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Home >> Mercedes Benz >> 2021 >> Metris Van Cargo >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Electrical System, Equipment & Instruments (04 Of 11) -- 447 Chassis >> Basic Knowledge >> Wake Onboard Logic Unit (OLU), Basic Function - GF54.21-S-9988A

Wake Onboard Logic Unit (OLU), Basic Function - GF54.21-S-9988A

Model All (Light transporter) 

With Code JO2 (OLU pre-installation) 

With Code JO3 (OLU Connect Unit) 

With Code JO4 (OLU Compute Unit) 

With Code JO5 (OLU with head unit integration) 

Overview 

This document contains the following information:

General information 

The OLU has several wake-up channels. These channels are configurable within the OLU and they can be switched on and off.

This does not apply to the following channels: Tml. 15, CAN bus and LIN bus and the digital input are wake-up channels that switch on the energy supply of the OLU directly, and cannot therefore be configured or switched off.

Function 

The OLU can be activated through the following channels: