ar5410p103003c

Testing quiescent current

Type ar · topic 54.10 · version 0103 · 2011-02-22

Applies to: MODEL 170

Where it sits

Function group 2 Chassis › 54 Electrical system, equipment and instruments › 54.10 Battery, power supply, voltage converter — Series 170

EinPAS 25 On-board/network/multifunction › 25.20 On-board electrical system › 25.20.5 On-board electrical system, complete — Series 170

AR54.10-P-1030-03C

Testing quiescent current

If nominal value is not reached:

Determine circuit in which quiescent current consumption is too high

AR54.10-P-1030-04C

Testing quiescent current

201 589 00 99 00

Electrical connection set

Commercially available tools

Number

Designation

WH58.30-Z-1001-09A

Multimeter

Test step

Test instrument/
Test connection

Action/Prerequisite

Nominal value

Possible cause/
Remedy

Observe multimeter limit for measuring current. When the central locking is actuated a current of approx. 10 A flows.

1

W10

G1-

Lock vehicle.

Wait approx. 10 minutes (after-running time for electronic components)

Display 0.05 A (50 mA) or 0,09 A (90 mA)

, vehicles with alarm system CODE 551.

Nominal value reached:
Perform test step 2

Alarm system active when LED in rotary light switch flashes

Do not activate any other loads during the test, otherwise observe after-running time of 10 minutes again

2

W10

G1-

Unlock vehicle.

Wait approx. 10 minutes (after-running time for electronic components)

Display 0.05 A (50 mA) or 0.09 A (90 mA)

, vehicles with alarm system CODE 551.

Nominal value reached: End of test

Alarm system inactive when LED in rotary light switch does not flash.

Do not activate any other loads during the test, otherwise observe after-running time of 10 minutes again.

Referenced documents