http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page of 9 //07 0 Chevrolet Silverado.8L Eng 500 Service Manual: WIRING DIGRMS - 500 Print Date: //07 Fig : Power Distribution Circuit ( of 7) (VIN J) STRTER WRECKER (IN ROOF CONSOLE) EMERGENCY ROOF LMP (VIN J) FUSIBLE LINK ( G- /) FUSIBLE LINK ( G- /) FUSIBLE LINK (/) 8 85 0 O V 75 O V TO BLOCK O 7 OF 7) WRECKER TO EMERGENCY DUL BLOCK LMP V S OF 7) & B TO BLOCK R TO 7 OF 7) (ON LOWER BLOCK OF ) (.L) OF 7) HOLDER G0 HOLDER 75 0 J5 G07 (.L) TERMINL) (TOP TERMINL) RER OF ) V 0 85 (RER OF 8 COMPT) V WRECKER J X05 I/P (IN EMERGENCY ROOF LMP EMERGENCY CUT) BODY BUILDER EMERGENCY LMP I/P SIDE OF J09 (IN BLOCK JUMPER HRNESS) E TO I/P OF 7) C TO BLOCK OF 7) D TO ROOF BECON OF 7) J00 B D B C MOBILE RDIO BLOCK ( V ) (BEHIND SIDE OF G00 (ON CORNER OF HVC ) GENERTOR (IN BLOCK JUMPER HRNESS) J (IN BLOCK JUMPER HRNESS) J J9 (IN BLOCK JUMPER HRNESS) J0 LT GRN LT BLU / / G0 (ON OF CYLINDER HED) MOBILE RDIO CUT) HETED TO STUD 8 OF 7) F IPC ECM- BTT TCM-BTT HDLP WSH 0 HVC BTT 9 LTR 5 0 STUD WSHTR 0 ITBC TREC 7 SEO B 7 BLOCK SPEED /T SPEED /T MNUL /C I/P CCESSORY DT LINK CONNECTOR (DLC) TRILER CUT) (VIN G) SPEED & CTIVE SPEED CTIVE SPEED /C J0 INSTRUMENT BODY PNEL CLUSTER (IPC) (BCM) 89 (ECM) (TCM) EVPORTIVE EMISSION (EVP) CNISTER VENT SOLENOID VLVE HVC G00 (ON CORNER OF HVC ) TRILER BRKE TRILER TRNSFER BRKE CSE SHIFT TRNSFER CSE ENCODER

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page of 9 //07 Fig : Power Distribution Circuit ( of 7) FROM IPC F OF 7) STUD 8 ( ) S/ROOF HVC BLWR 70 LBEC 0 ELEC BORD 5 MBEC 9 0 BS- HEVY DUTY BS 59 0 BS- 9 G FSCM 0 TO LGM 7 OF 7) BLOCK COMPT) O CMPER TRILER ELECTRICL LRM BULB CMPER TRILER I/P (IN CONVENIENCE PCKGE (VIN J) J CTIVE & VCUUM BRKE & 0 SERIES CTIVE BRKE O CTIVE BRKE (VIN J) 5.L/ (VIN J) FROM FUSIBLE LINK OF 7) (IN CMPER HRNESS) J SUNROOF ROOF MOUNTED LIGHT PROVI- LIONS BREKER CB BRKE (EBCM) PWR RER WNDW BREKER CB PUMP FLOW PSS BREKER CB PUMP/ TRILER BRKE RT DOORS BREKER CB I/P SIDE OF DJUSTER RER PSSENGER DJUSTER CMPER TRILER TRILER CONNECTOR FROM CUT) I/P OF 7) D WRECKER ROOF & EMERGENCY BECON ROOF LMP SUNROOF BLOWER ROOF BECON (IN OVERHED CONSOLE) (IN SLIDING RER