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GMC Sierra 2500 HD 2005 - 2005 GENERAL MOTORS Sierra & Silverado
GMC Sierra 2500 HD 2005 - BUZZERS, RELAYS & TIMERS
GMC Sierra 2500 HD 2005 BUZZERS, RELAYS & TIMERS LOCATION
Component Location A/C COMP Relay In underhood fuse block. See Fig. 23. AF Fuel Mode Relay In AF relay block left (underhood). See Fig. 132. AF Fuel Pump Relay Connector C021 Left side of engine compartment. See Fig. 132. AUX HEATER PMP Relay In secondary underhood fuse block. See Fig. 24. Auxiliary Battery Relay At right rear of engine compartment. See Fig. 28. Auxiliary Battery Relay Electrical Connector Right rear of engine compartment. See Fig. 28. CNG SEL Left rear of engine compartment. See Fig. 134. DEFOG RELAY In I/P relay block. DRIVER UNLOCK Relay In left I/P fuse block. DRL Relay In underhood fuse block. See Fig. 23. Engine Glow Plug Relay (6.6L) At left rear of engine. See Fig. 73. FOG LP Relay In underhood fuse block. See Fig. 23. F/PMP Relay In underhood fuse block. See Fig. 23. Fuel Pump Relay (Secondary) On underhood fuse block bracket. See Fig. 91. HDLP-HI Relay In underhood fuse block. See Fig. 23. HDLP-LOW Relay In underhood fuse block. See Fig. 23. HORN Relay In underhood fuse block. See Fig. 23. IGN 1 Relay In underhood fuse block. See Fig. 23. Injector Relays (Even Bank) In AF relay block right (underhood). See Fig. 132. Injector Relays (Odd Bank) In AF relay block left (underhood). See Fig. 132. INJ POWER Left rear of engine compartment. See Fig. 134. INJ 1 Left rear of engine compartment. See Fig. 134. INJ 2 Left rear of engine compartment. See Fig. 134. INJ 3 Left rear of engine compartment. See Fig. 134. INJ 4 Left rear of engine compartment. See Fig. 134. INJ 5 Left rear of engine compartment. See Fig. 134. INJ 6 Left rear of engine compartment. See Fig. 134. INJ 7 Left rear of engine compartment. See Fig. 134. INJ 8 Left rear of engine compartment. See Fig. 134. Lock-Off Solenoid Relay Connector C020 Near underhood fuse block. See Fig. 132. LOCK Relay In left I/P fuse block. See Fig. 25. PARK LP Relay In underhood fuse block. See Fig. 23. Power Take Off (PTO) Relay Near underhood fuse block. See Fig. 113. PWR MAINT Relay In secondary underhood fuse block. See Fig. 24. Rear Defog Relay In instrument panel relay block. See Fig. 27. REDBOX COOL FAN Relay In secondary underhood fuse block. See Fig. 24. REDBOX COOL PMP/FAN Relay In secondary underhood fuse block. See Fig. 24. Right Battery Relay (TP2) Right rear of engine compartment. See Fig. 61. Roof Beacon Relay At lower left "B" pillar. RR FOG LP Relay In instrument panel fuse block. See Fig. 25. Spare Relay In instrument panel relay block. See Fig. 27. STARTER Relay In underhood fuse block. See Fig. 23. TRANS PMP Relay In secondary underhood fuse block. See Fig. 24. UNLOCK Relay In left I/P fuse block. See Fig. 25. W/S WASH Relay In underhood fuse block. See Fig. 23.
GMC Sierra 2500 HD 2005 - CIRCUIT PROTECTION DEVICES
GMC Sierra 2500 HD 2005 CIRCUIT PROTECTION DEVICES LOCATION
Component Location Fuse Block Connector - Underhood Below underhood fuse block. See Fig. 52. Fuse Block - I/P On lower left side of dash. See Fig. 115. Fuse Block - Mobile Radio Right side of dash. Fuse Block - Underhood At left side of engine compartment. See Fig. 113. Fuse Block - Underhood Cooling Fan (10 Series) Left side of engine compartment, rear of battery. Fuse Block - Underhood Secondary (HP2) Left side of engine compartment, rear of battery. I/P Relay Block Near left kick panel. See Fig. 117. Junction Block - I/P Right side of dash, behind access panel. Junction Block - Rear Inside left frame rail, near rear of vehicle. Underhood Fuse Block Eyelet Connector On underhood fuse block. See Fig. 52.
GMC Sierra 2500 HD 2005 - CONTROL UNITS
GMC Sierra 2500 HD 2005 CONTROL UNITS LOCATION
Component Location Alternative Fuel Injector Control Module (FICM) Below air filter assembly. See Fig. 133. Alternative Fuel Injector Control Module (FICM) Connector Below air cleaner assembly. See Fig. 133. Blower Motor Control Processor Near blower motor, on HVAC assembly. See Fig. 35. Body Control Module On lower left side of dash, below steering column. See Fig. 115. Body Control Module (BCM) Connectors On body control module. See Fig. 116. Cruise Control Module In left rear of engine compartment. See Fig. 109. Cruise Control Module Electrical Connector On cruise control module. See Fig. 109. Driver Door Module (DDM) In driver's door. See Fig. 118. Electronic Brake Control Module (EBCM) On left side of inner frame. See Fig. 17. Energy Storage Control Module (ESCM) In energy storage box. See Fig. 20. Engine Control Module (ECM) Connectors (6.6L) On engine control module. See Fig. 83. Engine Control Module (ECM) (6.6L) At left front of engine compartment. See Fig. 83. Flasher Module On bottom of instrument panel fuse block. See Fig. 26. Front Passenger Door Module (FPDM) In right front door. See Fig. 119. Fuel Injector Control Module (6.6L) Under engine air intake duct. See Fig. 81. Generator Battery Control Module Left front corner of engine compartment, on battery negative cable. HVAC Control Module In center of dash. See Fig. 33. Ignition Control Module (4.3L) At right rear of engine, near ground strap. Inflatable Restraint I/P Module Behind right side of dash. Inflatable Restraint Passenger Presence System (PPS) Module Below right front seat. See Fig. 104. Inflatable Restraint Sensing And Diagnostic Module (SDM) Under left front seat. See Fig. 19. Memory Seat Module Underside of left front seat. See Fig. 126. PCM Wire Harness Connectors On PCM. See Fig. 72. Powertrain Control Module (PCM) Left front of engine compartment. See Fig. 72. Rear Wheel Steering Control Module At left rear of vehicle, near spare tire bracket. Rear Wheel Steering Control Module On rear frame. See Fig. 41. Starter/Generator Control Module (Hybrid) Right rear of engine compartment. See Fig. 10. Throttle Actuator Control (TAC) Module Connector (4.8L, 5.3L & 6.0L) On throttle actuator control module. See Fig. 68. Throttle Actuator Control (TAC) Module Connector (6.6L) On throttle actuator control module. See Fig. 146. Throttle Actuator Control (TAC) Module (4.8L, 5.3L & 6.0L) At left rear of engine compartment. See Fig. 68. Transfer Case Shift Control Module Behind headlamp switch. See Fig. 47. Transfer Case Shift Control Module Connectors On Transfer Case Shift Control Module. See Fig. 47. Transmission Control Module At left front of engine compartment. Transmission Control Module Connectors On transmission control module. Vehicle Communication Interface Module (VCIM) Behind passenger air bag module. See Fig. 106. Vehicle Communication Interface Module (VCIM) Connectors On vehicle communication interface module. See Fig. 106. Windshield Wiper Motor Module Under windshield cowl, between wiper arms. See Fig. 131. Windshield Wiper Motor Module Electrical Connector On windshield wiper motor module. See Fig. 131.
