Description Of Causes For System Requested AUTOSTART [2017]: General

DESCRIPTION OF CAUSES FOR SYSTEM REQUESTED AUTOSTART, VEA GENERATION 1 

The information in this document refers to engines in generation 1. From structure week 201717- a vehicle can have an engine in either generation 1 or generation 2.

HINT: If the vehicle was manufactured in the date range when engines in both generations were in use, see the parameter "Engine generation" under Diagnostics/Components/Engine Control Module (ECM)/Parameters in order to determine which generation the vehicle is from. (The parameter is only available on vehicles with structure week 201717-.) 

The Engine Control Module (ECM) detects and saves information about which causes have blocked the automatic start/stop of engine function and what has caused the system to request autostart in autostop mode. This document deals with causes of system requested restart.

HINT: If the Engine Control Module (ECM) and/or Central Electronic Module (CEM) detected a fault and stored DTCs for components/functions related to automatic engine start/stop, it is not certain that the occasion was stored as possible source.