Chevrolet Suburban C2500 1998 - 1998 GENERAL MOTORS "C" & "K" Series, Sierra, Suburban, Tahoe & Yukon

Chevrolet Suburban C2500 1998 - BUZZERS, RELAYS & TIMERS

Chevrolet Suburban C2500 1998 BUZZERS, RELAYS & TIMERS

Component	Component Location
A/C Compressor Clutch Relay	In underhood fuse/relay center.
Air Injection Reaction Relay (7.4L VIN J)	In underhood fuse/relay center. See Fig. 4.
Auxiliary Battery Relay	On left front inner fender panel, next to fuse/relay center.
Auxiliary Blower Motor Relays (High/Med/Lo) (Rear)	On auxiliary A/C-heater blower housing.
Auxiliary Cooling Fan Relay	In underhood fuse/relay center.
Blower Motor Relays (High/Lo) (Front)	On top of front A/C-heater blower housing.
Brake Lamp Relay	In underhood fuse/relay center.
Daytime Running Lamp (DRL) Relay	Behind left side of dash, on convenience center.
Door Lock Relay	Under center of dash, near remote control door lock receiver.
Emergency Vehicle Front Lamp Relay	Behind right side of dash.
Fog Lamp Relay	Behind left side of dash, on convenience center.
Fuel Pump Balance Relay (6.5L VIN F & S)	On fuel pump balance module.
Fuel Pump Relay (4.3L VIN W)	In underhood fuse/relay center. See Fig. 1.
Fuel Pump Relay (5.0L VIN M & 5.7L VIN R)	In underhood fuse/relay center. See Fig. 2.
Fuel Pump Relay (6.5L VIN F & S)	In underhood fuse/relay center.
Fuel Pump Relay (7.4L VIN J)	In underhood fuse/relay center. See Fig. 4.
Glow Plug Relay (6.5L VIN F & S)	On top left rear of engine. See Fig. 3.
Heated Mirror Relay	On convenience center.
Horn Relay	On convenience center.
Power Amplifier Relay	Under left side of dash, on right of brake pedal bracket.
Spot Lamp Relay	Behind dash, near convenience center.
Starter Relay	In underhood fuse/relay center.
Stop Lamp Relay	In underhood fuse/relay center.
Transfer Case Relay	On right side of firewall, near center of cowl.
Turn/Hazard Flasher	On convenience center.

Chevrolet Suburban C2500 1998 - CIRCUIT PROTECTION DEVICES

Chevrolet Suburban C2500 1998 CIRCUIT PROTECTION DEVICES

Component	Component Location
Auxiliary Power Center	Center of dash, below heater controls.
Circuit Breakers	On dash fuse block.
Convenience Center	Under left side of dash.
Dash Fuse Block (4.3L VIN W)	Under left side of dash. See Fig. 1.
Dash Fuse Block (5.0L VIN M & 5.7L VIN R)	Under left side of dash. See Fig. 2.
Dash Fuse Block (6.5L VIN F & S)	Under left side of dash. See Fig. 3.
Dash Fuse Block (7.4L VIN J)	Under left side of dash. See Fig. 4.
Fuse A & B	On right side of radiator support.
Mega Fuse Block	On right front of engine compartment.
Underhood Fuse/Relay Center (4.3L VIN W)	On left rear of engine compartment. See Fig. 1.
Underhood Fuse/Relay Center (5.0L VIN M & 5.7L VIN R)	On left rear of engine compartment. See Fig. 2.
Underhood Fuse/Relay Center (6.5L VIN F & S)	On left rear of engine compartment.
Underhood Fuse/Relay Center (7.4L VIN J)	On left rear of engine compartment. See Fig. 4.