JUMPER HRNESS) J EXTENDED CB & CREW CB ( INDIVIDUL ) J5 INDIVIDUL MIRROR I/P (IN O INDIVIDUL MIRROR ROOF BECON J ROOF MOUNTED BECON CUT) G00 (ON CORNER OF HVC ) MEMORY (MSM) DJUSTER SLIDING RER OPEN SLIDING RER CLOSE PSSENGER PSSENGER LUMBR DJUSTER RER PSSENGER PSSENGER DOOR LOCK/ I/P BLOCK I/P SIDE OF CTSY 5 RT STOP TRN 8 DIM 7 BCM 5 COOLED S DSM 5 RER HVC DDM PWR MIR RER WPR RER 0 OBS DET 0 H LT DR BREKER TO PDM 9 OF 7) & DECOR LEVEL CONVENIENCE PCKGE & & DECOR LEVEL CONVENIENCE PCKGE & INDIVIDUL MIRROR O INDIVIDUL MIRROR INDIVIDUL MIRROR O INDIVIDUL MIRROR BODY MODUE (BCM) CLIMTE (IF EQUIPPED) J CTIVE BRKE & O 0 SERIES TO PDM OF 7) 89 CTIVE BRKE & 0 SERIES INDIVIDUL O INDIVIDUL 5 O INTEGRTED TRILER BRKE INTEGRTED TRILER BRKE REMOTE DOOR LOCK RECEIVER (RCDLR) MEMORY (MSM) DOOR LOCK/ OUTSIDE RERVIEW MIRROR RER OBJECT RER ( RER PRKING SSIST) DOOR LOCK/

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page of 9 //07 Fig : Power Distribution Circuit ( of 7) FROM FSCM G OF 7) LGM 7 IR BG BTT 5 MP ESC/LC EXH LC/COMP 58 RDO EXP/ PTO 7 LBEC 7 0 K TO DLIS 5 OF 7) BLOCK COMPT) I/P SIDE OF BENCH O O & RDIO I/P SIDE OF (IN INSTRUMENT PNEL HRNESS, 9 CM FTER RDIO CONNECTOR BREKOUT) J0 O RDIO (IN PTO JUMPER HRNESS) ( TKE OFF) J7 UX- ILIRY C FROM OF 7) O UX- ILIRY (PPROXIMTELY.5 CM FROM BREKOUTS TO COOLNT TEMPERTURE ) J WINDSHIELD WSHER SOLVENT HETER (IF EQUIPPED) L BENCH O INDIVIDUL INDIVIDUL TKE OFF CUT) TO BODY OF 7) /C MNUL /C INFLTBLE INFLTBLE RESTRINT RESTRINT SENSING & PSSENGER DIGNOSTIC PRESENCE (SDM) (PPS) UDIO MPLIFIER (PREMIUM UDIO BRNDED MPLIFIER SPEKER ) DIGITL RER RDIO UDIO (RS) RECEIVER (IF (IF EQUIPPED) EQUIPPED) RDIO CHIME 0 TKE OFF (PTO) FLUID PUMP HVC I/P BLOCK UNLOCK LOCK INFO LOCK/UNLOCK LOCKS O INDIVIDUL & MIRROR CREW CB INDIVIDUL RSE UX 9 PWR 5 0 UX PWR 0 STOP LMPS IS LPS 7 LT STOP TRN PDM 9 ( CONVENIENCE PCKGE) FROM LT DR H BREKER OF 7) ONSTR O I/P SIDE OF RER ENTERTIN- MENT PCKGE I/P (IN J0 CENTER CCESSORY ( FULL FETURE CENTER ) CUSTOM COMPRTMENT FLOOR CONSOLE O I/P SIDE OF BODY (BCM) I/P CCESSORY WRECKER, EMERGENCY UNIVERSL ROOF LMP & GRGE BODY BUILDER DOOR EMERGENCY OPENER LMP I/P SIDE OF I/P (IN INDIVIDUL MIRROR 895 COMMUNICTION INTERFCE (VCIM) CENTER G0 CONSOLE (ON LOWER COMPRTMENT "B" CCESSORY PILLR) VIDEO DISPLY CREW CB/ EXTENDED CB PERFORMNCE EXHNCED UDIO & COMPRTMENT CONSOLE CENTER CONSOLE CCESSORY J0 J0 (ON CORNER OF HVC ) G00 G0 (ON LOWER "B" PILLR) PSSENGER DOOR LOCK/ J FROM I/P OF 7) GRGE DOOR OPENER (GDO) PERFORMNCE ENHNCED UDIO SPEKER PREMIUM PERFORMNCE ENHNCED UDIO SPEKER

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page of 9 //07 Fig : Power Distribution Circuit ( of 7) FROM LBEC 7 K OF 7) DLIS 5 M TO /CRNK 5 OF 7) BLOCK TRNSFER CSE SHIFT J (IN COLUMN HRNESS) / OFF STRT STRT OFF STRT OFF STRT CC OFF CC CC CC KEY IN (IN COLUMN HRNESS) J B5 X0 IGN BODY (BCM) CC VOLT IGN V THEFT DETERRENT (TDM) N L SPEED /T CCESSORY & CRUISE SPEED /T TO BLOCK 5 OF 7) CONVENIENCE PCKGE INDIVIDUL MIRROR FROM BLOCK OF 7) CONVENIENCE PCKGE O INDIVIDUL MIRROR CCESSORY & (IN CRUISE COLUMN HRNESS) O CCESSORY J & CRUISE I/P SIDE OF V CONVENIENCE PCKGE INDIVIDUL MIRROR (IN INSTRUMENT PNEL HRNESS) J CONVENIENCE PCKGE O INDIVIDUL MIRROR I/P (IN O CCESSORY INFLTBLE RESTRINT COIL CCESSORY MNUL SHIFT SHIFT LEVER J7 (IN HRNESS, 9 CM FROM INFLTBLE RESTRINT COIL X) E 89 FROM MOBILE RDIO BLOCK OF 7) RER SLIDING SUNROOF PSSENGER

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page 5 of 9 //07 Fig 5: Power Distribution Circuit (5 of 7) FROM DLIS 5 M OF 7) 0 0 0 85 0 8 0 0 85 85 8 0 / CRNK WIPER SPEED RER WSH PMP CHMSL HORN RER DEFOG TRLR LT STOP/TURN TRLR RT STOP/TURN BCK/UP LMP PRK LMP HI BEM HDLP LO/HID STRTR /C CMPRSR MISC IGN SEO/LC 5 IR BG IGN 0 HVC-IGN 55 ECM-IGN 5 F5 SIDE OF N I/P FROM BODY.L & J05 O (VIN G) OF 7) T COOLING COOLING ELECT- I/P HETER HETER RONIC 0 (IN CHSSIS TO & J80 CTIVE (IN HRNESS) SPO O SPO SPEED ( (VIN J)) CCESSORY CCESSORY J0 OF 7) RER VIEW RER VIEW SECONDRY CMER CMER PUMP ( (VIN G) O (VIN J) TRNSFER CSE (FSCM) SHIFT TNK) (IF EQUIPPED) IR BRKE TEMPERTURE O INFLTBLE MODE CTUTOR RESTRINT CTUTOR (EBCM) SENSING & ( /C) DIGNOSTIC IR COOLING COOLING TEMPERTURE HETER HETER (SDM) CTUTOR DIGITL (MNUL /C) VIDEO DISC G07 (DVD) INFLTBLE (.L) RESTRINT G0 I/P (.L) (ECM) (.L: TOP RER ON/OFF IR OF ) CLIMTE STOP TRILER BRKE INDICTOR TEMPERTURE PUMP (.L: ON LOWER LMP CTUTOR RECIRCULTION FLOW OF ) RER VIEW ( CTUTOR CMER /C) BLOCK TO FN- 57 P WIPER OF 7) 0 85 UX HVC- FRT WPR TRNS IGN IGN 8 9 FOG LMP DRL L/GTE FRT WSH O HETER SPEED TRNSFER CSE O SPEED TRNSFER CSE SPEED MNUL SHIFT TRNSFER CSE & HETER CTIVE SPEED PUSH BUTTON TRNSFER CSE (IN BLOCK JUMPER HRNESS) J0 B8 X0 (HRNESS IN ) J0 O SPEED MNUL SHIFT TRNSFER CSE & CTIVE SPEED PUSH BUTTON TRNSFER CSE 5 CTIVE SPEED PUSH BUTTON TRNSFER CSE O CTIVE SPEED PUSH BUTTON TRNSFER CSE I/P SIDE OF HETED 7.5 INLINE 5 & & X9 INFLTBLE RESTRINT COIL SPEED /T SPEED /T INSTRUMENT PNEL CLUSTER (IPC) 897 INSIDE RERVIEW MIRROR (ISRVM) (IF EQUIPPED) COMPSS ( & DECOR LEVEL CONVENIENCE PCKGE) HETED ( SPEED /T & MODE HYBRID) DRIVE GENERTOR INVERTER ( (VIN J)) ( SPEED /T) (TCM) DRIVE XLE CTUTOR ( CTIVE SPEED PUSH- BUTTON TRNSFER CSE)

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page of 9 //07 Fig : Power Distribution Circuit ( of 7) 85 8 0 PWR/ TRN ECM/THROT CONT 5 ENG S TO INJ-B 7 OF 7) O- SNSR 8 (VIN J).L.L.L (VIN J) (VIN G) (VIN J).L.L.L (IN HRNESS) J8 Q TO BLOCK 7 OF 7).L (ECM) EVPORTIVE EMISSION (EVP) CNISTER PURGE SOLENOID VLVE MSS IR FLOW (MF)/ INTKE IR TEMPERTURE (IT) CENTRL SEQUENTIL INJECTION (CENTRL SFI) VLVE LIFTER OIL MNIFOLD (VLOM) SSEMBLY (5.L &.0 L) HETED OXYGEN (HOS) BNK HETED OXYGEN (HOS) BNK BLOCK O-B SNSR 8 FROM FRT WPR P INJ- 5 OF 7) FN CNTRL 0 ( (VIN J)) 85 ( (VIN J)) FN LO 85 0 ( (VIN J)) FN HI FN- 57 85 0 FN- 0 EP 8 SEO B 5.L.L CONVENIENCE (IN COIL PCKGE & H JUMPER HRNESS, BETWEEN B COILS 5 & 7) FROM J07 OF 7) HETED OXYGEN (HOS) BNK HETED OXYGEN (HOS) BNK (ICM) COIL COIL COIL 5 FROM I/P 5 OF 7) COIL 7 5.L 7 PRK ENBLE DJUSTBLE PEDLS I/P SIDE OF HYBRID RER VIEW CMER T O RER VIEW CMER SPO LRM HYBRID O TKE OFF (PTO) S TKE OFF (PTO) S (IN SPO THEFT HRNESS) J7 J80 (INSTRUMENT PNEL HRNESS,.5 CM FROM X05 BREKOUT) RER VIEW CMER O RER VIEW CMER B X 5 RERVIEW CMER IMGE DISPLY 898 O RER VIEW RER VIEW CMER CMER SERIL DT GTEWY (SDG) (HYBRID) BLUNT CUT TKE OFF (PTO) SECURITY INDICTOR LMP INCLINTION SHOCK TKE OFF (PTO)

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page 7 of 9 //07 Fig 7: Power Distribution Circuit (7 of 7) FROM OF 7) O FROM BLOCK OF 7) Q FROM OF 7) R (VIN J) ( (VIN J)) BLOCK FN FN CPO BECM FN BECM 0 CCM TRNS PUMP 0 EPS 7 PIM 8 PIM 9 MEG 00 FN LO FN MID FN CNTRL FN MID FN HI COOL PUMP CB HTR PUMP /C COMPRESSOR SERIL DT GTEWY (SDG) FLUID PUMP DRIVE GENERTOR INVERTER CCESSORY DC J95 DRIVE GENERTOR GENERTOR VENT FN DRIVE GENERTOR FROM ENG OF 7) S INJ-B (.L) 0 BLOCK (IN COIL JUMPER HRNESS, BETWEEN COILS & ) J0 COIL COIL COIL COIL 8 8 899

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page 8 of 9 //07 STRTING/CHRGING Fig : Charging Circuit HOT T LL TIMES IPC BLOCK 75 HOLDER TERMINL) X MEG 75 HOLDER TERMINL) X J X / / / / / / O V V / B+ / INFORMTION CENTER (DIC) VOLT LOW SPEED GM LN SERIL DT CHRGE INDICTOR DK GRN LOGIC INSTRUMENT PNEL CLUSTER (IPC) COMPUTER DT LINES COMPUTER DT LINES 500 50 TN/ TN 9 8 7 SERIL DT + SERIL DT - 5 BRN 7 X X CHRGE IND SIG SERIL DT LOW REF SENS SIG 0 X 0 9 DK GRN BRN 500 5077 5075 GRY.L.L, 5.L &.8L 7 X X X GENERTOR SIG (ECM) ( OF CURRENT SPLY 8 X5 507 BODY (BCM) SIDE OF 0 SERIES 0 SERIES B B B 09 BRN C B CURRENT (.L: RER OF (HYBRID: SIDE OF / BRN GRY B+ GENERTOR G0 (ON OF CYLINDER HED) G0 (ON LOWER RDITOR SUPPORT) 8078

http://www.prodemand.com/print/index?content=tabs&module=true&tab=true&terms=tr... Page 9 of 9 //07 Fig : Starting Circuit TERMINL) HOLDER ( SIDE OF FIREWLL) HOLDER 0 8 85 STRTR BLOCK LOCK CC STRT 75 MEG 75 X / X / X F STRTR (.L) 57 (.L) C5 N5 X 5 /.L & O V &.L & V & PPL YEL/ J05 (ON OF CYLINDER HED) (.L) G0 COMPUTER DT LINES 00 50 500 50 / TN/ TN 8 9 X IGN VOLT 5V REF DT BUS + DT BUS - BODY (BCM) SIDE OF G07 (.L) (TOP RER OF ) G0 (.L &.L) (ON LOWER OF ) 500 TN/ 50 TN 9 8 7 SERIL DT + SERIL DT - 5 YEL/ 7 5 5 STRT RLY CTRL.L.8L, 5.L &.L.L W 75 78 ORG/ 57 PRK/NEUTRL SIGNL.8L SPEED /T.L 78 ORG/ PRK/NEUTRL SIGNL ORG/ F / N 79 PRK/ NEUTRL POSITION (PNP) (ON RER SIDE OF ) SPEED /T 5.L &.L ORG/ 5 ORG/ 78.L LLISON SPEED /T R 75 PRK/NEUTRL (ECM) ( OF / PPL / G0 (.8L) (ON OF CYLINDER HED) J0 G0 (.L) ( RER OF ) / INTERNL MODE FLUID (IMS) PRESSURE (TFP) MNUL VLVE F POSITION F J / S.L.L ORG/ H 75 STRTER TN 7 GRY 58 G0 (DIESEL: CORNER OF COMPT) ( DIESEL: ON LOWER RDITOR SUPPORT) G0 (ON OF CYLINDER HED) M F INTERNL MODE (IMS) X X SOLENOID VLVE SSEMBLY (TCM) (TCM) ( OF COMPT, NER FN SHROUD) 8077