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Home >> GMC >> 2000 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - Diesel >> Specifications >> Component Locator
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Component Locator

Component Locator

Name Location Locator View Connector End View
A/C Compressor Clutch On the front of the A/C compressor, in the left front side of the engine HVAC Component Viewsin HVAC Systems with A/C - Manual HVAC Connector End Views in HVAC Systems with A/C - Manual
A/C Compressor Clutch Relay In the underhood fuse-relay center, in the left rear side of the engine compartment, on the fender Power and Grounding Component Views in Wiring Systems Power and Grounding Connector End Views in Wiring Systems
A/C Compressor Cycling Switch On the top right of the A/C accumulator, in the right side of the engine compartment, on the bulkhead HVAC Component Viewsin HVAC Systems with A/C - Manual HVAC Connector End Views in HVAC Systems with A/C - Manual
A/C Compressor High Pressure Cutout Switch On the rear of the A/C compressor, in the left front side of the engine HVAC Component Views in HVAC Systems with A/C - Manual HVAC Connector End Viewsin HVAC Systems with A/C - Manual
Camshaft Position Sensor Top rear center of the engine Engine Controls Component Views Engine Controls Connector End Views
Clutch Pedal Position Switch Forward from the top of Clutch Pedal at the entrance to the clutch master cylinder Engine Electrical Component Viewsin Engine Electrical Engine Electrical Connector End Views in Engine Electrical
Crankshaft Position (CKP) Sensor Lower RF of Engine Block, near Crankshaft Engine Controls Component Views Engine Controls Connector End Views
Data Link Connector (DLC) Under LH of IP, LH of Steering Column, mounted to bottom of Knee Bolster Data Link Communications Component Views in Data Link Communications Data Link Communications Connector End Views in Data Link Communications
Electronic Brake Control Module (EBCM) Near Brake Master Cylinder, at LF Wheelhousing Antilock Brake System Component Views in Antilock Brake Systems Antilock Brake System Connector End Viewsin Antilock Brake Systems
Electronic Variable Orifice (EVO)/Passlock Module Under the center of the IP Theft Deterrent System Component Views in Theft Deterrent Theft Deterrent System Connector End Views in Theft Deterrent
Engine Coolant Temperature Sensor Top, right, front of engine, near the thermostat housing Engine Controls Component Views Engine Controls Connector End Views
Engine Oil Pressure Sensor/Fuel Pump Switch Top, rear of engine, between the cylinder banks, near the fuel management/filter assembly Engine Controls Component Views Engine Controls Connector End Views
Boost Pressure/BARO Sensor Top of Engine assembly Engine Controls Component Views Engine Controls Connector End Views
Fuel Heater Top rear of Engine in the fuel filter assembly Engine Controls Component Views Engine Controls Connector End Views
Fuel Lift Pump Inside LH Frame Rail, below LF Door Engine Controls Component Views Engine Controls Connector End Views
Fuel Balance Pump (Dual Tanks) Inside LH Frame Rail, ahead of rear axle Engine Controls Component Views Engine Controls Connector End Views
Fuel Tank Level Sender In Fuel Tank Engine Controls Component Views Engine Controls Connector End Views
Glow Plug Controller LR of Engine, near Bulkhead Engine Controls Component Views Engine Controls Connector End Views
Glow Plug Relay LR of Engine, near Bulkhead Engine Controls Component Views Engine Controls Connector End Views
HVAC Control Module Part of the heater controls, in the center of the IP, under the radio HVAC Component Viewsin HVAC Systems with A/C Manual HVAC Connector End Views in HVAC Systems with A/C - Manual
Instrument Cluster On the upper left end of the IP, above the steering column Instrument Panel, Gauges, and Console Component Views in Instrument Panel and Console Instrument Panel, Gauges, and Console Connector End Views in Instrument Panel and Console
Intake Air Temperature (IAT) Sensor At LF of Engine, near Intake Manifold opening Engine Controls Component Views Engine Controls Connector End Views
IP Fuse Block To the left of the IP, near the left front door jamb switch Power and Grounding Component Views in Wiring Systems Power and Grounding Connector End Views in Wiring Systems
Powertrain Control Module (PCM) Under RH end of IP, above Blower Motor, behind IP Compartment Box Engine Controls Component Views Powertrain Control Module Connector End Views
Radio, Connector C2 In the center of the IP Entertainment Component Views in Entertainment Entertainment Connector End Views in Entertainment
Remote Battery Stud On the rear of underhood fuse-relay center, toward the fender, Terminal for the battery cable and the glowplug feed Component View - Underhood Fuse Relay Center Power and Grounding Connector End Views in Wiring Systems
Stoplamp Switch On the top of the brake pedal Lighting Systems Component Views in Lighting Systems Lighting Systems Connector End Views in Lighting Systems
Transfer Case Shift Control Module (Automatic 4WD) Under IP, near the convience center Transfer Case Control Component Views in Transfer Case Transfer Case Control Connector End Views in Transfer Case