Chevrolet Suburban C2500 1998 - CONTROL UNITS

Chevrolet Suburban C2500 1998 CONTROL UNITS

Component	Component Location
Accelerator Pedal Position Module (6.5L VIN F & S)	Part of accelerator pedal.
Air Bag Driver Inflator Module	At top of steering column.
Audio Alarm Module	On convenience center.
Automatic Transfer Case Control Module	Behind left side of dash.
Auxiliary Heater & A/C Control Switch Module (Front)	In front of overhead console.
Auxiliary Heater & A/C Control Switch Module (Rear)	In rear of overhead console molding, in headliner.
Auxiliary Heater & A/C Logic Module	In rear of overhead console molding, in headliner.
Cruise Control Module	In left rear of engine compartment, on firewall.
Daytime Running Lamp (DRL) Module	Behind left side of dash, taped to panel wiring harness.
Door Lock Control Module	In front of left rear wheelhouse.
Electronic Brake Control Module (EBCM)	On left side of engine compartment.
Electronic Variable Orifice (EVO)/ Passlock Control Module	Under center of dash.
Fuel Pump Balance Module	Inside left side frame rail.
Fuel Solenoid Driver (6.5L VIN F & S)	On injection pump, on top front of engine. See Fig. 3.
Glow Plug Control Module (6.5L VIN F & S)	On left rear of intake manifold.
Heated Seat Module	Under each respective power seat.
Ignition Control Module (4.3L VIN W)	On right side, rear of engine. See Fig. 1.
Ignition Control Module (5.0L VIN M & 5.7L VIN R)	On right side, rear of engine. See Fig. 2.
Ignition Control Module (7.4L VIN J)	On right side, rear of engine. See Fig. 4.
Inflatable Restraint Sensing and Diagnostic Module	Under driver's seat carpet.
Interior Lamp Control Module	Under center of dash.
Low Coolant Level Indicator Module (6.5L VIN F & S)	Behind center of dash.
Powertrain Control Module (PCM) (6.5L VIN F & S)	Behind right side of dash, near blower motor. See Fig. 3.
Remote Control Door Lock Receiver	Behind center of dash.
Transfer Case Control Module (TCCM)	Under dash, on steering column support bracket.
Vehicle Control Module (VCM) (4.3L VIN W)	On left side of engine compartment. See Fig. 1.
Vehicle Control Module (VCM) (5.0L VIN M & 5.7L VIN R)	On left side of engine compartment. See Fig. 2.
Vehicle Control Module (VCM) (7.4L VIN J)	On left side of engine compartment. See Fig. 4.
Wiper Motor Module (Front)	On firewall, behind wiper motor.
Wiper Motor Module (Rear)	On lower inner center of rear window.

Chevrolet Suburban C2500 1998 - MOTORS

Chevrolet Suburban C2500 1998 MOTORS

Component	Component Location
Air Injection Reaction (Secondary) Pump (5.0L VIN M & 5.7L VIN R)	On front of engine.
Air Injection Reaction (Secondary) Pump (7.4L VIN J)	On front of engine.
Air Injection Reaction Pump (7.4L VIN J)	On front of engine. See Fig. 4.
Auxiliary Blower Motor (Rear)	Behind right rear wheelwell.
Auxiliary Cooling Fan Motor	In front of radiator.
Balance Fuel Pump (Dual Tanks Only)	On inside left frame rail, near front of rear tank.
Blower Motor (Front)	Under right side of dash.
Electronic Fuel Injection Pump (6.5L VIN F & S)	On top front of engine.
Fuel Lift Pump (6.5L VIN F & S)	Inside left frame rail, below driver's door.
Idle Air Control (IAC) Valve (4.3L VIN W)	Attached to right rear of throttle body. See Fig. 1.
Idle Air Control (IAC) Valve (5.0L VIN M & 5.7L VIN R)	Attached to right rear of throttle body. See Fig. 2.
Idle Air Control (IAC) Valve (7.4L VIN J)	Attached to right rear of throttle body. See Fig. 4.
Injection Timing Stepper Motor (6.5L VIN F & S)	On top right front of engine. See Fig. 3.
Mode Door Motor	On front & rear (if equipped) A/C-heater housing.
Recirculation Door Motor	On A/C-heater housing.
Temperature Door Motor	On front & rear (if equipped) A/C-heater housing.
Transfer Case Encoder Motor	On right side of transfer case.
Windshield Washer Pumps (Front & Rear)	In washer fluid reservoir, near left shock tower.

