Function and Features 
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E-11 Start Pulses 
When starting the engine, the battery voltage drops to a low value for a short 
period and then slightly rises again. Most components are activated directly 
before starting for a short period, then deactivated during starting and activated 
again after starting when the engine is running. This test serves to verify normal 
operation under these conditions. The starting process may be performed 
under different vehicle starting conditions, cold start and warm start. In order to 
cover both cases, two different test sequences are required. A component must 
always undergo both sequences. 
  Cold Start Test Pulse