SIR Schematic Icons. Chevrolet Blazer - 4WD

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD - RHD 🢒 Restraints 🢒 SIR 🢒 SIR Schematic Icons

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Refer to

Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

in Cautions and Notices.

Important: In order to prevent accidental deployment, the shorting bars close in order to short the connectors when the connectors are separated.

Important: Twisted-pair wires provide an effective shield that helps protect sensitive electronic components from electrical interference. Depending on application, twisted-pair wires are used on wiring harnesses connecting the following components:

•	The electronic ignition control module

•	The manifold absolute pressure (MAP) sensor

•	The powertrain control module (PCM)

•	The vehicle speed sensor (VSS)

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-pair wires shown :

•	The wires must be twisted a minimum of 9 turns per 30.5 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 (0.236 in).

Refer to Splicing Twisted or Shielded Cable in Wiring Systems.