Power hold functionality is disabled when it should be enabled.
Replace the DAS2 ECU.
What you'll see
System will not be able to shut down correctly. The file system will most likely not be able to save the files that should be saved at shutdown. System will not be in a well defined state during next startup with possible influence from the previous execution cycle.
System reaction
Amber DAS Warning Lamp
Diagnostic depth
Feedback signal PWH_Feedback indicates that the PWH is ‘Disabled’ even though the watchdog PWH_Ack_Toggle is being toggled and signal PWH_Request is ‘Active’. The DTC is set to active if all conditions below have been fulfilled for more than 10 seconds. • The PWH toggling state from ComP == ‘Toggling’ • The PWH request signal == ‘Active’ • PWH_Feedback == 'Disabled' The DTC is set to inactive if all conditions below have been fulfilled for more than 10 seconds. • The PWH toggling state from ComP == ‘Toggling’ • The PWH request signal == ‘Active’ • PWH_Feedback == 'Enabled' The DTC is not set to active in the following cases: • Ignition is turned off. • First 2 seconds after ignition on. • System supply voltage (U30) is below 22 volt. • System supply voltage (U30) is above 32 volt.
Hardware malfunction.