Chevrolet Cab & Chassis Silverado 3500 HD (2008-2011) recirculation actuator Wiring diagrams

4 SPEED A/T 6 SPEED A/T 4.3L A/C CMPRSR RELAY ACTIVE 2 SPEED AIR BAG IGN FUSE 40 AUTOMATIC TRANSMISSION (4 SPEED A/T) AUTOMATIC TRANSMISSION (6 SPEED A/T, 2 MODE HYBRID) AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE CLIMATE CONTROL SEAT MODULE DIGITAL VIDEO DISC (DVD) CONTROL MODULE (IF EQUIPPED) DRIVE MOTOR GENERATOR POWER INVERTER MODULE (6.0L (VIN J)) ECM-IGN FUSE 56 ELECT- RONIC ELECTRONIC BRAKE CONTROL MODULE (EBCM) (IF EQUIPPED) EXCEPT 4.3L, 6.0L (VIN G) FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 7) FROM DLIS FUSE 35 (DIAGRAM 4 OF 7) FRT WPR FUSE 36 HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE DRL PCB FRT WASH PCB RELAY RELAY PCB RELAY LEFT I/P J/B (LOWER LEFT SIDE OF DASH) MISC-IGN FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK WIRE PNK/ WHT WIRE PNK/WHT WIRE REAR DEFOG RELAY REAR VIEW CAMERA UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECONDARY FUEL PUMP (6.0L (VIN G) W/O AUXILIARY (FSCM) FUEL TANK) SEO/ALC FUSE 54 STOP LAMP SWITCH STRTR RELAY TO FAN-1 FUSE 57 (DIAGRAM 6 OF 7) TRAILER BRAKE CONTROL MODULE (IF EQUIPPED) TRANS IGN 1 FUSE 19 TRANSFER CASE SHIFT CONTROL MODULE (IF EQUIPPED) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY W/ FRONT SEAT COOLING HEATER W/ SPO ACCESSORY REAR VIEW CAMERA W/O SPO ACCESSORY REAR VIEW CAMERA W/O FRONT SEAT COOLING HEATER TO W/O FRONT SEAT W/ FRONT SEAT COOLING COOLING HEATER HEATER W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER CONTROL PCB RELAY WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

2 SPEED MANUAL SHIFT CONTROL TRANSFER CASE 4.3L 6 SPEED A/T A/C CMPRSR RELAY AUTOMATIC TRANSMISSION AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE DRL PCB RELAY ECM-IGN FUSE 56 ELECTRONIC ENGINE CONTROL MODULE (ECM) FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 6) FROM DLIS FUSE 35 (DIAGRAM 4 OF 6) FRONT DRIVE AXLE ACTUATOR FRT WASH PCB RELAY FUEL SYSTEM CONTROL MODULE (FSCM) HDLP LO/HID RELAY HEATED STEERING FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) (NOT USED) MISC ING FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK PNK WIRE PNK WIRE POWER TAKE OFF (IF EQUIPPED) (BLUNT CUT) REAR DEFOG RELAY RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECONDARY FUEL PUMP RELAY (6.0L (VIN K) W/O AUXILIARY FUEL TANK) SEO/ALC AIR BAG FUSE 54 IGN FUSE 40 STOP TRAILER LAMP BRAKE SWITCH CONTROL MODULE (IF EQUIPPED) STRTR RELAY TO FAN 1 FUSE 57 (DIAGRAM WIPER CONTROL 6 OF 6) PCB RELAY FRT WPR FUSE 36 TRANS IGN 1 FUSE 19 TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ AUTO W/O 4.3L, 5.3L (VIN O), 6.0L (VIN K), 5.3L (VIN 3) W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

4 SPEED A/T 6 SPEED A/T ALLISON LCT 1000 4.3L 6.0L (VIN K) 4.3L, 6.0L (VIN G) A/C CMPRSR RELAY ACTIVE 2 SPEED AIR BAG IGN FUSE 40 AUTOMATIC TRANSMISSION (4 SPEED A/T) AUTOMATIC TRANSMISSION (6 SPEED A/T, 2 MODE HYBRID) AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE DIGITAL VIDEO DISC (DVD) CONTROL MODULE (IF EQUIPPED) DRIVE MOTOR GENERATOR POWER INVERTER MODULE (6.0L (VIN J)) ECM-IGN FUSE 56 ELECT- RONIC FROM BODY CONTROL MODULE (DIAGRAM 4 OF 7) FROM DLIS FUSE 35 (DIAGRAM 4 OF 7) HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE FOG LAMP DRL PCB FRT WASH PCB RELAY RELAY RELAY PCB RELAY LEFT I/P J/B (LOWER LEFT SIDE OF DASH) MISC ING FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK WIRE PNK/ WHT WIRE PNK/WHT WIRE REAR DEFOG RELAY REAR VIEW CAMERA RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SEAT CLIMATE CONTROL MODULE SEO/ALC FUSE 54 STRTR RELAY TO FAN-1 FUSE 57 (DIAGRAM 6 OF 7) FRT WPR FUSE 36 TRAILER STOP BRAKE LAMP CONTROL SWITCH MODULE TRANS IGN 1 FUSE 19 TRANSFER CASE SHIFT CONTROL MODULE (IF EQUIPPED) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ FRONT SEAT COOLING HEATER W/O FRONT TO SEAT COOLING (DIAGRAM HEATER 6 OF 7) W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER CONTROL PCB RELAY WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

