All outputs are enabled when they should be disabled.
Replace the COO8 ECU.
What you'll see
If the outputs are enabled despite the fact that an unmanageable error is detected the behavior is undefined. • Comfort shift interlock might provide misleading feedback to the driver about the selected gear or lock so that no gear can be engaged. Function must be put in a suitable ‘limp home mode’ to avoid VOR. • 61-relay might be activated when the generator is not charging which can lead to VOR. • Wake-up may be unintentionally activated. This will affect the stay alive functionality of the system including switch modules. • Enabling the 12V supply for the immobilizer will make it possible to start the vehicle even though it should not have any supply voltage.
System reaction
Amber COO Warning Lamp
Diagnostic depth
All controllable outputs are enabled even though the output enable watchdog is not being toggled. This applies for the digital outputs, PWM, wake-up, bi-directional and 12V supply. The possibility to stop toggling the watchdog from within the application software serves as an emergency shut off if an unmanageable error is detected. There are some fault modes where it is desired to switch off the PWM but by stop toggling the watchdog the other outputs will be affected as well. We might never use the feature to stop toggling and if there is no such state this DTC is not applicable.
Hardware malfunction.