Chevrolet Suburban C2500 1998 - SENDING UNITS & SENSORS

Chevrolet Suburban C2500 1998 SENDING UNITS & SENSORS

Component	Component Location
Camshaft Position (CMP) Sensor (4.3L VIN W)	Inside distributor. See Fig. 1.
Camshaft Position (CMP) Sensor (5.0L VIN M & 5.7L VIN R)	Inside distributor. See Fig. 2.
Camshaft Position (CMP) Sensor (7.4L VIN J)	Inside distributor. See Fig. 4.
Crankshaft Position (CKP) Sensor (4.3L VIN W)	On bottom front of engine, near crank pulley. See Fig. 1.
Crankshaft Position (CKP) Sensor (5.0L VIN M & 5.7L VIN R)	On bottom front of engine, near crank pulley. See Fig. 2.
Crankshaft Position (CKP) Sensor (6.5L VIN F & S)	On bottom front of engine, near crank pulley. See Fig. 3.
Crankshaft Position (CKP) Sensor (7.4L VIN J)	On bottom front of engine, near crank pulley. See Fig. 4.
EGR Control Pressure/Baro Sensor (6.5L VIN F & S)	On upper left side of cowl, next to wiper motor. See .
Engine Coolant Temperature Sender	On left cylinder head, near No. 1 spark plug.
Engine Coolant Temperature (ECT) Sensor (4.3L VIN W)	On top right front of engine, near thermostat housing. See Fig. 1.
Engine Coolant Temperature (ECT) Sensor (5.0L VIN M & 5.7L VIN R)	On top right front of engine, near thermostat housing. See Fig. 2.
Engine Coolant Temperature (ECT) Sensor (6.5L VIN F & S)	On top right front of engine, near thermostat housing. See Fig. 3.
Engine Coolant Temperature (ECT) Sensor (7.4L VIN J)	On top right front of engine, near thermostat housing. See Fig. 4.
Fuel Pump and Sender	In fuel tank.
Fuel Tank Pressure Sensor	Located in fuel tank.
Heated Oxygen Sensors (HO2S) (4.3L VIN W) (4)	In exhaust pipe, in front & back of catalytic converters. See Fig. 1.
Heated Oxygen Sensors (HO2S) (5.0L VIN M & 5.7L VIN R) (4)	In exhaust pipe, in front & back of catalytic converters. See Fig. 2.
Heated Oxygen Sensors (HO2S) (7.4L VIN J) (4)	In exhaust pipe, in front & back of catalytic converters. See Fig. 4.
Inflatable Restraint Front End Discriminating Sensor	Under front outside center of radiator.
Intake Air Temperature (IAT) Sensor (4.3L VIN W)	In air intake duct. See Fig. 1.
Intake Air Temperature (IAT) Sensor (5.0L VIN M & 5.7L VIN R)	In air intake duct. See Fig. 2.
Intake Air Temperature (IAT) Sensor (6.5L VIN F & S)	On top of engine, near intake manifold opening. See Fig. 3.
Intake Air Temperature (IAT) Sensor (7.4L VIN J)	In air intake duct. See Fig. 4.
Knock Sensor (KS) (4.3L VIN W)	On rear of engine block. See Fig. 1.
Knock Sensor (KS) (5.0L VIN M & 5.7L VIN R)	On right side of engine block, below exhaust manifold, forward of starter. See Fig. 2.
Knock Sensor (KS) (7.4L VIN J)	On right side of engine, rear of engine mount. See Fig. 4.
Low Coolant Level Sensor (6.5L VIN F & S)	In coolant reservoir, right side of engine compartment.
Manifold Absolute Pressure (MAP) Sensor (4.3L VIN W)	On top right of engine, near fuel injectors. See Fig. 1.
Manifold Absolute Pressure (MAP) Sensor (5.0L VIN M & 5.7L VIN R)	On top right of engine, near fuel injectors. See Fig. 2.
Manifold Absolute Pressure (MAP) Sensor (6.5L VIN F & S)	On top middle of radiator support.
Manifold Absolute Pressure (MAP) Sensor (7.4L VIN J)	On top right of engine, near fuel injectors. See Fig. 4.
Mass Air Flow (MAF) Sensor (4.3L VIN W)	In air intake duct. See Fig. 1.
Mass Air Flow (MAF) Sensor (5.0L VIN M & 5.7L VIN R)	In air intake duct. See Fig. 2.
Mass Air Flow (MAF) Sensor (7.4L VIN J)	In air intake duct. See Fig. 4.
Optical/Fuel Temperature Sensor	On fuel injection pump.
Steering Handwheel Speed Sensor	On steering column, near firewall.
Throttle Position (TP) Sensor (4.3L VIN W)	On throttle body assembly. See Fig. 1.
Throttle Position (TP) Sensor (5.0L VIN M & 5.7L VIN R)	On throttle body assembly. See Fig. 2.
Throttle Position (TP) Sensor (7.4L VIN J)	On throttle body assembly. See Fig. 4.
Timed Temperature Sensor (6.5L VIN F & S)	On top of intake manifold.
Transmission Input Speed Sensor (4.3L VIN W)	On left front of transmission. See Fig. 1.
Transmission Input Speed Sensor (5.0L VIN M & 5.7L VIN R)	On left front of transmission. See Fig. 2.
Transmission Input Speed Sensor (7.4L VIN J)	On left front of transmission. See Fig. 4.
Turbo Pressure Sensor (6.5L VIN F & S)	On top of intake manifold.
Vehicle Speed Sensor (VSS) (4.3L VIN W)	On left side of transmission, left side of transfer case W/4WD. See Fig. 1.
Vehicle Speed Sensor (VSS) (5.0L VIN M & 5.7L VIN R)	On left side of transmission, left side of transfer case W/4WD. See Fig. 2.
Vehicle Speed Sensor (VSS) (7.4L VIN J)	On left side of transmission, left side of transfer case W/4WD. See Fig. 4.
Water-In-Fuel Sensor (6.5L VIN F & S)	On top center rear of engine.
Wheel Speed Sensors (Front) (2) (4.3L VIN W)	On left & right front wheel hub assembly. See Fig. 1.
Wheel Speed Sensors (Front) (2) (5.0L VIN M & 5.7L VIN R)	On left & right front wheel hub assembly. See Fig. 2.
Wheel Speed Sensors (Front) (2) (7.4L VIN J)	On left & right front wheel hub assembly. See Fig. 4.

