Fused Components

Preliminary work:
Total quiescent current consumption tested, Testing Quiescent Current Consumption
Circuit with increased quiescent current consumption determined, Circuits

Test cable (6) and test adapter
connect to second multimeter.

Multimeter
switch on (Mode: Amps).

Possible quiescent current consumers connected to fuse in question
determine according to chart in fuse box or wiring diagram and disconnect connector.

Quiescent current
read off on second multimeter.

Quiescent current >0.02 A (20 mA):
- Component okay, reconnect connector to component checked.
- Perform test in same manner on all possible components in circuit in question.

NOTE: When measuring at the fuse carrier for the radio or when the connector for the radio is disconnected, the quiescent current consumption can increase by approx. 0.240 A (240 mA).
This high quiescent current consumption can be eliminated by switching the radio on and off again.

NOTE: If the fuse carrier for the auto pilot system (APS) is measured or the APS connector disconnected, the quiescent current increases by approx. 600 mA, a waiting time of approx. 30 minutes must then be observed.

Quiescent current <=0.02 A (20 mA):
- Replace component.

Total quiescent current on multimeter (2) connected to battery
check again.

Readout <= 0.05 A (50 mA) or <=0.085 A (85 mA) on vehicles with immobilizer
- End of test.

NOTE: On vehicles with anti-theft warning system unlock engine hood lock on right.

Readout >0.02 A (20 mA) or >0.085 A (86 mA) on vehicles with Immobilizer
- Continue to check quiescent current consumption on next fuses not yet tested, Circuits