OnStar Schematics. Chevrolet Blazer - 4WD 2000

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2000 🢒 Blazer - 4WD 🢒 Body and Accessories 🢒 Body Control System 🢒 OnStar Schematics

Figure 1:	Vehicle Interface Unit (VIU) (Gen 1 -- Dealer Installed) Cellular Communication Components OnStar Circuit Description Vehicle Communication Unit (VCU) and Floor Handset (Gen 1 - Dealer Installed) AUX PWR, RDO BATT and HDLP SW Fuses AUX PWR, RDO BATT and HDLP SW Fuses RDO IGN and STR WHL RDO IGN Fuses RDO IGN and STR WHL RDO IGN Fuses Entertainment Connector End Views Handling ESD Sensitive Parts Notice RDO IGN and STR WHL RDO IGN Fuses Power, Ground, Transfer Case Shift Control Module and Vehicle Interface Unit (VIU) G200, G201 and G207 (Utility) Handling ESD Sensitive Parts Notice Vehicle Communication Unit (VCU) and Floor Handset (Gen 1 - Dealer Installed)
Figure 2:	Vehicle Communication Unit (VCU) and Floor Handset (Gen 1 -- Dealer Installed) Cellular Communication Components OnStar Circuit Description Vehicle Interface Unit (VIU) (Gen 2 - Factory Installed) Vehicle Interface Unit (VIU) (Gen 1 - Dealer Installed) Vehicle Interface Unit (VIU) (Gen 1 - Dealer Installed) Cellular Communication Connector End Views Handling ESD Sensitive Parts Notice
Figure 3:	Vehicle Interface Unit (VIU) (Gen 2 -- Factory Installed) Cellular Communication Components OnStar Circuit Description OnStar® Controls, VIU (Gen 2 - Factory Installed) Vehicle Communication Unit (VCU) and Floor Handset (Gen 1 - Dealer Installed) INT BATT Fuse INT BATT Fuse TURN, SIR and GAUGES Fuses Power, Ground, Transfer Case Shift Control Module and Vehicle Interface Unit (VIU) Power Power and Ground Power and Ground (Chevy/GMC) AUX PWR, RDO BATT and HDLP SW Fuses G200, G201 and G207 (Envoy) Handling ESD Sensitive Parts Notice
Figure 4:	OnStar® Controls, VIU (Gen 2 -- Factory Installed) Cellular Communication Components OnStar Circuit Description Vehicle Communications Unit (VCU), Antenna (Gen 2 - Factory Installed) Vehicle Interface Unit (VIU) (Gen 2 - Factory Installed) Entertainment Connector End Views G202 (Utility) G202 (Utility) Handling ESD Sensitive Parts Notice Inline Harness Connector End Views
Figure 5:	Vehicle Communications Unit (VCU), Antenna (Gen 2 -- Factory Installed) Cellular Communication Components OnStar Circuit Description OnStar® Controls, VIU (Gen 2 - Factory Installed) G103 and G105 (4.3L) Handling ESD Sensitive Parts Notice Handling ESD Sensitive Parts Notice Inline Harness Connector End Views