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Master Electrical Schematic Icons

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Icon Icon Definition
GM19386Courtesy of GENERAL MOTORS COMPANY
WARNING:

When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.
GM902886Courtesy of GENERAL MOTORS COMPANY
NOTE:

Twisted wires provide an effective shield that helps protect sensitive electronic components from electrical interference.

In order to prevent electrical interference from degrading the performance of the connected components, you must maintain the proper specification when making any repairs to the twisted wires shown :

  • The wires must be twisted a minimum of 10 turns per 31 cm (12 in) as measured anywhere along the length of the wires.
  • The outside diameter of the twisted wires must not exceed 6.0 mm (0.25 in).
GM1822496Courtesy of GENERAL MOTORS COMPANY
NOTE:

Pinout indexing on ground splice pack connectors JX347 and JX348 may vary.
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