the most commonly used system. The OBD requirements are for consistent diagnostics (so that, in theory, any car can be plugged into a standard reader and give a standard set of error codes), wheras CAN is a method for the internal components of the car to communicate (similar in many ways to the USB ...


2

None of this is true. In the same way as there was an EU Directive that all cars be equipped with ABS but TVR didn't subscribe to this. My uncle has just sold a 2005 Caterham Se7en CSR-200 which used MBE management and was definitely not CAN-BUS. We're building another one in October of this year and if it genuinely is CAN-BUS I'll let you know but I have ...


2

For what it's worth, there is a way to access the instantaneous fuel flow rate inside the secret menu on this model. I know this is not exactly what you're after but this parameter has a very fast refresh rate, and to obtain the l/100 km reading it you simply have to divide the value by vehicle speed and adjust for units if needed. With the key in the "off" ...


2

It should be under the dash just to the right of the hood release (based on some internet searching). EDIT: The connector itself should look like this: Most GM vehicles have it just beyond the dash plastic underneath. Since this is a Caddie, it may be under a panel. This video may be of a little help to you.


2

The term ECM could (just as @cloudnyn3 says) be used for both Electronic Control Module or Engine Control Module. Different brands has different names for the same stuff, and also same name for different stuff, which can get a little confusing. The term ECU is often used for Electronic Control Unit (which could be more or less any electronic unit in the ...


2

No car has every attribute to be fully autonomous out of the box. Brakes: If a vehicle is equipped with dynamic stability control then software control of the brakes is possible. Dynamic stability control incorporates all the needed pieces to operate the brakes without driver input. The base software will not incorporate software brake control and will ...


1

I recommend my combo, the app Torque Pro for display on a Bluetooth enabled phone or tablet, and a Bluetooth ODBII Reader like my BAFX Elm327 to get the data. Torque Pro has configurable on-screen real-time gauges. The data it can display is only limited by your vehicle's ODBII implementation.


1

Why use a the Canbus to USB adaptor (not a cable!) ? The elm327 comes in at least three flavours: One with an USB connection. One with an bluetooth connection. One with an Wifi connection. I just ordered the third because it uses ancient but widespread IP v4 to set up a connection, making it usuable with almost any computer. (Almost since it might be ...


1

As far as I know, this isn't possible. The EEC-IV has a stored code memory that keeps track of engine problems while it is running but requires you to turn on the diagnostic mode to get those codes. There is also a Key-Off-Engine-Running diagnostic mode that requires you to perform some specific steps while the car is parked and warmed up to diagnose ...



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