Chevrolet Suburban C2500 1998 - SOLENOIDS & SOLENOID VALVES

Chevrolet Suburban C2500 1998 SOLENOIDS & SOLENOID VALVES

Component	Component Location
Brake Pressure Modulator Valve (BPMV) (4.3L VIN W)	Near brake master cylinder, at left front wheelhouse. See Fig. 1.
Brake Pressure Modulator Valve (BPMV) (5.0L VIN M & 5.7L VIN R)	Near brake master cylinder, at left front wheelhouse. See Fig. 2.
Brake Pressure Modulator Valve (BPMV) (7.4L VIN J)	Near brake master cylinder, at left front wheelhouse. See Fig. 4.
Brake/Transmission Shift Interlock (BTSI) Solenoid	Right side of steering column, under support bracket.
Engine Shutoff Solenoid (6.5L VIN F & S)	On left front of engine. See Fig. 3.
Evaporative Emissions (EVAP) Canister Purge Solenoid (4.3L VIN W)	On top right side of engine. See Fig. 1.
Evaporative Emissions (EVAP) Canister Purge Solenoid (5.0L VIN M & 5.7L VIN R)	On top right side of engine. See Fig. 2.
Evaporative Emissions (EVAP) Canister Purge Solenoid (7.4L VIN J)	On right side of engine. See Fig. 4.
Evaporative Emissions (EVAP) Canister Vent (4.3L VIN W)	On left side of engine compartment.
Evaporative Emissions (EVAP) Canister Vent (5.0L VIN M & 5.7L VIN R)	On left side of engine compartment.
Evaporative Emissions (EVAP) Canister Vent (7.4L VIN J)	On left side of engine compartment.
Exhaust Gas Recirculation (EGR) Solenoid (6.5L VIN F & S)	On top left rear of engine. See Fig. 3.
Exhaust Gas Recirculation (EGR) Valve Solenoid (4.3L VIN W)	On top front of engine, near thermostat housing. See Fig. 1.
Exhaust Gas Recirculation (EGR) Valve Solenoid (5.0L VIN M & 5.7L VIN R)	On front of engine, near thermostat housing. See Fig. 2.
Exhaust Gas Recirculation (EGR) Valve Solenoid (7.4L VIN J)	On front of engine, near thermostat housing. See Fig. 4.
Exhaust Gas Recirculation (EGR) Vent Solenoid (6.5L VIN F & S)	On top left rear of engine. See Fig. 3.
Front Axle Actuator	On right rear of front drive axle.
Fuel Solenoid (6.5L VIN F & S)	On injection pump, on top front of engine. See Fig. 3.
Steering Assist Control Solenoid	Part of power steering pump.
Wastegate Solenoid (6.5L VIN F & S)	On top left rear of engine.