GMC Sierra 2500 HD 2005 - MOTORS
GMC Sierra 2500 HD 2005 MOTORS LOCATION
Component Location Air Temperature Actuator (Left) At bottom center of HVAC control assembly. See Fig. 35. Air Temperature Actuator (Right) At top center of HVAC control assembly. See Fig. 34. A/T Shift Lock Control Actuator On steering column. See Fig. 102. Blower Motor Below right side of dash. See Fig. 35. Cooling Fan - Left Left front of engine compartment. Cooling Fan - Right Right front of engine compartment. Electro Hydraulic Power Steering (EHPS) Module Assembly Left front of engine. See Fig. 12. Energy Storage Box (ESB) Cooling Fan In energy storage box. See Fig. 20. Front Axle Actuator Connector (1500 Series) On front axle actuator. See Fig. 46. Front Axle Actuator Connector (2500 Series) On front axle actuator. See Fig. 45. Front Axle Actuator (1500 Series) On front axle. See Fig. 46. Front Axle Actuator (2500 Series) On axle housing. See Fig. 45. Fuel Pump And Sender Assembly In fuel tank. See Fig. 16. Fuel Pump (6.6L) In left side frame rail. See Fig. 82. Idle Air Control (IAC) Motor (4.8L, 5.3L & 6.0L) On throttle body assembly. See Fig. 62. Idle Air Control Valve (4.8L, 5.3L & 6.0L) On throttle body assembly. See Fig. 56. Ignition Lock Cylinder Control Actuator On steering column. See Fig. 114. Mode Actuator On left side of HVAC module. See Fig. 34. Rear Steering Gear Motor On rear steering gear. See Fig. 42. Recirculation Actuator On top center of HVAC module. See Fig. 34. Seat Bolster Motor (Driver) In driver's seat back. See Fig. 127. Seat Front Vertical Motor (Driver) Below driver's seat. See Fig. 126. Seat Front Vertical Motor (Front Passenger) Below right front seat. See Fig. 104. Seat Horizontal Motor (Driver) Below driver's seat. See Fig. 126. Seat Horizontal Motor (Front Passenger) Below right front seat. See Fig. 104. Seat Lumbar Motor (Driver) In driver's seat back. See Fig. 127. Seat Rear Vertical Motor (Driver) Below driver's seat. See Fig. 126. Seat Rear Vertical Motor (Front Passenger) Below right front seat. See Fig. 104. Seat Recliner Motor (Driver) Below driver's seat. See Fig. 126. Seat Recliner Motor (Front Passenger) Below right front seat. See Fig. 104. Starter (4.3L) Lower right side of engine. See Fig. 2. Starter (4.8L, 5.3L & 6.0L) Lower right side of engine. See Fig. 30. Supplemental Brake Assist Pump Motor Mounted to power brake booster. See Fig. 53. Supplemental Brake Assist Pump Motor Connector On Supplemental Brake Assist Pump Motor. See Fig. 53. Throttle Actuator Control (TAC) Motor Connector (4.8L, 5.3L & 6.0L) Near throttle body assembly. See Fig. 64. Throttle Actuator Control (TAC) Motor Connector (8.1L) On throttle actuator control motor. See Fig. 92. Throttle Actuator Control (TAC) Motor (4.8L, 5.3L & 6.0L) Near throttle body. See Fig. 64. Throttle Actuator Control (TAC) Motor (8.1L) On throttle body. See Fig. 94. Transfer Case Encoder Motor Left side of transfer case. See Fig. 48. Transfer Case Encoder Motor Connector On transfer case encoder motor. See Fig. 50. Window Motor (Driver) In driver's door. See Fig. 118. Window Motor (Front Passenger) In right front door. See Fig. 119. Window Motor (Left Rear) In left rear door. See Fig. 120. Window Motor (Right Rear) In right rear door. See Fig. 121. Windshield Washer Fluid Pump Connector On washer fluid pump. See Fig. 123.
GMC Sierra 2500 HD 2005 - SENDING UNITS & SENSORS
GMC Sierra 2500 HD 2005 SENDING UNITS & SENSORS LOCATION
Component Location Accelerator Pedal Position Sensor Connector (4.8L, 5.3L & 6.0L) On accelerator pedal position (APP) sensor. See Fig. 80. Accelerator Pedal Position Sensor Connector (8.1L) On accelerator pedal position sensor. See Fig. 97. Accelerator Pedal Position Sensor (4.8L, 5.3L & 6.0L) Driver's floor board, behind accelerator pedal. See Fig. 80. Accelerator Pedal Position Sensor (8.1L) Above accelerator pedal. See Fig. 97. A/C Refrigerant Pressure Sensor Connector (4.8L, 5.3L & 6.0L) On A/C Refrigerant Pressure Sensor. See Fig. 31. A/C Refrigerant Pressure Sensor (4.8L, 5.3L & 6.0L) Near right side of radiator support. See Fig. 31. Air Temperature Sensor Assembly (Inside) In headliner, above driver. Air Temperature Sensor Connector (Lower Right) On lower right air temperature sensor. See Fig. 35. Air Temperature Sensor Connector (Upper Left) On upper left air temperature sensor. See Fig. 36. Air Temperature Sensor Connector (Upper Right) On upper right air temperature sensor. See Fig. 36. Air Temperature Sensor (Lower Left) In lower left floor duct assembly. See Fig. 37. Air Temperature Sensor (Lower Right) At bottom center of HVAC box, in floor duct. See Fig. 38. Air Temperature Sensor (Outside) At center of core support, behind grille. Air Temperature Sensor (Outside) In front of radiator. See Fig. 130. Air Temperature Sensor (Upper) Below dash trim panel, in upper duct. Air Temperature Sensor (Upper Left) Upper left side of dash. See Fig. 36. Air Temperature Sensor (Upper Right) Upper right side of dash. See Fig. 36. Ambient Air Temperature Sensor In right front bumper filler assembly. See Fig. 32. Ambient Light Sensor On top center of dash. See Fig. 124. Ambient Light Sensor Connector On ambient light sensor. See Fig. 124. Ambient Light/Sunload Sensor Assembly On top center of dash. Automatic Transmission Fluid Temperature Sensor In automatic transmission. Automatic Transmission Input Shaft Speed Sensor In automatic transmission. Automatic Transmission Turbine Speed Sensor In upper left of transmission. BARO Barometric Pressure Sensor (6.6L) On left side of engine. See Fig. 75. Battery Temperature Sensor 1 In energy storage box. See Fig. 20. Battery Temperature Sensor 2 In battery storage box. See Fig. 20. Battery Temperature Sensor 3 In energy storage box. See Fig. 20. Boost Pressure Sensor (Diesel) Left front of engine intake manifold below A/C compressor. Boost Sensor Connector (6.6L) Right side of engine. See Fig. 76. Boost Sensor (6.6L) On right side of engine, on intake manifold. See Fig. 76. Camshaft Position (CMP) Sensor Connector (4.3L) Rear of engine. See Fig. 3. Camshaft Position (CMP) Sensor Connector (4.8L, 5.3L & 6.0L) Top rear of engine. See Fig. 4. Camshaft Position (CMP) Sensor (4.8L, 5.3L & 6.0L) On top center rear of engine. See Fig. 65. Camshaft Position Sensor Connector (8.1L) On camshaft position sensor. See Fig. 93. Camshaft Position Sensor (4.3L) In distributor. Camshaft Position Sensor (6.6L) On front of engine, near cooling fan pulley. See Fig. 78. Camshaft Position Sensor (8.1L) On left side of timing cover. See Fig. 93. Crankshaft Position (CKP) Sensor Connector (4.3L) Near bottom of crankshaft pulley. See Fig. 2. Crankshaft Position (CKP) Sensor Connector (8.1L) Top left rear of engine. See Fig. 9. Crankshaft Position (CKP) Sensor (4.3L) On bottom front of engine, near crank pulley. See Fig. 59. Crankshaft Position (CKP) Sensor (4.8L, 5.3L & 6.0L) On lower right rear of engine block. See Fig. 67. Crankshaft