Transfer Case Timing Logic and Relay Module RR of Engine Compartment, near center of Bulkhead Transfer Case Control Component Views in Transfer Case Transfer Case Control Connector End Views in Transfer Case
Transfer Case Switch LH side of transfer case housing, toward the front Transfer Case Control Component Views in Transfer Case Transfer Case Control Connector End Views in Transfer Case
Underhood Fuse Block In the left rear side of the engine compartment, on the fender Power and Grounding Component Viewsin Wiring Systems Power and Grounding Connector End Views in Wiring Systems
Vehicle Speed Sensor (w/RWD) LR of Transmission Engine Controls Component Views Engine Controls Connector End Views
Vehicle Speed Sensor (w/4WD) LR of Transfer Case Engine Controls Component Views Engine Controls Connector End Views
Wastegate Solenoid Top LR of Engine, above Valve Cover Engine Controls Component Views Engine Controls Connector End Views
Water-in-Fuel Sensor Top near of Engine Engine Controls Component Views Engine Controls Connector End Views
C100 Part of the engine harness to IP harness, in the left rear side of the engine compartment, at the bulkhead Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C103 Part of the engine harness to fuel pump motor, in the left rear side of the engine compartment, under the brake master cylinder Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C112 Part of the engine harness to engine sensors, center rear of the engine Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C122 (M30) On the right side of the transmission Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C122 (MT1) On the left side of the transmission Harness Routing Viewsin Wiring Systems Inline Harness Connector End Views in Wiring Systems
C200 Behind the right side of the IP, near the heater motor, in foam wrap Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C204 Behind the right side of the IP Harness Routing Views in Wiring Systems Inline Harness Connector End Viewsin Wiring Systems
C223 At the convenience center Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C227 (Stoplamp Switch Jumper) IP harness, Inline to the Stoplamp Switch Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
C266 Part of the IP harness to steering column harness, to the left side of the steering column, near the bulkhead Harness Routing Views in Wiring Systems Inline Harness Connector End Views in Wiring Systems
D104 Part of the engine harness, approximately 28 cm (11 in) from the A/C compressor clutch connector -- --
G104 Top rear of the right cylinder head Power and Grounding Component Views in Wiring Systems --
G105 Right Rear of the cylinder head, cylinder #7 intake bolt Power and Grounding Component Viewsin Wiring Systems --
G404 Inside the left side frame rail, near the rear crossmember Power and Grounding Component Views in Wiring Systems --
P101 In the right rear side of the engine compartment, below the A/C accumulator Harness Routing Views in Wiring Systems --
S100 (6.5L - A/T) Engine harness, approx. 31 cm (12 in) from taillamp harness breakout -- --
S100 (6.5L - M/T Engine harness, approx. 37 cm (14.5 in) from EBCM breakout, toward taillamp harness -- --
S101 (Diesel) Engine harness approx. 6.5 cm (2.5 in) from EBCM harness breakout into the PCM harness -- --
S108 Engine harness, approx. 6 cm (2.5 in) from Transmission harness breakout, towards the PCM -- --
S111 Engine harness approx. 11 cm (4 in) from EBCM breakout, toward glow plugs -- --
S147 Engine harness, approx. 4 cm (1.5 in) from starter motor solenoid breakout -- --
S150 Engine harness, approx. 13 cm (5 in) from EBCM breakout -- --
S152 Engine harness, approx. 4 cm (1.5 in) from IP harness breakout, toward P101 -- --
S166 (A/T) Engine harness, approx. 8 cm (3 in) from fuel heater breakout -- --
S166 (M/T, HD) Engine harness, approx. 5 cm (2 in) from glow plugs breakout -- --
S166 (M/T, LD) Engine harness, approx. 1 cm (0.5 in) from fuel heater breakout -- --
S199 Engine harness, approx. 31 cm (12 in) from taillamp harness breakout -- --
S204 IP harness, approx. 10 cm (4 in) from C100, towards Data Link Connector (DLC) -- --
S211 IP harness, approx. 16 cm (6 in) into instrument cluster breakout -- --
S213 IP harness, approx. 4 cm (1.5 in) from steering column harness breakout, towards the DLC -- --
S215 IP harness, approx. 8 cm (3 in) from instrument cluster breakout, toward radio connectors breakout -- --
S220 IP harness, approx. 6 cm (2.5 in) from steering column harness breakout, toward C100 -- --
S221 IP harness, approx. 40 cm (15.5 in) from instrument cluster breakout -- --
S222 IP harness, approx. 20 cm (8 in) from inflatable restraint switch breakout -- --
S268 IP harness, approx. 7 cm (2.5 in) into the HVAC Control Switch harness breakout -- --
S280 IP harness, approx. 5 cm (2 in) from DLC breakout -- --
S298 IP harness, approx. 24 cm (9.5 in) from instrument cluster breakout, toward radio breakout -- --
S299 IP harness, approx. 4 cm (1.5 in) into the steering column harness breakout, toward C266 -- --
S314 (K300) Selectable 4W harness, approx. 5 cm (2 in) from transfer case relay breakout, toward front axle switch -- --
S318 Taillamp extension harness, approx. 10 cm (4 in) from fuel pump balance module breakout, toward engine harness -- --