Control Module Resets
WARNING: This page does not describe the selected car, but rather 59 other vehicles, including the 2009 BMW M5, 2009 BMW 650i, 2009 BMW 550i, 2008 BMW M5, and 2008 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.
Using the DISplus or GT1 a Test Plan may be run to check number of control module resets for each control module on the MOST bus.
A control module with 0 (zero) resets has performed no reset, is not installed in the vehicle, or can not be found with the diagnostic equipment.
The control module with the highest number of resets is the most probable cause of a fault with the MOST bus.
Below is an example of a readout from the DISplus or GT1:
READOUT FROM DISPLUS
| Head-Up Display | 15 |
| CD Changer | 0 |
| Headset Interface | 0 |
| Amplifier | 0 |
| Video Module | 0 |
| Telephone | 0 |
| Satellite Radio | 0 |
| Nav System Japan | 0 |
| MASK (or CCC) | 15 |
NOTE:
Resets at a rate of less than 10 may be normal for a control module. When the number of resets is less than 10, this is only an indication on the possible cause of a fault. The control module should generally NOT be replaced with less than 10 resets.