Position (CKP) Sensor (6.6L) On right side of engine front cover. See Fig. 77. Crankshaft Position (CKP) Sensor (8.1L) Top left of bellhousing. See Fig. 90. Current Sensor (Hybrid) In energy storage box. See Fig. 20. Engine Coolant Temperature (ECT) Sensor Connector (4.8L, 5.3L & 6.0L) Front left side of engine. See Fig. 5. Engine Coolant Temperature (ECT) Sensor Connector (8.1L) Near right valve cover. See Fig. 57. Engine Coolant Temperature (ECT) Sensor (4.3L) On rear side of left cylinder head. See Fig. 58. Engine Coolant Temperature (ECT) Sensor (4.8L, 5.3L & 6.0L) On front side of left cylinder head. See Fig. 56. Engine Coolant Temperature (ECT) Sensor (6.6L) On top front of engine. See Fig. 79. Engine Coolant Temperature (ECT) Sensor (8.1L) At middle of right cylinder head. Engine Knock Sensor 2 (KS) Connector (8.1L) On right side of engine, forward of starter. See Fig. 8. Engine Knock Sensor 2 (KS) (8.1L) Lower left side of engine. See Fig. 8. Engine Oil Level Sensor Connector (8.1L) Right side of oil pan. See Fig. 95. Engine Oil Pressure (EOP) Sensor Connector (4.3L) Left rear of engine. See Fig. 3. Engine Oil Pressure (EOP) Sensor Connector (4.8L, 5.3L & 6.0L) Top rear of engine block. See Fig. 4. Engine Oil Pressure (EOP) Sensor Connector (8.1L) Left rear of engine. See Fig. 9. Engine Oil Pressure (EOP) Sensor (4.8L, 5.3L & 6.0L) Top rear of engine. See Fig. 65. Engine Oil Pressure (EOP) Sensor (6.6L) On left rear side of engine block. Engine Oil Pressure (EOP) Sensor (8.1L) On top rear of engine. See Fig. 90. Fuel Composition Sensor At left side of engine compartment, attached to fuel lines. Fuel Level Sensor (Primary) In primary fuel tank. Fuel Level Sensor (Secondary) In secondary fuel tank. Fuel Pressure Sensor (6.6L) Top left side of engine. See Fig. 85. Fuel Pump & Sender Assembly (Primary) In primary fuel tank. Fuel Pump & Sender Assembly (Secondary) In secondary fuel tank. Fuel Rail Pressure (FRP) Sensor Connector C009 (CNG) Center of CNG fuel rail (left). See Fig. 133. Fuel Rail Pressure Sensor (6.6L) Under intake manifold shield, on fuel rail. Fuel Rail Temperature (FRT) Sensor Connector C008 Center of CNG fuel rail (right). See Fig. 133. Fuel Tank Pressure (FTP) Sensor (CNG) Threaded in high pressure lock-off (HPL) solenoid. See Fig. 132. Fuel Tank Pressure Sensor On fuel tank, integral to fuel pump & sender assembly. Fuel Tank Pressure Sensor Connector C034 (CNG) On fuel tank pressure sensor. See Fig. 132. Fuel Tank Temperature (FTT) Sensor Connector C033 Non-serviceable part of HPL. See Fig. 132. Fuel Temperature Sensor (6.6L) Top of engine. See Fig. 135. Heated Oxygen (HO2S) Sensor Bank 1 Sensor 1 (4.8L & 5.3L) In left exhaust pipe, before catalytic converter. See Fig. 70. Heated Oxygen (HO2S) Sensor Bank 1 Sensor 1 (6.0L) In left exhaust pipe, before catalytic converter. See Fig. 71. Heated Oxygen (HO2S) Sensor Bank 1 Sensor 1 (8.1L) In left exhaust pipe, before catalytic converter. See Fig. 89. Heated Oxygen (HO2S) Sensor Bank 1 Sensor 2 (4.8L & 5.3L) In left exhaust pipe, after catalytic converter. See Fig. 70. Heated Oxygen (HO2S) Sensor Bank 1 Sensor 2 (6.0L) In left exhaust pipe, after catalytic converter. See Fig. 71. Heated Oxygen (HO2S) Sensor Bank 2 Sensor 1 (4.8L & 5.3L) In right exhaust pipe, before catalytic converter. See Fig. 70. Heated Oxygen (HO2S) Sensor Bank 2 Sensor 1 (6.0L) In right exhaust pipe, before catalytic converter. See Fig. 71. Heated Oxygen (HO2S) Sensor Bank 2 Sensor 1 (8.1L) In right exhaust pipe, before catalytic converter. See Fig. 88. Heated Oxygen (HO2S) Sensor Bank 2 Sensor 2 (4.8L & 5.3L) In right exhaust pipe, after catalytic converter. See Fig. 70. Heated Oxygen (HO2S) Sensor Bank 2 Sensor 2 (6.0L) In right exhaust pipe, after catalytic converter. See Fig. 71. Heated Oxygen (HO2S) Sensor Bank 2 Sensor 2 (8.1L) In right exhaust pipe, after catalytic converter. See Fig. 87. Inflatable Restraint Front End Discriminating Sensor On bottom of radiator support. See Fig. 105. Inflatable Restraint Front End Sensor (Left) On left front of vehicle. See Fig. 136 & Fig. 137 . Inflatable Restraint Front End Sensor (Right) On right front of vehicle. See Fig. 136 & Fig. 137 . Inflatable Restraint Passenger Presence System (PPS) Sensor Below right front seat. See Fig. 104. Intake Air Temperature (IAT)/Mass Airflow (MAF) Sensor In air induction tube. See Fig. 69. Knock Sensor (KS) Connector (4.3L) Left rear of engine. See Fig. 3. Knock Sensor (KS) 1 Connector (8.1L) On knock sensor 1. See Fig. 96. Knock Sensor (KS) 1 (4.8L, 5.3L & 6.0L) Under intake manifold. See Fig. 66. Knock Sensor (KS) 1 (8.1L) Left side of engine. See Fig. 96. Knock Sensor (KS) 2 Connector (8.1L) On knock sensor 2. See Fig. 95. Knock Sensor (KS) 2 (4.8L, 5.3L & 6.0L) Under intake manifold. See Fig. 66. Knock Sensor (KS) 2 (8.1L) On right side of engine. See Fig. 95. Knock Sensor (KS) (4.3L) On rear of engine block. Manifold Absolute Pressure (MAP) Sensor Connector (8.1L) On MAP sensor. See Fig. 57. Manifold Absolute Pressure (MAP) Sensor Connector (8.1L) On MAP sensor. See Fig. 94. Manifold Absolute Pressure (MAP) Sensor (4.8L, 5.3L & 6.0L) On top rear of engine, on intake manifold. See Fig. 56. Manifold Absolute Pressure (MAP) Sensor (8.1L) On top rear of engine, on intake manifold. See Fig. 94. Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector (6.6L) On mass air flow (MAF)/intake air temperature (IAT) sensor. See Fig. 74. Mass Air Flow (MAF) Sensor Right side of engine compartment. See Fig. 28. Passlock Sensor On steering column. See Fig. 114. Propshaft Speed Sensor (Front) On left front side of transfer case. See Fig. 48. Propshaft Speed Sensor (Rear) On transfer case extension housing. See Fig. 48. Rear Wheel Position Sensor On rear steering gear. See Fig. 43. Steering Wheel Speed/Position Sensor On steering column. See Fig. 40. Sunload Sensor Top of instrument panel. See Fig. 39. Sunload Sensor Connector On sunload sensor. See Fig. 39. Throttle Position (TP) Sensor Connector (8.1L) On throttle position sensor. See Fig. 92. Throttle Position (TP) Sensor (4.8L, 5.3L & 6.0L) On throttle body assembly. See Fig. 56. Vehicle Speed Sensor Connector (NV 4500) Left side of transmission. See Fig. 100. Vehicle Speed Sensor Connector (4WD) On vehicle speed sensor. See Fig. 50. Vehicle Speed Sensor (NV 3500) On left rear side of transmission. See Fig. 98. Vehicle Speed Sensor (ZF S6-650) Left rear of transmission. See Fig. 101. Vehicle Speed Sensor (4L60-E) Right rear of transmission. See Fig. 103. Vehicle Speed Sensor (4WD) On left side of transfer case. See Fig. 44. Voltage Sensor (Hybrid) In energy storage box. See Fig. 20. Washer Fluid Level Sensor Connector On washer fluid reservoir. See Fig. 123. Water In Fuel Sensor (6.6L) On fuel filter element. See Fig. 84. Wheel Speed Sensor (Right Front) (2WD) On right front wheel hub assembly. See Fig. 54. Wheel Speed Sensor (Right Front) (4WD) On right front hub assembly. See Fig. 55.