6 SPEED A/T ALLISON LCT 1000 A/C CMPRSR RELAY AIR BAG IGN FUSE 37 BCK/UP LAMP PCB RELAY BLK WIRE BLUNT CUT POWER TAKE-OFF (PTO) PROVISION TRAILER BRAKE CONTROL MODULE BRN WIRE CHMSL REAR COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE, W/ LUXURY CONTROL PCB RELAY AUX HVAC- IGN FUSE 45 DRL PCB RELAY EAP FUSE 35 ECM IGN FUSE 53 ELECTRONIC, ACTIVE 2 SPEED ENGINE CONTROL MODULE (ECM) FAN FUSE 68 FAN RLY RELAY FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 5) FROM DLIS FUSE 32 (DIAGRAM 4 OF 5) FRONT DRIVE AXLE AXLE (W/ ACTIVE 2 SPEED PUSH- BUTTON CONTROL TRANSFER CASE) FRT WASH PCB RELAY FRT WPR FUSE FUSE 33 GLOW PLUG CONTROL MODULE (GPCM) HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PWR/TRN PCB RELAY RELAY HVAC-IGN FUSE 52 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) PNK (NOT USED) WIRE MISC IGN FUSE 40 MODE ACTUATOR NCA WIRE PARK ELECTRONIC ENABLE ADJUSTABLE PCB PEDALS RELAY PCB RELAY PNK WIRE PNK/WHT WIRE POWER TAKE OFF (PTO) MODULE (IF EQUIPPED) PRK LAMP RELAY REAR VIEW SEAT CLIMATE CAMERA CONTROL MODLE REAR WIPER FUEL WASH SPEED PCB PMP DEFOG PCB PCB RELAY RELAY RELAY RELAY RELAY REARVIEW BLUNT CUT CAMERA POWER TAKE-OFF IMAGE DISPLAY (PTO) MODULE PROVISION REARVIEW CAMERA IMAGE DISPLAY MODULE RECIRCULATION ACTUATOR RED WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECURITY VEHICLE INDICATOR INCLINATION LAMP SENSOR SEO SEO/ALC FUSE 51 STOP LAMP SWITCH STRTR RELAY TRANS IGN 1 FUSE 13 TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY VEHICLE SHOCK SENSOR W/ SPO ALARM W/O 2 SPEED TRANSFER CASE W/O FRONT W/ FRONT SEAT COOLING SEAT COOLING HEATER HEATER W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER YEL WIRE

A/C CMPRSR RELAY AIR BAG IGN FUSE 37 AUX HVAC- IGN FUSE 45 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE CHMSL REAR CLIMATE CONTROL TRAILER BRAKE SEAT CONTROL MODULE MODULE (IF EQUIPPED) COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE, W/ LUXURY DIGITAL VIDEO DISC (DVD) CONTROL MODULE (IF EQUIPPED) DRL PCB RELAY EAP FUSE 35 ECM IGN FUSE 53 ELECTRONIC, ACTIVE 2 SPEED ENGINE CONTROL MODULE (ECM) FAN FUSE 68 FAN RELAY FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 5) FROM DLIS FUSE 32 (DIAGRAM 4 OF 5) FRONT DRIVE AXLE AXLE (W/ ACTIVE 2 SPEED PUSH- BUTTON CONTROL TRANSFER CASE) FRT WASH PCB RELAY FUSE FUSE 33 GLOW PLUG CONTROL MODULE (GPCM) HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PWR/TRN PCB RELAY RELAY HVAC-IGN FUSE 52 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) PNK (NOT USED) WIRE MISC IGN FUSE 40 MODE ACTUATOR NCA WIRE PARK ELECTRONIC ENABLE ADJUSTABLE PCB PEDALS RELAY PCB RELAY PNK WIRE PNK/WHT WIRE POWER TAKE OFF (PTO) MODULE (IF EQUIPPED) PRK LAMP RELAY REAR VIEW CAMERA REAR WIPER FUEL WASH SPEED PCB PMP DEFOG PCB PCB RELAY RELAY RELAY RELAY RELAY RECIRCULATION ACTUATOR RED WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECURITY VEHICLE INDICATOR INCLINATION LAMP SENSOR SEO SEO/ALC FUSE 51 STRTR RELAY TRANS IGN 1 FUSE 13 TRANSFER CASE SHIFT CONTROL MODULE STOP LAMP SWITCH TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY VEHICLE SHOCK SENSOR W/ FRONT SEAT COOLING HEATER W/ SPO ACCESSORY REAR VIEW CAMERA W/O SPO ACCESSORY REAR VIEW CAMERA W/ SPO ALARM W/O 2 SPEED TRANSFER CASE W/O FRONT SEAT COOLING HEATER W/O FRONT SEAT COOLING HEATER W/ FRONT SEAT COOOLING HEATER W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER CONTROL PCB RELAY FRT WPR YEL WIRE

