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Home >> GMC >> 2014 >> Savana 1500 LS, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1500, U1511, U1512 or U1513: LIN Bus/Lost Communication With RCM >> Circuit/System Description

Circuit/System Description

The remote compass module (RCM) communicates with the body control module (BCM) utilizing a single wire LIN communication link. The BCM is the gateway for the GMLAN network. All data is communicated on the LIN bus, therefore there are only 3 circuits to the module as follows:

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