GMC Sierra 2500 HD 2005 - SOLENOIDS & SOLENOID VALVES
GMC Sierra 2500 HD 2005 SOLENOIDS & SOLENOID VALVES LOCATION
Component Location A/C Compressor Clutch Connector (4.3L) On A/C compressor clutch. See Fig. 29. A/C Compressor Clutch Connector (4.8L, 5.3L & 6.0L) On A/C compressor clutch. See Fig. 30. A/C Compressor Clutch Connector (6.6L) On A/C compressor clutch. See Fig. 73. A/C Compressor Clutch Connector (8.1L) On A/C compressor clutch. See Fig. 95. A/C Compressor Clutch (4.8L, 5.3L & 6.0L) On A/C compressor. See Fig. 30. A/C Compressor Clutch (8.1L) On A/C compressor. See Fig. 95. Evaporative Emissions Canister Vent Solenoid Under rear of vehicle, near rear of fuel tank. On a frame rail-mounted bracket or a fuel tank-mounted clip. Evaporative Emissions (EVAP) Canister Purge Solenoid Connector (8.1L) On EVAP canister purge solenoid. See Fig. 92. Evaporative Emissions (EVAP) Canister Purge Solenoid (4.3L) At right side of engine, attached to intake manifold. Evaporative Emissions (EVAP) Canister Purge Solenoid (4.8L, 5.3L & 6.0L) Behind throttle body, near front of engine. See Fig. 56. Evaporative Emissions (EVAP) Canister Purge Solenoid (8.1L) Left side of throttle body, near left of engine. See Fig. 86. Exhaust Gas Recirculation (EGR) Valve Connector (4.3L) On EGR valve. See Fig. 29. Exhaust Gas Recirculation (EGR) Valve Connector (4.8L, 5.3L & 6.0L) On Exhaust Gas Recirculation (EGR) Valve. See Fig. 64. Exhaust Gas Recirculation (EGR) Valve Connector (8.1L) On EGR valve. See Fig. 90. Exhaust Gas Recirculation (EGR) Valve (4.8L, 5.3L & 6.0L) Right front of engine. See Fig. 64. Exhaust Gas Recirculation (EGR) Valve (8.1L) On top rear center of engine. See Fig. 90. Fuel Injector 1 (4.8L, 5.3L & 6.0L) Left front of engine. See Fig. 62. Fuel Injector 2 Connector (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. Fuel Injector 3 (4.8L, 5.3L & 6.0L) Left side of engine. See Fig. 62. Fuel Injector 5 (4.8L, 5.3L & 6.0L) Left side of engine. See Fig. 62. Fuel Injector 6 (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. Fuel Injector 7 (4.8L, 5.3L & 6.0L) Left rear of engine. See Fig. 62. Fuel Injector 8 (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. Gaseous Fuel Injector On right fuel rail. See Fig. 133. Gaseous Fuel Injector Connector C010-C017 On right fuel rail. See Fig. 133. High Pressure Lock-Off (HPL) Solenoid Threaded into CNG tank end. See Fig. 132. High Pressure Lock-Off (HPL) Solenoid Connector C032 Threaded into CNG tank end. See Fig. 132. Idle Air Control Valve (4.3L VIN W) Mounted to throttle body. Injector Connector (8.1L) Top left side of engine. See Fig. 92. Low Pressure Lock-Off (LPL) Solenoid Above left valve cover. See Fig. 132. Low Pressure Lock-Off (LPL) Solenoid Connector C031 Above left valve cover. See Fig. 132. Pressure Control (PC) Solenoid Valve (4L60-E) In automatic transmission. See Fig. 103. Shock Absorber Solenoid (Left Front) Part of left front shock. Shock Absorber Solenoid (Left Rear) Part of left rear shock. Shock Absorber Solenoid (Right Front) Part of right front shock. Shock Absorber Solenoid (Right Rear) Part of right rear shock. Starter Solenoid Connector (4.8L, 5.3L & 6.0L) On starter solenoid. See Fig. 30. Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve (4L60-E) In automatic transmission. See Fig. 103. Torque Converter Clutch (TCC) Solenoid Valve (4L60-E) In automatic transmission. See Fig. 103. Trim Solenoid A (W/5 Speed A/T) In automatic transmission. Trim Solenoid B (W/5 Speed A/T) In automatic transmission. 1-2 Shift Solenoid (SS) Valve (4L60-E) In automatic transmission. See Fig. 103. 2-3 Shift Solenoid (SS) Valve (4L60-E) In automatic transmission. See Fig. 103. 3-2 Shift Solenoid (SS) Valve (4L60-E) In automatic transmission. See Fig. 103.
GMC Sierra 2500 HD 2005 - SWITCHES
GMC Sierra 2500 HD 2005 SWITCHES LOCATION
Component Location A/C High Pressure Recirculation Switch Left front of engine compartment. See Fig. 136. A/C High Pressure Switch Connector (4.3L) On rear of A/C compressor. See Fig. 29. A/C High Pressure Switch Connector (4.8L, 5.3L & 6.0L) On A/C high pressure switch. See Fig. 30. A/C High Pressure Switch Connector (6.6L) On A/C high pressure switch. See Fig. 73. A/C High Pressure Switch (4.8L, 5.3L & 6.0L) On rear of A/C compressor. See Fig. 30. A/C High Pressure Switch (6.6L) On right side of compressor. A/C Low Pressure Switch On right side of accumulator. See Fig. 28. A/C Low Pressure Switch Connector (6.6L) Right rear of engine compartment. See Fig. 74. Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch (4L60-E) In automatic transmission. See Fig. 103. Back-Up Lamp Switch (NV 3500) On left side of transmission. See Fig. 98. Back-Up Lamp Switch (NV 4500) Left side of transmission. See Fig. 100. Back-Up Lamp Switch (ZF S6-650) Right rear of transmission. See Fig. 101. Brake Fluid Level Switch On left side of brake fluid reservoir. See Fig. 52. Brake Fluid Level Switch Connector On brake fluid level switch. See Fig. 52. Brake Pressure Differential Switch In brake line under master cylinder. Clutch Start Switch On top of clutch pedal assembly. See Fig. 99. Coolant Level Switch In coolant reservoir. Coolant Level Switch Connector Right rear of engine compartment. See Fig. 28. Door Jamb Switch (Mini Wedge) Connectors (Left Rear) Rear of left rear door. See Fig. 120. Door Jamb Switch (Mini Wedge) Connectors (Right Rear) Rear of right rear door. See Fig. 121. Door Jamb Switch (Mini Wedge) (Driver) Rear of driver's door. See Fig. 118. Door Jamb Switch (Mini Wedge) (Front Passenger) Rear of right front door. See Fig. 119. Engine Oil Level Switch (4.3L) On right side of oil pan. See Fig. 59. Engine Oil Level Switch (4.8L, 5.3L & 6.0L) On right side of oil pan. See Fig. 30. Engine Oil Level Switch (6.6L) On left rear of oil pan. Engine Oil Pressure (EOP) Switch (4.3L) On top rear of engine. Ignition Key Alarm Switch On steering column. See Fig. 114. Inflatable Restraint Seat Position Switch (Right) Below right front seat. See Fig. 104. Park Brake Switch Part of park brake assembly. Park/Neutral Position (PNP) Switch (4L60-E) On left side of transmission. See Fig. 103. Pressure Switch Manifold In automatic transmission. Seat Belt Switch Connector (Driver) On side of driver's seat. See Fig. 127. Service Disconnect Switch (Hybrid) On energy storage box. See Fig. 20. Stoplamp Switch On top of brake pedal bracket. See Fig. 51. Transfer Case Shift Control Switch Connector On top of transfer case. See Fig. 44.
GMC Sierra 2500 HD 2005 - MISCELLANEOUS
GMC Sierra 2500 HD 2005 MISCELLANEOUS LOCATION
Component Location Antenna Coax Connector Behind right side of dash. See Fig. 112. Audio Amplifier Under rear of center console. Back-Up Alarm At rear bumper. Battery Cable Junction Block (6.6L) Near left side of engine. See Fig. 75. Battery 1 (Hybrid) In energy storage box. See Fig. 20. Battery 2 (Hybrid) In energy storage box. See Fig. 20. Battery 3 (Hybrid) In energy storage box. See Fig. 20. Cellular And Navigation Antenna On roof, near left "A" pillar. See Fig. 107. Cellular Antenna (Connector) On vehicle communication interface module. See Fig. 106. Cellular Microphone In overhead console. See Fig. 108. Cellular Microphone Connector In overhead console. See Fig. 108. Data Link Connector Under left side of dash, below steering column. See Fig. 116. Digital Radio Receiver Behind right side of instrument panel. See Fig. 111. Digital Radio Receiver Connector On digital radio receiver. See Fig. 111. Electro Hydraulic Power Steering (EHPS) Module Assembly Left front of engine. See Fig. 12. Electro Hydraulic Power Steering (EHPS) 42V Harness Left rear of engine. See Fig. 11. Engine Coil Connector (8.1L) On right valve cover. See Fig. 57. Engine Coil Harness Connector (8.1L) On right valve cover. See Fig. 57. Fuel Heater (6.6L) On top of fuel filter element. Generator (Auxiliary) Left side of engine. See Fig. 60. Generator Connector (6.6L) Back of generator. See Fig. 73. Generator (Primary) Right side of engine. See Fig. 60. Glow Plug Controller Power (6.6L) Near underhood fuse block. See Fig. 146. Glow Plug Harness (6.6L) Left rear of engine. See Fig. 73. Heated Seat Element Connector (Driver Cushion) On side of driver's seat. See Fig. 127. Heated Seat Element (Driver Cushion) In driver's seat cushion. See Fig. 127. Horn-High Note (Uplevel) Right side of radiator support. See Fig. 122. Horn-Low Note Left side of radiator support. See Fig. 122. Ignition Coil Connector (Engine Side) (8.1L) On right valve cover. See Fig. 94. Ignition Coil Connector (Harness Side) (8.1L) On right valve cover. See Fig. 94. Ignition Coil Connector (8.1L) On ignition coil. See Fig. 92. Ignition Coils (5.3L) On top of left & right valve covers. Ignition Coils (6.0L) On top of left & right valve covers. Ignition Coils (8.1L) On top of left & right valve covers. See Fig. 92. Ignition Coil 1 (4.8L, 5.3L & 6.0L) Left side of engine. See Fig. 62. Ignition Coil 2 (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. Ignition Coil 3 (4.8L, 5.3L & 6.0L) Left side of engine. See Fig. 62. Ignition Coil (4.3L) On top right side of engine. Ignition Coil 4 (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. Ignition Coil (4.8L) On top of left & right valve covers. Ignition Coil 5 (4.8L, 5.3L & 6.0L) Left side of engine. See Fig. 62. Ignition Coil 6 (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. Ignition Coil 7 (4.8L, 5.3L & 6.0L) Left side of engine. See Fig. 62. Ignition Coil 8 (4.8L, 5.3L & 6.0L) Right side of engine. See Fig. 64. In Accessory Power Receptacle Connector Right side of energy storage box. See Fig. 155. In Accessory Power Receptacle Harness. Right side of vehicle. See Fig. 155. Inflatable Restraint Steering Wheel Module On steering wheel. See Fig. 114. Intake Air Heater (6.6L) Under intake manifold sight shield, inside air intake pipe. See Fig. 85. Intermediate Pressure Regulator Above left valve cover. See Fig. 133. I/P Harness Behind instrument panel. See Fig. 47. Navigation Antenna (Connector) On vehicle communication interface module. See Fig. 106. Negative Battery Cable (G100) Lower left radiator support. See Fig. 1. Negative Battery Cable (G105) Lower left side of engine. See Fig. 5. Rear EPTO Outlet Connector Near right rear frame rail. See Fig. 22. Sunload Sensor Harness Below top of instrument panel. See Fig. 39. Trailer Wiring Connector Rear of vehicle. See Fig. 125. Trailer Wiring Receptacle Rear of vehicle. See Fig. 125.
GMC Sierra 2500 HD 2005 - CONNECTORS
GMC Sierra 2500 HD 2005 CONNECTORS LOCATION
Component Location C004 (CNG) (Black, 8 Pin) Near underhood fuse block. See Fig. 132. C005 (CNG) (Black, 8 Pin) Near underhood fuse block. See Fig. 132. C006 (CNG) (Black, 6 Pin) Near underhood fuse block. See Fig. 132. C100 (Black, 16 Pin) Below underhood fuse block. See Fig. 140. C102 (W/O 4 Wheel Steering) (Black, 10 Pin) Below underhood fuse block. See Fig. 140. C102 (W/ 4 Wheel Steering) (Black, 38 Pin) Below underhood fuse block. C104 (Black, 12 Pin) Front side of fuse block. See Fig. 136. C105 (Black, 10 Pin) Near underhood fuse block. C107 (6.6L) (Black, 38 Pin) On top of left valve cover. See Fig. 73. C108 (6.6L) (Black, 24 Pin) On top of left valve cover. See Fig. 73. C109 (Black, 4 Pin) On top of valve cover. C110 (Black, 4 Pin) On top of valve cover. C111 (Black, 4 Pin) On top of valve cover. C112 (Black, 4 Pin) At left rear of engine compartment. C113 (Black, 6 Pin) On top of engine, next to intake manifold. C115 (Black, 24 Pin) At left rear of engine compartment. C116 (Black, 24 Pin) Attached to underhood fuse block. C117 (Black, 1 Pin) Left rear of engine compartment. See Fig. 138. C118 (Black, 1 Pin) At starter/generator control module, at right rear of engine compartment. C119 (Black, 2 Pin) Left rear of engine compartment. See Fig. 139. C120 (Black, 10 Pin) On front side of underhood fuse block. C125 (Light Gray, 8 Pin) On radiator support. C127 (Light Gray, 7 Pin) On radiator support. C148 (Light Gray, 7 Pin) On top left side of engine. See Fig. 143. C149 (Light Gray, 7 Pin) On top right side of engine. See Fig. 150. C150 (Black, 4 Pin) On left inner fender. See Fig. 49. C151 (Black, 12 Pin) On left inner fender. C152 (Blue, 12 Pin) Below underhood fuse block. See Fig. 140. C153 (4.3L) (Black, 3 Pin) On left inner fender. See Fig. 142. C154 (Black, 3 Pin) On left inner fender. C155 (8.1L) (Black, 10 Pin) Near left top front of engine. See Fig. 148. C160 (5Y0) (Black, 2 Pin) Left rear of engine compartment. See Fig. 139. C160 (9L4) (Black, 2 Pin) Left rear of engine compartment. See Fig. 138. C161 (5Y0) (Black, 1 Pin) Left rear of engine compartment. See Fig. 139. C180 (Black, 2 Pin) Under underhood fuse block. C198 (Black, 1 Pin) On left inner fender. C201 (Black, 32 Pin) On steering column. See Fig. 40. C202 (Black, 12 Pin) Behind left side of dash. See Fig. 110. C206 (Light Gray, 22 Pin) Behind left kick panel. C210 (Black, 2 Pin) Behind left side of dash. C214 (Black, 8 Pin) Behind upper left side of dash. C220 (Gray, 24 Pin) Behind center of dash. C221 (Yellow, 4 Pin) Behind left kick panel. C222 (Yellow, 4 Pin) Behind right kick panel. C223 (Black, 16 Pin) Behind left kick panel. C230 (Black, 2 Pin) Behind upper right side of dash. See Fig. 112. C249 (Black, 4 Pin) Behind center of dash. C250 (Gray, 6 Pin) Behind left side of dash. C305 (Black, 16 Pin) Under left front seat. See Fig. 19. C306 (Black, 40 Pin) Under front floor console. C310 (Natural, 17 Pin) At left "B" pillar. See Fig. 120. C320 (Light Gray, 13 Pin) Under left front seat. See Fig. 126. C321 (Blue, 24 Pin) Under left front seat. See Fig. 126. C322 (Natural, 10 Pin) Under left front seat. See Fig. 126. C323 (Black, 6 Pin) Under left front seat. See Fig. 126. C324 (Black, 8 Pin) Under left front seat. See Fig. 127. C325 (Gray, 6 Pin) Under left front seat. See Fig. 126. C326 (Gray, 6 Pin) Under right front seat. See Fig. 128. C329 (Gray, 4 Pin) Under right front seat. See Fig. 129. C350 (Black, 2 Pin) At top of transfer case. See Fig. 44. C355 (W/O Universal Garage Door Opener) (6 Pin) Under front over head console. C355 (W/ Universal Garage Door Opener) (3 Pin) Under front overhead console. C388 (Black, 6 Pin) Under right front seat. See Fig. 128. C396 (Black, 17 Pin) At right "B" pillar. See Fig. 18. C399 (Black, 16 Pin) Under right front seat. See Fig. 18. C404 (Black, 2 Pin) Under rear bumper. C405 (Black, 2 Pin) Under rear bumper. C428 (Black, 2 Pin) At rear of vehicle, behind center of rear bumper, near spare tire. C429 (Light Blue, 7 Pin) At rear of vehicle, behind center of rear bumper, near spare tire.