Chevrolet Suburban C2500 1998 - SWITCHES

Chevrolet Suburban C2500 1998 SWITCHES

Component	Component Location
A/C Compressor Clutch Cycling Switch (4.3L VIN W)	In low pressure refrigerant line, on accumulator. See Fig. 1.
A/C Compressor Clutch Cycling Switch (5.0L VIN M & 5.7L VIN R)	In low pressure refrigerant line, on accumulator. See Fig. 2.
A/C Compressor Clutch Cycling Switch (7.4L VIN J)	In low pressure refrigerant line, on accumulator. See Fig. 4.
A/C High Pressure Cutout Switch (4.3L VIN W)	On bottom rear of A/C compressor. See Fig. 1.
A/C High Pressure Cutout Switch (5.0L VIN M & 5.7L VIN R)	On bottom rear of A/C compressor. See Fig. 2.
A/C High Pressure Cutout Switch (7.4L VIN J)	On bottom rear of A/C compressor. See Fig. 4.
A/C Low Pressure Cutout Switch	On top rear of A/C compressor.
Back-Up Lamp Switch (M/T)	On left side of transmission.
Brake Pressure Warning Switch	On rear of brake pressure modulator valve (BPMV) casting.
Clutch Pedal Position Switch	On top of clutch pedal bracket.
Engine Coolant Temperature Switch	On top right front of engine, near thermostat housing.
Evaporative Emission (EVAP) Purge Solenoid Vacuum Switch (4.3L VIN W)	On top of engine. See Fig. 1.
Evaporative Emission (EVAP) Purge Solenoid Vacuum Switch (5.0L VIN M & 5.7L VIN R)	On top of engine. See Fig. 2.
Evaporative Emission (EVAP) Purge Solenoid Vacuum Switch (7.4L VIN J)	On top of engine. See Fig. 4.
Front Axle Switch	On right rear of front drive axle.
Fuel Pump/Oil Pressure Switch (4.3L VIN W)	On top left rear of engine, near distributor. See Fig. 1.
Fuel Pump/Oil Pressure Switch (5.0L VIN M & 5.7L VIN R)	On top left rear of engine, near distributor. See Fig. 2.
Fuel Pump/Oil Pressure Switch (6.5L VIN F & S)	Under intake manifold center of engine.
Fuel Pump/Oil Pressure Switch (7.4L VIN J)	On top left rear of engine, near distributor. See Fig. 4.
Park Brake Warning Switch	On parking brake pedal bracket.
Park/Neutral Position Switch	On left side, center of transmission.
Seat Belt Switch	On driver's seat belt buckle.
TCC/Stop Lamp Switch	On top of brake pedal.
Transfer Case Switch	On left, top of transfer case.
Transmission Range Switch	On left side of transmission.

