Precautions for CAN Communication System

WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.

The length of a loose twist (1) in a twist pair wire harnesses of the CAN lines except around the connector (3) should be within 100 mm (3.9 in.). Refer to the circuit diagram to identify the CAN lines.
Excessively loosed lines are more susceptible to interference by electric noise.

Fig 1: Precautions For CAN Communication System
Courtesy of SUZUKI OF AMERICA CORP.
Do not connect CAN line terminals using a bypass wire (1). Doing so makes, the CAN line receive electric noise interference.

Fig 2: Precautions For Do Not Connect CAN Line Terminals
Courtesy of SUZUKI OF AMERICA CORP.