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Electrical connection set
Commercially available tools
Observe limit value of multimeter for voltage measurements. A current of approx. 20 A flows when the central locking starts operating.
Do not activate any other consumers during the test, otherwise observe new afterrun time of approx. 4 minutes.
1 Connect multimeter to negative terminal and positive terminal of battery.
2 Lock vehicle and wait for approx. 4 minutes (afterrun time for electronic components).
Display 0.05 A (0.085 A on vehicles with immobilizer) = specified value achieved:
Carry out work step 3.
Display 0.05 A (0.085 A on vehicles with immobilizer):
Carry out work step 4.
3 Unlock vehicle and wait for approx. 4 minutes (afterrun time for electronic components).
Display 0.05 A (0.085 A on vehicles with immobilizer) = specified value achieved:
End of test.
Display 0.05 A (0.085 A on vehicles with immobilizer):
Carry out work step 5.
4 Unlock vehicle and wait for approx. 4 minutes (afterrun time for electronic components).
Display 0.05 A (0.085 A on vehicles with immobilizer):
Note displayed value. Determine circuit with higher quiescent current.
Display 0.05 A (0.085 A on vehicles with immobilizer):
Carry out work step 5.
5 Open trunk lid. Operate microswitch on trunk lock and wait for approx. 4 minutes (afterrun time for electronic components).
Display 0.05 A (0.085 A on vehicles with immobilizer:
Adjust switch (trunk illumination) on trunk lock, replace if necessary and carry out work step 2 again to check.
Display 0.05 A (0.085 A on vehicles with immobilizer):
Note displayed value. Determine circuit with higher quiescent current.