Siemens VDO modulcockpit II Product Manual page 84

Technical Product Manual
VDO modulcockpit II
5. Testing Instructions
5.2 2Unit Instrument Module
(2x Ke) 2x Single Instrument Module
Test method description:
Basic settings:
Test of the illumination
Connect the cluster instrument per test circuit diagram I with the test cable No. 2.
Test of the movement
Connect the cluster instrument per test circuit diagram II with the test cable No. 2 and the measuring cable.
The indication can be tested with the resistor decade used for sensor simulation. The chapter 5.9 gives
tables of the single instrument modules (Ke) with information about display, comparison resistors and
tolerances.
Check the system voltage before switching the power supply on. An overvoltage can lead to the destruction of
the instrument or of the illumination.
The sensor line is not needed to test a voltmeter (single instrument module); the test voltages are set at the
power supply.
On pressure and fuel level indicators for lever-type sensors the pointer will have full deflection if the resistor
decade is not connected.
TU00-0740-0000002
12 V instruments
24 V instruments
0904
110-008-981-. . .
14V
28V
5 - 7