Power Distribution Schematics. GMC Truck GMC C Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2003 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Power Distribution Schematics

Figure 1:	B+ Bus Bar (Gas) - 1 of 3 Master Electrical Component List B+ Bus Bar (Diesel) - 2 of 3 B+ Bus Bar - 3 of 3
Figure 2:	B+ Bus Bar (Diesel) - 2 of 3 Master Electrical Component List B+ Bus Bar - 3 of 3 B+ Bus Bar (Gas) - 1 of 3 B+ Bus Bar - 3 of 3
Figure 3:	B+ Bus Bar - 3 of 3 Master Electrical Component List Ignition, Run and Start Bus Bar B+ Bus Bar (Diesel) - 2 of 3 B+ Bus Bar (Gas) - 1 of 3 B+ Bus Bar (Diesel) - 2 of 3
Figure 4:	Ignition, Run and Start Bus Bar Master Electrical Component List Ignition, Run, Start, Accy Bus Bar B+ Bus Bar - 3 of 3 B+ Bus Bar (Gas) - 1 of 3 Ignition, Run, Start, Accy Bus Bar
Figure 5:	Ignition, Run, Start, Accy Bus Bar Master Electrical Component List LBEC 1, LBEC 2, MBEC 1 Ignition, Run and Start Bus Bar B+ Bus Bar (Gas) - 1 of 3 Ignition, Run and Start Bus Bar
Figure 6:	LBEC 1,LBEC 2, MBEC 1 Master Electrical Component List IGN 1 Relay Bus, SEO 2, RR DEFOG, SEO IGN, B/U LP Ignition, Run, Start, Accy Bus Bar B+ Bus Bar (Gas) - 1 of 3
Figure 7:	IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP Master Electrical Component List FLASHER, LOCKS LBEC 1, LBEC 2, MBEC 1 B+ Bus Bar (Gas) - 1 of 3 Ignition, Run, Start, Accy Bus Bar
Figure 8:	FLASH, LOCKS Master Electrical Component List ABS, VSES, STUD #1, STUD #2, TBC IGN 1 Relay Bus, SEO 2, RR DEFOG, SEO IGN, B/U LP
Figure 9:	ABS, VSES/ECAS, STUD #1, STUD #2, TBC Master Electrical Component List QS4, RADIO, RDO AMP FLASHER, LOCKS B+ Bus Bar (Gas) - 1 of 3
Figure 10:	4WS, RADIO, RADIO AMP Master Electrical Component List INFO, CIGAR ABS, VSES, STUD #1, STUD #2, TBC ECM, ECMRPV, EDU, EDU Relay - Diesel Only
Figure 11:	INFO, CIG LTR Master Electrical Component List RTD/ECAS, RR WPR, EAP, SUNROOF, IPC/DIC, SEO 1 QS4, RADIO, RDO AMP
Figure 12:	RTD, RR WPR, EAP, SUNROOF, IPC/DIC, SEO B1 Master Electrical Component List ECM, ECMRPV, EDU, EDU Relay - Diesel Only INFO, CIGAR B+ Bus Bar (Gas) - 1 of 3
Figure 13:	PCM B, ECMRPV, EDU, EDU Relay - Diesel Only Master Electrical Component List HVAC B, RR HVAC, BLOWER, RR DEFOG, STOP LP, TREC RTD/ECAS, RR WPR, EAP, SUNROOF, IPC/DIC, SEO 1 B+ Bus Bar (Gas) - 1 of 3
Figure 14:	HVAC/ECAS, RR HVAC, BLOWER, RR DEFOG, STOP LP, TREC Master Electrical Component List LH HID, RH HID, PCM B, CRANK, HORN, SIR ECM, ECMRPV, EDU, EDU Relay - Diesel Only B+ Bus Bar (Gas) - 1 of 3 CHMSL, STOP, LT TRLR, RT TRLR
Figure 15:	LH HID, RH HID, PCM B, CRANK, HORN, SIR Master Electrical Component List IGN 0 , TBC IGN 0, TBC ACCY, SEO ACCY, W/S WIPER, RR WIPER HVAC B, RR HVAC, BLOWER, RR DEFOG, STOP LP, TREC B+ Bus Bar (Gas) - 1 of 3
Figure 16:	IGN 0, TBC IGN 0, TBC ACCY, SEO ACCY, WS WPR, RR WPR Master Electrical Component List O2A, O2B, TBC IGN 1, SEO IGN LH HID, RH HID, PCM B, CRANK, HORN, SIR
