 
  
  Diagnostic Manual, Body and Accessories,
   Volume 1.1
  
Electrical Test Program - Test
| 
  
    |  | Test scope | Test connection | Test condition | Nominal value | Possible cause/Remedy |  
    | 1.0 | Left front door switch (S17/3) 
 | 14
  (1) | A37    | 
          4  
        (2) 
        
       | Disconnect connectors 1 and 2 from A37.
 Left front door closed
 
 Left front door open
 | 
 <1 V
 
 11 - 14 V
 
 | Wiring, S17/3
 |  
    | 2.0 | Right front door switch (S17/4)
 | 16
  (1) | A37    | 
          4  
        (2) 
       | Disconnect connectors 1 and 2 from
      A37 Right front door closed
 
 Right front door open
 
 | 
 <1 V
 
 11 - 14 V
 | Wiring, S17/4
 |  
    | 3.0 | Left rear door switch (S17/5)
 | 17
  (1) | A37    | 
          4  
        (2) 
       | Disconnect connectors 1 and 2 from
      A37 Left rear door closed
 
 Left rear door open
 
 | 
 <1 V
 
 11 - 14 V
 | Wiring, S17/5
 |  
    | 4.0 | Right rear door switch (S17/6)
 | 18
  (1) | A37    | 
          4  
        (2) 
       | Disconnect connectors 1 and 2 from
      A37 Right rear door closed
 
 Right rear door open
 
 | 
 <1 V
 
 11 - 14 V
 | Wiring, S17/6
 |  
    | 5.0 | Trunk lamp switch (S17/8)
      or Tailgate closing assist switch/interior illumination switch
      (A12s1) | 13
  (1) | A37    | 
          4  
        (2) 
       | Disconnect connectors 1 and 2 from
      A37 Trunk lid/tail gate closed
 
 Trunk lid/tail gate open
 
 | 
 <1 V
 
 11 - 14 V
 | Wiring, S17/8 or
 A12s1
 |  
    | 6.0 | Trunk release switch (S15/1) (except Model 202/210 stationwagen)
 | 5
   (1)
 | A37    | 
          4  
        (2) 
       | Unlock vehicle using IR transmitter
      key. Disconnect connectors 1 and 2 from A37
 S51/1 not pressed
 
 S15/1 pressed
 
 | 
 
 
 <1 V
 
 11 - 14 V
 | Wiring, S15/1
 |  
         |