GMC Sierra 2500 HD 2005 - GROUNDS
GMC Sierra 2500 HD 2005 GROUNDS LOCATION
Component Location Engine Harness Ground Lower left front of engine. See Fig. 96. Ground Strap (4.3L) Left rear of engine. See Fig. 3. Ground Strap (8.1L) On rear of engine. See Fig. 9. G100 On lower left radiator support. See Fig. 1. G101 Top left front of engine, bolted to generator bracket. G102 (4.3L) On lower right front of engine block. See Fig. 2. G102 (4.8L, 5.3L & 6.0L) On left side of engine block. See Fig. 5. G102 (6.6L) On right side of engine block. See Fig. 6. G102 (8.1L) Left side of engine block. See Fig. 8. G102 (8.1L) On left side of engine block. G103 (4.3L) On right rear of engine block. See Fig. 3. G103 (4.8L, 5.3L & 6.0L) On right rear of engine block. See Fig. 4. G103 (6.0L) On right rear of engine block. G103 (6.6L) On right rear of engine block. See Fig. 6. G103 (8.1L) On right rear of engine block. See Fig. 9. G104 (4.3L) On left rear of engine block. See Fig. 3. G104 (4.8L, 5.3L & 6.0L) On left rear of engine block. See Fig. 4. G104 (6.0L) On left rear of engine block. G104 (6.6L) Lower left side of engine. See Fig. 7. G104 (8.1L) Left rear of engine block. See Fig. 9. G105 (4.3L) On lower right front of engine block. See Fig. 2. G105 (4.8L, 5.3L & 6.0L) Lower left side of engine. See Fig. 5. G106 On right front of engine block. G107 Ground strap from engine to frame rail. G108 (6.6L) Lower left side of engine. See Fig. 7. G109 (6.6L) On left side of engine block. See Fig. 6. G110 (1500 Series) On left front body mount. See Fig. 46. G110 (2500 Series) On left front body mount. See Fig. 45. G115 On lower right rear of engine compartment on the cowl. G120 (Hybrid) Right rear of engine compartment. See Fig. 10. G121 (Hybrid) Right rear of engine compartment. See Fig. 11. G122 (Hybrid) Left front of engine. See Fig. 12. G200 Behind right side of dash, near right "A" pillar. See Fig. 13. G203 Behind left side of dash, near left "A" pillar. See Fig. 14. G302 (W/ Heavy Duty) Left side of fuel tank. See Fig. 16. G302 (W/O Heavy Duty) On left front body mount. See Fig. 15. G304 Under right front seat. See Fig. 18. G305 On left "B" pillar. See Fig. 19. G306 On right "B" pillar. See Fig. 18. G310 (Hybrid) In energy storage box. See Fig. 20. G311 (Hybrid) In energy storage box. See Fig. 20. G390 Near "C" pillar. G401 On spare tire hoist bracket. See Fig. 21. G403 On left rear body mount. See Fig. 17. G405 On right rear frame rail. See Fig. 22. G410 On right rear inner side body panel.
GMC Sierra 2500 HD 2005 - SPLICES
GMC Sierra 2500 HD 2005 SPLICES LOCATION
Component Location SP205 In I/P harness. See Fig. 116. SP207 Left kick panel. See Fig. 117. SP250 Near HVAC control module. See Fig. 110. S100 In forward lamp harness. See Fig. 136 & Fig. 137 . S101 In engine harness. See Fig. 136 & Fig. 137 . S102 (4.3L) In engine harness. See Fig. 141. S102 (6.6L) In engine harness. See Fig. 145. S102 (8.1L) In engine harness. See Fig. 148. S103 (4.3L) In engine harness. See Fig. 141. S103 (8.1L) In engine harness. See Fig. 148. S104 In engine harness. See Fig. 143. S107 In forward lamp harness. S110 (4.3L) In engine harness. See Fig. 142. S110 (8.1L) In engine harness. See Fig. 149. S111 In chassis harness. S118 In engine harness. See Fig. 144. S119 (6.6L) In engine harness. See Fig. 145. S120 In the 42V harness. See Fig. 155. S121 In the 42V harness. See Fig. 155. S127 In engine harness. See Fig. 145. S132 (8.1L) In engine harness. See Fig. 148. S141 (6.6L) In engine harness. See Fig. 147. S147 In engine harness. See Fig. 145. S148 In engine harness. See Fig. 145. S150 In chassis harness. S151 (8.1L) In ignition coil jumper harness. See Fig. 148. S152 In injector jumper harness. S153 In ignition coil jumper harness. S154 In injector jumper harness. S156 In engine harness. S157 (4.8L, 5.3L, & 6.0L) In engine harness approximately 4 cm (1.57 in) before C149 breakout. S157 (8.1L) In engine harness. See Fig. 150. S159 In engine harness. S160 (8.1L) In ignition coil jumper harness. See Fig. 150. S161 In I/P harness. S162 In I/P harness. S163 (8.1L) In engine harness. See Fig. 148. S164 (6.6L) In engine harness. See Fig. 145. S164 (8.1L) In engine harness. See Fig. 148. S165 (8.1L) In engine harness. See Fig. 149. S166 In forward lamp harness, approximately 5 cm (1.97 in)from C104 breakout. S167 (W/ Hybrid Propulsion Electric) In engine harness, approximately 11.43 cm (4.5 in) from fuel heater connector breakout. S167 (W/O Hybrid Propulsion Electric) In engine harness, approximately 13 cm (5.12 in) from left fuel injector bank breakout. S168 In engine harness, approximately 10.16 cm (4 in) from fuel injector control module C1 breakout. S169 In engine harness, approximately 12.70 cm (5 in) from fuel injector control module C1 breakout. S181 In engine harness, approximately 5.08 cm (2 in) from fuel injector control module C1 breakout. S182 In engine harness, approximately 7.62 cm (3 in) from fuel injector control module C1 breakout. S197 In battery positive cable. S200 At roof marker lights. S201 At roof marker lights. S202 In I/P harness. See Fig. 153. S205 In I/P harness. See Fig. 154. S206 In I/P harness. S207 In headliner harness. S210 In I/P harness. See Fig. 154. S212 In I/P harness. See Fig. 154. S213 In I/P harness. See Fig. 153. S214 In I/P harness. See Fig. 153. S215 In brake clutch harness. S216 In steering column harness. S217 In steering column harness. S218 In I/P harness. See Fig. 154. S219 In brake clutch harness. S220 In SEO harness. See Fig. 151. S221 In SEO harness. See Fig. 152. S222 In SEO harness. See Fig. 152. S223 In SEO harness. See Fig. 151. S240 In steering column harness. S241 In steering column harness. S260 In steering wheel controls harness. S301 In console harness. S303 In console harness, approximately 11.5 cm (4.52 in) before C306 breakout. S307 In console harness. S309 In driver seat harness. S310 In driver seat harness. S311 In driver seat harness. S314 In driver seat harness. S315 In driver seat harness. S316 In driver seat harness. S322 In driver seat harness. S326 In the 42V harness. See Fig. 155. S328 In passenger seat harness. S329 In passenger seat harness. S330 In accessory power receptacle harness. See Fig. 155. S331 In accessory power receptacle harness. See Fig. 155. S331 In accessory power receptacle harness. See Fig. 155. S333 In console harness. S335 In dash, approximately 6.4 cm (2.56 in) from 202 breakout. S350 In chassis harness. S351 In sunroof harness. S408 In left rear lamp harness. S412 In left rear lamp harness. S413 In right rear lamp harness. S414 In camper/5th wheel harness 24 cm (9.44 in) from trailer connector breakout. S415 In camper/5th wheel harness 37 cm (14.6 in) from trailer connector breakout. S416 In camper/5th wheel harness 18.5 cm (7.28 in)from trailer connector breakout. S417 In camper/5th wheel harness 30.5 cm (12 in) from trailer connector breakout. S418 In camper/5th wheel harness 30.5 cm (12 in) from trailer connector breakout. S420 In license lamp harness. S421 In license lamp harness. S422 In license lamp harness. S423 In license lamp harness. S424 In license lamp harness. S430 In the 120V harness. See Fig. 155. S431 In pigtail of EPTO outlet attached to truck bed. S480 In right rear lamp harness. S710 In left rear door harness. S810 In right rear door harness.
GMC Sierra 2500 HD 2005 - COMPONENT LOCATION GRAPHICS
NOTE:
Fig.res may show multiple component locations. - appropriate table for proper figure references.
