User Manual

Electric System LEXION 500 TIC
38b-6 Lex-e-38b 03/05
Description of function:
4/7
Important note: The further test steps (menu items) can be carried out only when a voltage
is applied to pin 1/1 of the automatic air conditioner module (A6).
5th menu item
Compressor-type air
conditioner electro-
magnetic clutch solenoid
coil Y32
Press key (3) once.
The compressor-type air conditioner electro-magnetic clutch solenoid coil
(Y32) is activated.
Example: Test step 5 is displayed
If the electro-magnetic clutch (Y32) is not activated, please check the
following:
1. Connector on the compressor.
2. Fuse (F33, 1.5A) and compressor-type air conditioner relay (K24)
3. Check electro-magnetic clutch mechanically
4. Connector on the automatic air conditioner module (A6).
5. Check for short-circuit or break in the cable on the compressor-type air
conditioner solenoid coil electro-magnetic clutch (Y32).
The solenoid is deactivated again when selecting the next menu item.
6th menu item
Fan speed (30%)
Cab fan (M7)
Press key (3) once.
The fan speed (30%) of the cab fan (M7) is activated.
Example: Test step 6 is displayed
The speed is displayed as a bar display.
If the cab fan does not start, please check the following:
1. Connector on the evaporator fan below the roof cover. Slacken off the
cover screws and remove the cover.
2. Check the cab fan motor mechanically. Abraded particles of carbon
brushes.
3. Connector on the automatic air conditioner module (A6).
4. Fuse (F33, 1.5A)
5. Check cable to the cab fan motor (M7) for short-circuit or break.