350SDL (126.135) L6-3.5L DSL Turbo (603.970) (1990)
Connection Diagram - Pulse Display/Meter
013
Pulse meter
G1
Battery
X92
Test coupling for diagnosis, 8-pin (flashing code)
There is a diagnosis program integrated in the control unit to test the control unit and the electrical components of the airbag system. When a fault is
detected, the warning lamp (A1e15) does not go out after 4 s or it will come on while driving. The faults detected are stored and may be called up in
the form of a pulse display by means of the warning lamp (A1e15) or digitally by means of a pulse meter.
Note on Pulse Display:
The digits 1 - 10 appear on the display of the pulse meter. A 1 signifies that no fault is stored in the system. All other numbers are assigned to a certain
group of faults. If there are several faults in the system the fault with the lowest pulse number is displayed first.
-
If the light-emitting diode "U-Batt" lights up after connection, the pulse meter and power supply for the pulse meter are in order.
-
When the first number reappears during the test after at least two or more pulse outputs (numbers) all faults have been read.
Diagnosis With Pulse Display:
-
Connect pulse meter in accordance with the connection diagram.
NOTE: The light-emitting diode "U-Batt" in the display must light up.
-
Switch on ignition.
-
Press the start button for between 2 and 4 s.
-
Display 1 means no fault in the system. If another number appears, rectify the fault in accordance with the fault-finding flow diagram. See: Testing
and Inspection/Component Tests and General Diagnostics