Can a steering lock be reset with an EIS?
Keys can be made from the 2nd MCU that is inside. It is a PITA to be removed, but sometimes that saves the day. Steering lock has 2 Motorola MCUs inside and is resetd simply, after that it becomes universal and works with every EIS.
How does the EIS system work on a Mercedes Benz?
The vehicle will instantaneously carry out a sequence of test handshakes to ensure the correct key has been inserted. Each time the key is inserted, the EIS system will check the key and then ask the ESL (Electronic Steering Lock) system for verification that it accepts the correct key is being used.
What happens if the EIS unit is faulty?
If the EIS unit becomes faulty, the Turn & Start function will be de-activated and the module will be locked for security purposes. This will stop the vehicle from starting.
Do you remove the EIS on a diesel car?
If you work on a petrol car, always take a look to the ecu coding string and write it to a piece of paper. On diesel cars no problem. Before remove EIS, always remove the ESL. Otherwise, if you get problems with EIS while repairing, you will get a problem to remove the ESL if it is locked. For sure, better remove.
Is the ECU the same as the transmission?
In the Automotive industry, the term ECU often refers to an Engine Control Unit (ECU), or an Engine Control Module (ECM). If this unit controls both an engine and a transmission, it is often described as a Powertrain Control Module (PCM).
How does the ECU work in an ABS system?
Requests from the Antilock Brake System (ABS) module may also be considered, such as for the application of traction control. Once the data has been collected by the ECU, the processor must determine output specifications, such as fuel injector pulse width, as directed by the software stored within the unit.
Keys can be made from the 2nd MCU that is inside. It is a PITA to be removed, but sometimes that saves the day. Steering lock has 2 Motorola MCUs inside and is resetd simply, after that it becomes universal and works with every EIS.
What is the first stage of ECU operation?
Basic ECU function. The first stage of ECU operation is in fact power management. This is where various voltages are regulated and the power-up of the ECU is handled. Most ECUs have sophisticated power management due to the variety of components inside, accurately regulating 1.8V, 2.6V, 3.3V, 5V, 30V and upto 250V all from the car’s 10-15V supply.