Fig. 1: GMC Sierra 2500 HD 2005 - Component Locations - Lower Left Radiator Support
Fig. 2: GMC Sierra 2500 HD 2005 - Component Locations - Lower Right Side Of Engine (4.3L)
Fig. 3: GMC Sierra 2500 HD 2005 - Component Locations - Rear Of Engine (4.3L)
Fig. 4: GMC Sierra 2500 HD 2005 - Component Locations - Rear Of Engine (4.8L, 5.3L & 6.0L)
Fig. 6: GMC Sierra 2500 HD 2005 - Component Locations - Lower Right Side Of Engine (6.6L)
Fig. 7: GMC Sierra 2500 HD 2005 - Component Locations - Lower Left Side Of Engine (6.6L)
Fig. 8: GMC Sierra 2500 HD 2005 - Component Locations - Lower Left Front Of Engine (8.1L)
Fig. 9: GMC Sierra 2500 HD 2005 - Component Locations - Top Rear Of Engine (8.1L)
Fig. 10: GMC Sierra 2500 HD 2005 - Component Locations - Right Rear Of Engine Compartment (Hybrid)
Fig. 11: GMC Sierra 2500 HD 2005 - Component Locations - Left Rear Of Engine (Hybrid)
Fig. 12: GMC Sierra 2500 HD 2005 - Component Locations - Left Front Of Engine (Hybrid)
Fig. 13: GMC Sierra 2500 HD 2005 - Component Locations - Right Side Of Instrument Panel
Fig. 14: GMC Sierra 2500 HD 2005 - Component Locations - Top Left Side Of Dash
Fig. 15: GMC Sierra 2500 HD 2005 - Component Locations - Left Front Body Mount
Fig. 16: GMC Sierra 2500 HD 2005 - Component Locations - Top Of Fuel Tank (W/Heavy Duty)
Fig. 17: GMC Sierra 2500 HD 2005 - Component Locations - Left Frame Rail
Fig. 18: GMC Sierra 2500 HD 2005 - Component Locations - Right "B" Pillar
Fig. 19: GMC Sierra 2500 HD 2005 - Component Locations - Left "B" Pillar (Crew Cab)
Fig. 20: GMC Sierra 2500 HD 2005 - Component Locations - Energy Storage Box Components (Hybrid)
Fig. 21: GMC Sierra 2500 HD 2005 - Component Locations - Top Rear Of Frame
Fig. 22: GMC Sierra 2500 HD 2005 - Component Locations - Right Rear Of Frame
Fig. 23: GMC Sierra 2500 HD 2005 - Component Locations - Underhood Fuse Block
Fig. 24: GMC Sierra 2500 HD 2005 - Component Locations - Underhood Fuse Block (Secondary)
Fig. 25: GMC Sierra 2500 HD 2005 - Component Locations - Instrument Panel Fuse Block
Fig. 26: GMC Sierra 2500 HD 2005 - Component Locations - Instrument Panel Fuse Block (Bottom View)
Fig. 27: GMC Sierra 2500 HD 2005 - Component Locations - Relay Block
Fig. 28: GMC Sierra 2500 HD 2005 - Component Locations - Right Rear Of Engine Compartment
Fig. 29: GMC Sierra 2500 HD 2005 - Component Locations - A/C Compressor (4.3L)
Fig. 30: GMC Sierra 2500 HD 2005 - Component Locations - A/C Compressor (4.8L, 5.3L & 6.0L)
Fig. 31: GMC Sierra 2500 HD 2005 - Component Locations - A/C High Pressure Line
Fig. 32: GMC Sierra 2500 HD 2005 - Component Locations - Right Side Of Grille
Fig. 33: GMC Sierra 2500 HD 2005 - Component Locations - HVAC Control Module
Fig. 34: GMC Sierra 2500 HD 2005 - Component Locations - HVAC Module Assembly
Fig. 35: GMC Sierra 2500 HD 2005 - Component Locations - HVAC Module Assembly (Bottom)
Fig. 36: GMC Sierra 2500 HD 2005 - Component Locations - Air Temperature Sensors
Fig. 37: GMC Sierra 2500 HD 2005 - Component Locations - Air Temperature Sensor (Lower Left)
Fig. 38: GMC Sierra 2500 HD 2005 - Component Locations - Air Temperature Sensor (Lower Right)
Fig. 39: GMC Sierra 2500 HD 2005 - Component Locations - Sunload Sensor Assembly
Fig. 40: GMC Sierra 2500 HD 2005 - Component Locations - Steering Column
Fig. 41: GMC Sierra 2500 HD 2005 - Component Locations - Rear Wheel Steering Control Module
Fig. 42: GMC Sierra 2500 HD 2005 - Component Locations - Rear Steering Gear Motor
Fig. 43: GMC Sierra 2500 HD 2005 - Component Locations - Rear Wheel Position Sensor
Fig. 44: GMC Sierra 2500 HD 2005 - Component Locations - Transfer Case (NVG 261)
Fig. 45: GMC Sierra 2500 HD 2005 - Component Locations - Front Drive Axle (2500 Series)
Fig. 46: GMC Sierra 2500 HD 2005 - Component Locations - Front Drive Axle (1500 Series)
Fig. 47: GMC Sierra 2500 HD 2005 - Component Locations - Transfer Case Shift Control Module
Fig. 48: GMC Sierra 2500 HD 2005 - Component Locations - Transfer Case
Fig. 49: GMC Sierra 2500 HD 2005 - Component Locations - Front Drive Axle Harness
Fig. 50: GMC Sierra 2500 HD 2005 - Component Locations - Transfer Case Encoder Motor
Fig. 51: GMC Sierra 2500 HD 2005 - Component Locations - Stop Lamp Switch
Fig. 52: GMC Sierra 2500 HD 2005 - Component Locations - Brake Fluid Level Switch
Fig. 53: GMC Sierra 2500 HD 2005 - Component Locations - Supplemental Brake Assist Pump
Fig. 54: GMC Sierra 2500 HD 2005 - Component Locations - Wheel Speed Sensor (Right Front) (2WD)
Fig. 55: GMC Sierra 2500 HD 2005 - Component Locations - Wheel Speed Sensor (Right Front) (4WD)
Fig. 56: GMC Sierra 2500 HD 2005 - Component Locations - Left Front Of Engine (4.8L, 5.3L & 6.0L)
Fig. 57: GMC Sierra 2500 HD 2005 - Component Locations - Top Right Of Engine (8.1L)
Fig. 59: GMC Sierra 2500 HD 2005 - Component Locations - Lower Right Front Of Engine (4.3L)
Fig. 60: GMC Sierra 2500 HD 2005 - Component Locations - Generators (6.6L)
Fig. 61: GMC Sierra 2500 HD 2005 - Component Locations - Auxiliary Battery
Fig. 62: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine (4.8L, 5.3L & 6.0L)
Fig. 63: GMC Sierra 2500 HD 2005 - Component Locations - EVAP Canister Vent Solenoid
Fig. 64: GMC Sierra 2500 HD 2005 - Component Locations - Right Valve Cover (4.8L, 5.3L & 6.0L)
Fig. 65: GMC Sierra 2500 HD 2005 - Component Locations - Top Rear Of Engine (4.8L, 5.3L & 6.0L)
Fig. 66: GMC Sierra 2500 HD 2005 - Component Locations - Knock Sensors (4.8L, 5.3L & 6.0L)
Fig. 68: GMC Sierra 2500 HD 2005 - Component Locations - Throttle Actuator Control (TAC) Module
Fig. 69: GMC Sierra 2500 HD 2005 - Component Locations - Air Induction Components
Fig. 70: GMC Sierra 2500 HD 2005 - Component Locations - Heated Oxygen (HO2S) Sensors (4.8L & 5.3L)
Fig. 71: GMC Sierra 2500 HD 2005 - Component Locations - Heated Oxygen (HO2S) Sensors (6.0L)
Fig. 72: GMC Sierra 2500 HD 2005 - Component Locations - Powertrain Control Module (PCM)
Fig. 73: GMC Sierra 2500 HD 2005 - Component Locations - Left Front Of Engine (6.6L) (LB7)
Fig. 76: GMC Sierra 2500 HD 2005 - Component Locations - Boost Sensor (6.6L) (LB7)
Fig. 77: GMC Sierra 2500 HD 2005 - Component Locations - Crankshaft Sensor (6.6L) (LB7)
Fig. 78: GMC Sierra 2500 HD 2005 - Component Locations - Camshaft Sensor (6.6L) (LB7)
