OnStar Schematics. Pontiac Grand Prix 2003

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2003 🢒 Grand Prix 🢒 Body and Accessories 🢒 Body Control System 🢒 OnStar Schematics

Figure 1:	Power and Ground Master Electrical Component List OnStar Description and Operation Vehicle Interface Unit (VIU) to On-Star Keypad and Radio PARK LP, HVAC/RKE BATT and Illum Fuses BATT MAIN 1, ONSTAR, STOPLAMP, INT LAMP, and CIG LTR Fuses PARK LP, HVAC/RKE BATT and Illum Fuses IGN MAIN 2, RADIO, SUNROOF, STR WHL CTRL, WIPER, MALL, MALL PGM Fuses, and PWR WDO Circuit Breaker IGN MAIN 2, RADIO, SUNROOF, STR WHL CTRL, WIPER, MALL, MALL PGM Fuses, and PWR WDO Circuit Breaker IGN MAIN 1, BTSI, DRL, CANISTER VENT, PWR DROP, TURN, and SIR Fuses G201 DLC Door Lock Switches Horns Park Lamps Rear
Figure 2:	Vehicle Interface Unit (VIU) to OnStar Keypad and Radio Master Electrical Component List OnStar Description and Operation Vehicle Interface Unit (VIU) to Vehicle Communications Unit (VCU) Power and Ground G302, S390, S604 G302, S402, S406, S416
Figure 3:	Vehicle Interface Unit (VIU) to Vehicle Communications Unit (VCU) Master Electrical Component List OnStar Description and Operation Vehicle Interface Unit (VIU) to On-Star Keypad and Radio