April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data Communication Schematics

Fig 1: High Speed GMLAN

Courtesy of GENERAL MOTORS CORP.

Fig 2: High Speed GMLAN - BUS 2

Courtesy of GENERAL MOTORS CORP.

Fig 3: Low Speed GMLAN

Courtesy of GENERAL MOTORS CORP.

Fig 4: Communications Enable

Courtesy of GENERAL MOTORS CORP.

Fig 5: Local Interconnect Network Bus 1, 3, 4, 9, 11

Courtesy of GENERAL MOTORS CORP.