Determine fused components with increased quiescent current consumption - AR54.10-P-1030-05AB

AR54.10-P-1030-05AB	Determine fused components with increased quiescent current consumption
	Assignment and lead connections for fuse blocks	Model 163	GF54.15-P-1255GH
	Assignment and lead connections for fuse blocks	Model 170	GF54.15-P-1255ED
	Assignment and lead connections for fuse blocks	Model 202 up to 30.11.94	GF54.15-P-1255EB
	Assignment and lead connections for fuse blocks	Model 202 as of 1.12.94 up to 31.5.97	GF54.15-P-1255EC
	Assignment and lead connections for fuse blocks	Model 202 as of 1.6.97	GF54.15-P-1255EG
	Assignment and lead connections for fuse blocks	Model 208	GF54.15-P-1255EF
	Assignment and lead connections for fuse blocks	Model 210	GF54.15-P-1255EA

Fig 1: Identifying Electrical Connection Set (201 589 00 99 00)

Fig 2: Identifying Test Adapter 1 (140 589 12 21 00)

Fig 3: Identifying Test Adapter 2 (140 589 13 21 00)

1. Ascertain the possible quiescent current consumers on the problem fuse. See Assignment and lead connections for fuse blocks, insert sheet or "Electric Wiring Diagrams for models 163, 170, 202, 208, 210".

   For arrangement of components, refer to "Electric Wiring Diagrams for models 163, 170, 202, 208, 210" or Diagnosis Manual.

   LU Model 129: For arrangement of components, refer to binder "Electric Wiring Diagrams for Passenger Cars".

2. Unplug connector on possible quiescent current consumer.
3. Read off quiescent current on second multimeter.

   If measuring at the fuse for the radio, or if the radio connector is unplugged, it must be noted that the quiescent current consumption rises by approx. 0.240 A (240 mA) when the radio is reconnected.

   This increase in quiescent current disappears when the battery is switched on and off again.

   In vehicles with auto-pilot system (APS), an increased quiescent current consumption of approx. 800 mA occurs after insertion of the APS computer fuse for the duration of the computer boot-up procedure (approx. 30 min). This also applies if the computer connector is unplugged and reconnected.

   Quiescent current > 0.02 A (20 mA): 

   Quiescent current fault remains after connector is unplugged. Component is in order. Reconnect tested component.

4. Conduct test as described with all components on the problem fuse.

Quiescent current ≤ 0,02 A (20 mA): 

Quiescent current fault is rectified after connector of relevant component is unplugged. Component defective. Replace: ↓

To check results, test total quiescent current again.