Chevrolet Suburban C2500 1998 - MISCELLANEOUS

Chevrolet Suburban C2500 1998 MISCELLANEOUS

Component	Component Location
Air Injection Reaction (Secondary) Clutch (5.0L VIN M & 5.7L VIN R)	On front of pump.
Air Injection Reaction (Secondary) Clutch (7.4L VIN J)	On front of pump.
Auxiliary Battery	On left front of engine compartment.
Auxiliary Blower Resistor	On top of auxiliary HVAC plenum.
Auxiliary Power Stud	On fan shroud, between battery & fan.
Blower Motor Resistor	On blower motor housing.
Data Link Connector (DLC) (4.3L VIN W)	Under left side of dash, left of steering column. See Fig. 1.
Data Link Connector (DLC) (5.0L VIN M & 5.7L VIN R)	Under left side of dash, left of steering column. See Fig. 2.
Data Link Connector (DLC) (6.5L VIN F & S)	Under left side of dash, left of steering column. See Fig. 3.
Data Link Connector (DLC) (7.4L VIN J)	Under left side of dash, left of steering column. See Fig. 4.
Distributor (4.3L VIN W)	Top rear of engine. See Fig. 1.
Distributor (5.0L VIN M & 5.7L VIN R)	Top rear of engine. See Fig. 2.
Distributor (7.4L VIN J)	Top rear of engine. See Fig. 4.
Fuel Heater (6.5L VIN F & S)	On top rear of engine.
Fuel Injectors (4.3L VIN W) (6)	Top of engine, in intake manifold. See Fig. 1.
Fuel Injectors (5.0L VIN M & 5.7L VIN R)	Top of engine, in intake manifold. See Fig. 2.
Fuel Injectors (7.4L VIN J)	Top of engine, in intake manifold. See Fig. 4.
Fuel Pump Prime Connector (4.3L VIN W)	On left rear of engine compartment. See Fig. 1.
Fuel Pump Prime Connector (5.0L VIN M & 5.7L VIN R)	On left rear of engine compartment. See Fig. 2.
Fuel Pump Prime Connector (6.5L VIN F & S)	On left side of engine compartment.
Fuel Pump Prime Connector (7.4L VIN J)	On left rear of engine compartment. See Fig. 4.
Ignition Coil (4.3L VIN W)	On top right rear of engine. See Fig. 1.
Ignition Coil (5.0L VIN M & 5.7L VIN R)	On top left rear of engine. See Fig. 2.
Ignition Coil (7.4L VIN J)	On top left rear of engine. See Fig. 4.
Power Amplifier	Under left side of dash, right of brake pedal bracket.
Vehicle Speed Sensor Buffer	Behind right side of dash.

Chevrolet Suburban C2500 1998 - CONNECTORS

Chevrolet Suburban C2500 1998 CONNECTORS

Component	Component Location
C100 (Light Gray, 36 Pin)	In left rear side of engine compartment.
C103 (Gray, 4 Pin)	In left rear side of engine compartment.
C105	At rear of intake manifold.
C107 (Black, 7 Pin)	On left front of transmission.
C109 (Gray, 4 Pin)	Near C100.
C110 (Yellow, 2 Pin)	Near C102.
C112 (Black, 8 Pin)	At center rear of engine.
C116 (Black, 3 Pin)	In left rear of vehicle.
C120 (Black, 4 Pin)	Near transmission.
C131 (Black, 7 Pin)	I/P harness.
C200 (Black, 32 Pin)	Near heater motor.
C203 (Black, 2 Pin)	Near heater motor.
C205 (Black, 2 Pin)	At convenience center.
C206 (Black, 6 Pin)	At lower left "A" pillar.
C207 (Black, 8 Pin)	At lower left "A" pillar.
C208	At lower left "A" pillar.
C209 (Black, 8 Pin)	At lower left "A" pillar.
C210 (Gray, 6 Pin)	At convenience center.
C211 (Black, 2 Pin)	Under left front seat.
C212 (Black, 4 Pin)	Under left front seat.
C213 (Black, 8 Pin)	On lower right "A" pillar.
C215 (Blue, 8 Pin)	At lower right "A" pillar.
C216 (Natural, 2 Pin)	At lower right "A" pillar.
C227 (Black, 6 Pin)	I/P harness.
C228 (Black, 2 Pin)	Under right front seat.
C229 (Black, 6 Pin)	Under right front seat.
C230	Above HVAC evaporator housing.
C232 (Yellow, 4 Pin)	Behind right side of dash.
C235 (Black, 4 Pin)	Near P100.
C236 (Natural, 4 Pin)	In left front seat harness.
C237 (Natural, 4 Pin)	In right front seat harness.
C238 (Black, 2 Pin)	In-line to roof harness.
C239	Near heater motor.
C240	Power seat harness.
C243 (Black, 8 Pin)	In cross-car harness.
C245 (Gray, 2 Pin)	Near EVO/Passlock breakout.
C266 (Black, 48 Pin)	At left side of steering column.
C267	In right front seat harness.
C271 (Blue, 10 Pin)	IP harness.
C272 (Gray, 1 Pin)	In-line to spotlamps.
C280	At convenience center.
C298 (White, 16 Pin)	Behind left side of dash.
C299 (Blue, 10 Pin)	Above HVAC evaporator housing.
C300 (Blue, 8 Pin)	In overhead console.
C301 (Natural, 10 Pin)	At left front kick panel.
C302 (Light Green, 6 Pin)	At left front kick panel.
C307 (Natural, 3 Pin)	In-line to overhead console harness.
C310	Right heated seat harness.
C311	Left heated seat harness.
C400 (Black, 2 Pin)	Above auxiliary blower motor.
C401 (Gray, 6 Pin)	Above auxiliary blower motor.
C402 (Black, 4 Pin)	At center rear of vehicle.
C404	Near liftgate release motor.
C405	At right "D" pillar.
C406 (Black, 2 Pin)	At right "D" pillar.
C408	Below center rear edge of bed.
C411 (Black, 8 Pin)	In-line to rear cargo lamp harness.
C496 (Gray, 6 Pin)	In right side "B" pillar.
C498 (Gray, 6 Pin)	In left "B" pillar.