Fig. 80: GMC Sierra 2500 HD 2005 - Component Locations - Accelerator Pedal Position (APP) Sensor
Fig. 81: GMC Sierra 2500 HD 2005 - Component Locations - Fuel Injector Control Module (6.6L) (LB7)
Fig. 82: GMC Sierra 2500 HD 2005 - Component Locations - Fuel Pump (6.6L) (LB7)
Fig. 83: GMC Sierra 2500 HD 2005 - Component Locations - Engine Control Module (6.6L)
Fig. 84: GMC Sierra 2500 HD 2005 - Component Locations - Water In Fuel Sensor (6.6L)
Fig. 86: GMC Sierra 2500 HD 2005 - Component Locations - EVAP Canister Purge Solenoid
Fig. 89: GMC Sierra 2500 HD 2005 - Component Locations - Automatic Transmission (8.1L)
Fig. 90: GMC Sierra 2500 HD 2005 - Component Locations - Rear Of Engine (8.1L)
Fig. 91: GMC Sierra 2500 HD 2005 - Component Locations - Fuel Pump Relay-Secondary (8.1L)
Fig. 92: GMC Sierra 2500 HD 2005 - Component Locations - Upper Left Side Of Engine (8.1L)
Fig. 93: GMC Sierra 2500 HD 2005 - Component Locations - Camshaft Position (CMP) Sensor (8.1L)
Fig. 94: GMC Sierra 2500 HD 2005 - Component Locations - Upper Right Side Of Engine (8.1L)
Fig. 95: GMC Sierra 2500 HD 2005 - Component Locations - Lower Right Side Of Engine (8.1L)
Fig. 96: GMC Sierra 2500 HD 2005 - Component Locations - Lower Left Side Of Engine (8.1L)
Fig. 98: GMC Sierra 2500 HD 2005 - Component Locations - Manual Transmission (NV 3500)
Fig. 99: GMC Sierra 2500 HD 2005 - Component Locations - Clutch Start Switch
Fig. 100: GMC Sierra 2500 HD 2005 - Component Locations - Manual Transmission (NV 4500)
Fig. 101: GMC Sierra 2500 HD 2005 - Component Locations - Manual Transmission (ZF S6-650)
Fig. 102: GMC Sierra 2500 HD 2005 - Component Locations - Lower Steering Column
Fig. 103: GMC Sierra 2500 HD 2005 - Component Locations - Transmission Components (4L60-E)
Fig. 104: GMC Sierra 2500 HD 2005 - Component Locations - Below Right Front Seat
Fig. 105: GMC Sierra 2500 HD 2005 - Component Locations - Radiator Support
Fig. 106: GMC Sierra 2500 HD 2005 - Component Locations - Behind Right Side Of Dash
Fig. 107: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Roof
Fig. 108: GMC Sierra 2500 HD 2005 - Component Locations - Overhead Console
Fig. 109: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine Compartment
Fig. 110: GMC Sierra 2500 HD 2005 - Component Locations - Behind Left Side Of Dash
Fig. 111: GMC Sierra 2500 HD 2005 - Component Locations - Behind Right Side Of Dash
Fig. 112: GMC Sierra 2500 HD 2005 - Component Locations - Behind Right Side Of Dash
Fig. 113: GMC Sierra 2500 HD 2005 - Component Locations - Power Take-Off Relay
Fig. 114: GMC Sierra 2500 HD 2005 - Component Locations - Upper Steering Column
Fig. 115: GMC Sierra 2500 HD 2005 - Component Locations - Body Control Module
Fig. 116: GMC Sierra 2500 HD 2005 - Component Locations - Lower Left Dash
Fig. 117: GMC Sierra 2500 HD 2005 - Component Locations - Left Kick Panel
Fig. 118: GMC Sierra 2500 HD 2005 - Component Locations - Driver Door
Fig. 119: GMC Sierra 2500 HD 2005 - Component Locations - Right Front Door
Fig. 120: GMC Sierra 2500 HD 2005 - Component Locations - Left Rear Door
Fig. 121: GMC Sierra 2500 HD 2005 - Component Locations - Right Rear Door
Fig. 122: GMC Sierra 2500 HD 2005 - Component Locations - Radiator Support
Fig. 123: GMC Sierra 2500 HD 2005 - Component Locations - Windshield Washer Reservoir
Fig. 124: GMC Sierra 2500 HD 2005 - Component Locations - Top Of Dash
Fig. 125: GMC Sierra 2500 HD 2005 - Component Locations - Trailer Wiring
Fig. 126: GMC Sierra 2500 HD 2005 - Component Locations - Bottom Of Driver Seat
Fig. 127: GMC Sierra 2500 HD 2005 - Component Locations - Side Of Driver Seat
Fig. 128: GMC Sierra 2500 HD 2005 - Component Locations - Bottom Of Right Front Seat
Fig. 129: GMC Sierra 2500 HD 2005 - Component Locations - Side Of Right Front Seat
Fig. 130: GMC Sierra 2500 HD 2005 - Component Locations - Front Of Radiator
Fig. 131: GMC Sierra 2500 HD 2005 - Component Locations - Left Rear Of Engine Compartment
Fig. 132: GMC Sierra 2500 HD 2005 - Component Locations - CNG Components (1 Of 2)
Fig. 133: GMC Sierra 2500 HD 2005 - Component Locations - CNG Components (2 Of 2)
Fig. 134: GMC Sierra 2500 HD 2005 - Component Locations - Alternative Fuel Injector Relays
Fig. 135: GMC Sierra 2500 HD 2005 - Component Locations - Top Of The Engine Component Views - 6.6L
GMC Sierra 2500 HD 2005 Callouts For
Fig. 135
Callout Component Name 1 Fuel Heater 2 Fuel Filter 3 Water In Fuel (WIF) Sensor 4 Fuel Pressure Sensor 5 Fuel Temperature Sensor 6 Glow Plug Controller 7 Baro Sensor 8 Boost Pressure Sensor 9 Fuel Pressure Regulator 10 Fuel Injection Control Module (FICM) 11 Exhaust Gas Recirculation (EGR) Valve
Fig. 136: GMC Sierra 2500 HD 2005 - Component Locations - Forward Lamp Harness (1 Of 2)
Fig. 137: GMC Sierra 2500 HD 2005 - Component Locations - Forward Lamp Harness (2 Of 2)
Fig. 138: GMC Sierra 2500 HD 2005 - Component Locations - Left Rear Of Engine Compartment (9L4)
Fig. 139: GMC Sierra 2500 HD 2005 - Component Locations - Left Rear Of Engine Compartment (5Y0)
Fig. 140: GMC Sierra 2500 HD 2005 - Component Locations - Below Underhood Fuse Block
Fig. 141: GMC Sierra 2500 HD 2005 - Component Locations - Engine Harness (4.3L) (1 Of 2)
Fig. 142: GMC Sierra 2500 HD 2005 - Component Locations - Engine Harness (4.3L) (2 Of 2)
Fig. 143: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine (4.8L, 5.3L & 6.0L)
Fig. 144: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine (6.6L) (1 Of 2)
Fig. 145: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine (6.6L) (2 Of 2)
Fig. 146: GMC Sierra 2500 HD 2005 - Component Locations - Right Side Of Engine (6.6L) (1 Of 2)
Fig. 147: GMC Sierra 2500 HD 2005 - Component Locations - Right Side Of Engine (6.6L) (2 Of 2)
Fig. 148: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine (8.1L) (1 Of 2)
Fig. 149: GMC Sierra 2500 HD 2005 - Component Locations - Left Side Of Engine (8.1L) (2 Of 2)
Fig. 150: GMC Sierra 2500 HD 2005 - Component Locations - Right Side Of Engine (8.1L)
Fig. 151: GMC Sierra 2500 HD 2005 - Component Locations - SEO Harness Routing (1 Of 2)
Fig. 152: GMC Sierra 2500 HD 2005 - Component Locations - SEO Harness Routing (2 Of 2)
Fig. 153: GMC Sierra 2500 HD 2005 - Component Locations - Dash (1 Of 2)
Fig. 154: GMC Sierra 2500 HD 2005 - Component Locations - Dash (2 Of 2)