4.3L 4.3L, 6.0L (VIN K) 6.0L PTO (VIN 5) A/C CMPRSR RELAY AIR BAG IGN FUSE 40 AUTOMATIC TRANSMISSION (4 SPEED A/T) AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE DRIVE MOTOR GENERATOR POWER INVERTER MODULE (6.0L (VIN 5)) ECM-IGN FUSE 56 ELECTRONIC BRAKE CONTROL MODULE (EBCM) ELECTRONIC, ACTIVE 2 SPEED FOG LAMP DRL PCB RELAY RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 7) FROM DLIS FUSE 35 (DIAGRAM 4 OF 7) FRONT DRIVE AXLE ACTUATOR FRT WPR FUSE 36 FUEL PUMP FLOW CONTROL MODULE HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH (IF EQUIPPED) INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE FRT WASH PCB RELAY PCB RELAY LEFT AIR ENGINE TEMPERATURE CONTROL ACTUATOR MODULE (ECM) (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) MISC ING FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK WIRE PNK/ WHT WIRE PNK/WHT WIRE REAR DEFOG RELAY RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SEAT CLIMATE CONTROL MODULE (IF EQUIPPED) SECONDARY FUEL PUMP (6.0L(VIN K) W/O AUXILIARY (FSCM) FUEL TANK) SEO/ALC FUSE 54 SERIAL DATA GATEWAY (SDG) MODULE STRTR RELAY TO FAN 1 FUSE 57 (DIAGRAM WIPER CONTROL 6 OF 7) PCB RELAY TRANS IGN 1 FUSE 19 TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

A/C CMPRSR RELAY AIR BAG IGN FUSE 37 AUX HVAC- IGN FUSE 45 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE CHMSL REAR CLIMATE CONTROL TRAILER BRAKE SEAT CONTROL MODULE MODULE (IF EQUIPPED) COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE, W/ LUXURY DIGITAL VIDEO DISC (DVD) CONTROL MODULE (IF EQUIPPED) DRL PCB RELAY EAP FUSE 35 ECM IGN FUSE 53 ELECTRONIC, ACTIVE 2 SPEED ENGINE CONTROL MODULE (ECM) FAN FUSE 68 FAN RELAY FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 5) FROM DLIS FUSE 32 (DIAGRAM 4 OF 5) FRONT DRIVE AXLE AXLE (W/ ACTIVE 2 SPEED PUSH- BUTTON CONTROL TRANSFER CASE) FRT WASH PCB RELAY FUSE FUSE 33 GLOW PLUG CONTROL MODULE (GPCM) HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PWR/TRN PCB RELAY RELAY HVAC-IGN FUSE 52 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) PNK (NOT USED) WIRE MISC IGN FUSE 40 MODE ACTUATOR NCA WIRE PARK ELECTRONIC ENABLE ADJUSTABLE PCB PEDALS RELAY PCB RELAY PNK WIRE PNK/WHT WIRE POWER TAKE OFF (PTO) MODULE (IF EQUIPPED) PRK LAMP RELAY REAR VIEW CAMERA REAR WIPER FUEL WASH SPEED PCB PMP DEFOG PCB PCB RELAY RELAY RELAY RELAY RELAY RECIRCULATION ACTUATOR RED WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECURITY VEHICLE INDICATOR INCLINATION LAMP SENSOR SEO SEO/ALC FUSE 51 STRTR RELAY TRANS IGN 1 FUSE 13 TRANSFER CASE SHIFT CONTROL MODULE STOP LAMP SWITCH TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY VEHICLE SHOCK SENSOR W/ FRONT SEAT COOLING HEATER W/ SPO ACCESSORY REAR VIEW CAMERA W/O SPO ACCESSORY REAR VIEW CAMERA W/ SPO ALARM W/O 2 SPEED TRANSFER CASE W/O FRONT SEAT COOLING HEATER W/O FRONT SEAT COOLING HEATER W/ FRONT SEAT COOOLING HEATER W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER CONTROL PCB RELAY FRT WPR YEL WIRE