Chevrolet Suburban C2500 1998 - GROUNDS

Chevrolet Suburban C2500 1998 GROUNDS

Component	Component Location
G101	At right front of engine compartment.
G102 (4.3L VIN W)	On lower right front of engine block.
G102 (5.0L VIN M)	On lower right front of engine block.
G102 (5.7L VIN R)	On lower right front of engine block.
G102 (6.5L VIN F)	On left front of intake manifold.
G102 (6.5L VIN S)	On left front of intake manifold.
G102 (7.4L VIN J)	On lower right front of engine block.
G103	Near thermostat housing.
G104 (4.3L VIN W)	Near thermostat housing.
G104 (5.0L VIN M)	Near thermostat housing.
G104 (5.7L VIN R)	Near thermostat housing.
G104 (6.5L VIN F)	On rear of right cylinder head.
G104 (6.5L VIN S)	On rear of right cylinder head.
G104 (7.4L VIN J)	Near thermostat housing.
G105 (4.3L VIN W)	On lower right front of engine block.
G105 (5.0L VIN M)	On lower right front of engine block.
G105 (5.7L VIN R)	On lower right front of engine block.
G105 (6.5L VIN F)	On rear of right cylinder head.
G105 (6.5L VIN S)	On rear of right cylinder head.
G105 (7.4L VIN J)	On lower right front of engine block.
G108	Top center of firewall.
G110	Below heater lines.
G111	On right rear of engine.
G113	Near left headlight.
G115	On frame rail.
G200	On tie bar.
G201	On tie bar.
G202	On HVAC plenum bracket.
G300	On right "C" pillar.
G400	On right "B" pillar.
G401	Behind bumper.
G404	Near rear crossmember.

