Main Relay Control (DME Relay 2)

Main Relay Control (DME Relay 2):

Check function:

•D• 100 - This status inquiry is only possible in the case of DME M1.3. With ignition ON or during engine operation, the main relay is activated with ground potential at terminal 85 (display: ON). The relay switches on and supplies the control units DME, EGS, EML and ABS with voltage.

Possible cause:

- Wire to DME control unit Pin 36 defective

- Relay 2 or voltage supply not OK.

- Voltage supply for DME control unit not OK.

- The control unit is defective if no ground potential is output at control unit Pin 36 although the above points are OK.