Figure 17:	O2A, O2B, TBC IGN 1, SEO IGN Master Electrical Component List IGN E IGN 0 , TBC IGN 0, TBC ACCY, SEO ACCY, W/S WIPER, RR WIPER Ignition, Run, Start, Accy Bus Bar
Figure 18:	IGN E Master Electrical Component List SBA, ETC, PCM 1, BTSI, TRL B/U O2A, O2B, TBC IGN 1, SEO IGN Ignition, Run, Start, Accy Bus Bar
Figure 19:	SBA, ETC/ECM, PCM 1, BTSI, TRL B/U Master Electrical Component List INJ 1, INJ 2 - Gas Only IGN E Ignition, Run, Start, Accy Bus Bar
Figure 20:	INJ 1, INJ 2 - Gas Except 8.1L Master Electrical Component List INJ 1, INJ 2-8.1L Only SBA, ETC, PCM 1, BTSI, TRL B/U
Figure 21:	INJ 1, INJ 2 - 8.1L Only Master Electrical Component List FUEL HT and ECM I Fuses - Diesel Only INJ 1, INJ 2 - Gas Only
Figure 22:	FUEL HT and ECM I Fuses - Diesel Only Master Electrical Component List TBC 2A, TBC 2B, TBC 2C, LT DOORS, RT DOORS, SEATS INJ 1, INJ 2-8.1L Only Ignition, Run, Start, Accy Bus Bar
Figure 23:	TBC 2A, TBC 2B, TBC 2C, LT DOORS, RT DOOR, SEAT Master Electrical Component List DDM, PDM, RR ECC, AUX PWR 2, AUX PWR FUEL HT and ECM I Fuses - Diesel Only LBEC 1, LBEC 2, MBEC 1
Figure 24:	DDM, PDM, ECC, AUX PWR 2, AUX PWR Master Electrical Component List BRAKE, HTR A/C, HVAC I TBC 2A, TBC 2B, TBC 2C, LT DOORS, RT DOORS, SEATS LBEC 1, LBEC 2, MBEC 1
Figure 25:	BRAKE, HTR/AC, HVAC I Master Electrical Component List IGN 3, CRUISE, 4WD DDM, PDM, RR ECC, AUX PWR 2, AUX PWR Ignition, Run and Start Bus Bar
Figure 26:	IGN 3, CRUISE, 4WD Master Electrical Component List LO HDLP-LT, LO HDLP-RT, HI HDLP-LT, HI HDLP-RT BRAKE, HTR A/C, HVAC I Ignition, Run and Start Bus Bar
Figure 27:	LO HDLP-LT, LO HDLP-RT, HI HDLP-LT, HI HDLP-RT Master Electrical Component List LR PARK, RR PARK IGN 3, CRUISE, 4WD
Figure 28:	LR PARK, RR PARK Master Electrical Component List FRT PARK, INTR PARK, TRL PARK - Domestic LO HDLP-LT, LO HDLP-RT, HI HDLP-LT, HI HDLP-RT B+ Bus Bar - 3 of 3
Figure 29:	FRT PARK, INTPARK, TRL PARK - Domestic Master Electrical Component List FRT PARK, DRL, TRL PARK, INT PARK - Export LR PARK, RR PARK B+ Bus Bar - 3 of 3
Figure 30:	FRT PARK, DRL, TRL PARK, IN PARK - Export Master Electrical Component List CHMSL, STOP, LT TRLR, RT TRLR FRT PARK, INTR PARK, TRL PARK - Domestic B+ Bus Bar - 3 of 3
Figure 31:	VEH CHMSL, VEH STOP, LT TRLR ST/TRN, RT TRLR ST/TRN Master Electrical Component List LT TURN, RT TURN - 1 of 2 FRT PARK, DRL, TRL PARK, INT PARK - Export HVAC B, RR HVAC, BLOWER, RR DEFOG, STOP LP, TREC LT TURN, RT TURN - 1 of 2
Figure 32:	LT TRN, RT TRN - 1 of 2 Master Electrical Component List LT TURN, RT TURN - 2 of 2 CHMSL, STOP, LT TRLR, RT TRLR CHMSL, STOP, LT TRLR, RT TRLR CHMSL, STOP, LT TRLR, RT TRLR LT TURN, RT TURN - 2 of 2
Figure 33:	LT TRN, RT TRN - 2 of 2 Master Electrical Component List LT TURN, RT TURN - 1 of 2 LT TURN, RT TURN - 1 of 2 LT TURN, RT TURN - 1 of 2 LT TURN, RT TURN - 1 of 2 LT TURN, RT TURN - 1 of 2