Chevrolet Suburban C2500 1998 - SPLICES

Chevrolet Suburban C2500 1998 SPLICES

Component	Component Location
S101	Engine harness, near EBCM.
S104 (5.0L - A/T, 5.7L M/T)	Engine Harness, approx. 12 cm into fuel injector breakout
S108 (Gas)	Engine harness, 12 cm from ignition coil breakout, toward starter solenoid.
S112	Engine jumper harness, 9 cm from oil pressure sensor.
S113	Engine harness, 19 cm from EBCM.
S115	Engine jumper harness, 5 cm from oil pressure sensor.
S123	Forward lamps harness, 23 cm from left park light breakout.
S128	Forward lamps harness, 5 cm from right headlight.
S129	Engine jumper harness, 43 cm from oil pressure sensor.
S146	Engine harness, 22 cm into underhood fuse relay center.
S149	Oxygen sensor harness, 7 cm from right bank oxygen sensor.
S151	Engine harness, 7 cm inside EBCM.
S154	Left bank fuel injector harness.
S155	Right bank fuel injector harness.
S158	In washer pump jumper harness.
S161	Engine harness, 8 cm from EGR valve.
S162 (4.3L, 5.0L & 5.7L)	Engine harness, 17 cm from starter solenoid breakout, toward left hand oxygen sensor breakout.
S162 (7.4L)	Engine harness, 15 cm from right hand bank oxygen sensor breakout, toward starter solenoid breakout.
S168	Battery harness, 25 cm from C121.
S185	At diode D104.
S186	At diode D104.
S192	4WD indicator harness, 10 cm from ABS harness.
S200	I/P harness, 10 cm from steering column.
S201	I/P harness, 8 cm from steering column harness.
S204	I/P harness, 10 cm from C100.
S205	I/P harness, 12 cm from steering column harness.
S206	I/P harness, 6 cm from steering column harness.
S207	I/P harness, 12 cm from steering column harness.
S212	I/P harness, 8 cm from inflatable restraint switch.
S213	I/P harness, 4 cm from steering column harness.
S215	I/P harness, 8 cm from instrument cluster.
S217	I/P harness, 16 cm from instrument cluster.
S218	I/P harness, 16 cm from inflatable restraint switch.
S233	Cross-car harness, 25 cm from left power seat harness.
S235	I/P harness, 4 cm from steering column harness.
S236	I/P harness, 10 cm into steering column harness.
S237	Right front seat harness, 4 cm from power seat lumbar switch.
S238	Cross-car harness, 26 cm into left seat harness.
S242	I/P harness, 12 cm from inflatable restraint switch.
S243	HVAC harness, 4 cm from recirculation door.
S244	HVAC harness, 8 cm from recirculation door.
S248	Cross-car harness, 35 cm before left front door harness.
S251	Cross-car harness, 13 cm from left front door.
S254	Cross-car harness, 12 cm from C210.
S255	Cross-car harness, 20 cm from C210.
S259	Cross-car harness, 7 cm into seat belt switch.
S264	I/P harness, 4 cm from instrument cluster.
S266	Cross-car harness, 8 cm from C210.
S268	I/P harness, 7 cm into HVAC control switch.
S272	I/P harness, 4 cm from auxiliary power outlet.
S281	Cross-car harness, 70 cm from right heated seat.
S283	Spotlamp extension harness, 35 cm from C272.
S288	Auxiliary power harness.
S289	Auxiliary power harness.
S290	I/P harness, 8 cm before radio harness.
S292	I/P harness, 22 cm before radio harness.
S298	I/P harness, 24 cm from instrument cluster.
S299	I/P harness, 4 cm into steering column harness.
S300	Lumbar seat harness.
S302	Selectable 4WD harness, 10 cm from transfer case relay.
S303	Power lumbar seat jumper, 20 cm from right power seat.
S304	Rear HVAC control harness, 31 cm from auxiliary HVAC control logic module.
S307	Rear HVAC control harness, 10 cm from auxiliary HVAC control logic module.
S308	Rear HVAC control harness, 5 cm from auxiliary HVAC control logic module.
S312	Illuminated vanity mirror jumper harness, 4 cm from inside rear view mirror.
S315	Taillamp extension harness, 40 cm from fuel pump balance module.
S316	Illuminated vanity mirror jumper harness, 8 cm toward left illuminated vanity mirror.
S317	Taillamp extension harness, 10 cm from fuel pump & sender breakout.
S318	Taillamp extension harness, 10 cm from fuel pump balance module.
S319	Taillamp extension harness, 7 cm from fuel pump & sender breakout.
S324	Taillamp extension harness, 10 cm from G404.
S330	Floor console harness, 13 cm from left heated seat switch.
S331	Floor console harness, 22 cm from left heated seat switch.
S332	Floor console harness, 28 cm from left heated seat switch.
S335	Floor console harness, 5 cm from C304.
S336	Floor console harness, 5 cm from cross-car incline connector harness.
S400	Auxiliary A/C harness, 17 cm from blower motor relays.
S403	Auxiliary HVAC harness, 7 cm from blower motor resistor.
S416	License lamps harness, 4 cm from taillamp harness.
S419	Front-to-rear body harness, 13 cm from CHMSL.
S424	Front-to-rear body harness, 13 cm from CHMSL.
S443	In overhead console harness.
S500	Inside left door harness, 8 cm from tweeter speaker.
S501	Inside left door harness.