Service manual

Webasto Diesel Cooker X 100 5 Updating and repair
503
5.2 Test program
A device named “Test”
The test device assists the maintenance person
when investigating the condition of the control unit,
e.g. directly from the maintenance coupler J6.
The test device is a device / in the device parameter
selection X1, Device 1. You can get to Device 1 by
detaching all jumpers from the pin pairs (S2 – S6).
The test device assists the maintenance person
when investigating the condition of the control unit,
e.g. directly from the maintenance coupler J6.
The following values have been programmed as the
test device:
- 7 V for the main fan´s motor
- 7 V for the burning fan´s motor
- Glow on normally and stays on, 11 V
- 4 clicks from the pump
- T4 voltage > 5 mV !
Burning indicator LED light turns on
- T4 voltage decreases < 5 mV !
Burning indicator LED light shuts off
- Flashing of the yellow LED 1 Hz when
the potentiometer is at the minimum
- Flashing of the yellow LED 10 Hz when
the potentiometer is at the maximum
If you do not get these values, the control unit is
defected.
“Maintenance man”
coupler
Coupler for device
selection
J6-1, Operating voltage
J6-2, Quick pumping
J6-3, Glow plug voltage
J6-4, T4 voltage (after amplifier)
J6-5, T3 voltage (pulse)
J6-6, Pump pulse
J6-7, Voltage for burning fan
J6-8, Voltage for main fan
J6-9, GND
You can measure the following values from the J6
connector while the unit is running:
Connection diagram for
maintenance coupler
Measurements from the control unit