Chevrolet Chevy Express G3500 2009 - 2009 GENERAL MOTORS Express & Savana

Chevrolet Chevy Express G3500 2009 - BUZZERS, RELAYS & TIMERS

Chevrolet Chevy Express G3500 2009 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Access Panel Relay - Left Side Front	In rear fuse block. See Fig. 3.
Access Panel Relay - Left Side Rear	In rear fuse block. See Fig. 3.
Access Panel Relay - Right Side	In rear fuse block. See Fig. 3.
A/C Relay (54)	In underhood fuse block. See Fig. 1.
AUX Relay (24)	In body fuse block. See Fig. 2.
Blower Motor High Speed Relay - Auxiliary	Left rear of passenger compartment, attached to HVAC module.
Blower Motor Low Speed Relay - Auxiliary	Left rear of passenger compartment, attached to auxiliary HVAC module.
Blower Motor Medium Speed Relay - Auxiliary	Left rear of passenger compartment, attached to auxiliary HVAC module.
CARGO UNLCK Relay (27)	In body fuse block. See Fig. 2.
Chime Module	Behind left center of dash. See Fig. 87.
Cooling Fan Relay	Right of cooling fan assembly. See Fig. 92.
CTSY LAMP Relay (26)	In body fuse block. See Fig. 2.
Dome Fluorescent Work Laps Relay (16)	At left "B" pillar. See Fig. 16.
DR/LCKS Relay (30)	In body fuse block. See Fig. 2.
DRV UNLCK Relay (28)	In body fuse block. See Fig. 2.
ECM (D) Relay	In underhood fuse block. See Fig. 1.
FUEL PMP Relay (57)	In underhood fuse block. See Fig. 1.
High Speed Blower Motor Relay Connector - Auxiliary (9)	On left rear of passenger compartment, on auxiliary HVAC assembly. See Fig. 68.
HORN Relay (59)	In underhood fuse block. See Fig. 1.
LAMP - HI BEAM Relay (56)	In underhood fuse block. See Fig. 1.
LAMP - LO BEAM Relay (58)	In underhood fuse block. See Fig. 1.
Low Speed Blower Motor Relay Connector - Auxiliary (5)	On left rear of passenger compartment, on auxiliary HVAC assembly. See Fig. 68.
Medium Speed Blower Motor Relay - Auxiliary (2)	On left rear of passenger compartment, on auxiliary HVAC assembly. See Fig. 68.
PARK LAMP Relay (29)	In body fuse block. See Fig. 2.
PASS UNLCK Relay (31)	In body fuse block. See Fig. 2.
RAP Relay (23)	In body fuse block. See Fig. 2.
REAR DEFOG Relay (25)	In body fuse block. See Fig. 2.
REAR FOG LAMPS Relay (Diesel) (55)	In underhood fuse block. See Fig. 1.
SPARE (G) Relay	In underhood fuse block. See Fig. 1.
SPARE Relay (55)	In underhood fuse block. See Fig. 1.
STRTR Relay	In underhood fuse block. See Fig. 1.
Trailer Left Stop/Turn Relay (11)	On left outer frame rail, near center of vehicle. See Fig. 11.
Trailer Right Stop/Turn Relay (10)	On left outer frame rail, near center of vehicle. See Fig. 11.
WIND RAP	In body fuse block. See Fig. 2.
WSW Relay (53)	In underhood fuse block. See Fig. 1.

Chevrolet Chevy Express G3500 2009 - CIRCUIT PROTECTION DEVICES

Chevrolet Chevy Express G3500 2009 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Fuse Block - Body (13)	Under left front seat. See Fig. 16.
Fuse Block - Rear (17)	On left "B" pillar. See Fig. 16.
Fuse Block - Underhood	On left side of engine compartment. See Fig. 5.

Chevrolet Chevy Express G3500 2009 - CONTROL UNITS

Chevrolet Chevy Express G3500 2009 CONTROL UNITS LOCATION

Component	Location
Body Control Module (BCM)	Behind lower right side of dash. See Fig. 86.
Central Sequential Fuel Injection (Central SFI) Connector (4.3L) (1)	At top of engine. See Fig. 31.
Coolant Heater Control (1)	On coolant heater assembly. See Fig. 94.
Cruise Control Module (CCM)	Near brake fluid reservoir. See Fig. 53.
Electronic Brake Control Module (EBCM)	On left frame rail, near center of vehicle.
Electronic Control Module (ECM)	Left side of engine compartment. See Fig. 76.
Fuel Pump Flow Control Module (5.3L)	At rear of vehicle, attached to left rear frame rail.
Glow Plug Control Module (GPCM) (6.6L) (5)	Left rear of engine. See Fig. 80.
HVAC Control Processor - Auxiliary	Center front of headliner. See Fig. 96.
Ignition Coil/Module 1 Connector (4.8L, 5.3L & 6.0L) (13)	At top left of engine. See Fig. 36.
Ignition Coil/Module 2 Connector (4.8L, 5.3L & 6.0L) (5)	At top right of engine. See Fig. 37.
Ignition Coil/Module 3 Connector (4.8L, 5.3L & 6.0L) (11)	At top left of engine. See Fig. 36.
Ignition Coil/Module 4 Connector (4.8L, 5.3L & 6.0L) (6)	At top right of engine. See Fig. 37.
Ignition Coil/Module 5 Connector (4.8L, 5.3L & 6.0L) (9)	At top left of engine. See Fig. 36.
Ignition Coil/Module 6 Connector (4.8L, 5.3L & 6.0L) (7)	At top right of engine. See Fig. 37.
Ignition Coil/Module 7 Connector (4.8L, 5.3L & 6.0L) (8)	At top left of engine. See Fig. 36.
Ignition Coil/Module 8 Connector (4.8L, 5.3L & 6.0L) (9)	At top right of engine. See Fig. 37.
Ignition Control Module (ICM) Connector (3)	On top right side of engine, at ignition coil. See Fig. 31.
Inflatable Restraint I/P Module	Behind right side of dash. See Fig. 50.
Inflatable Restraint I/P Module Connector (2)	Behind right side of dash. See Fig. 23.
Inflatable Restraint Roof Rail Module - Left Front	Left side of headliner.
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Under left front seat. See Fig. 6.
Inflatable Restraint Sensing & Diagnostic Module (SDM) Connector (13)	Under left front seat. See Fig. 12.
Intake Air Heater (IAH) Module (13)	Between the intake manifold tube and the air cooler outlet duct. See Fig. 80.
Powertrain Control Module (PCM) (3)	In engine compartment, on left inner fender. See Fig. 33.
Theft Deterrent Module (TDM)	In steering column, near ignition key cylinder housing.
Throttle Actuator Control (TAC) Module	At left rear of engine compartment. See Fig. 41.
Transmission Control Module (TCM) (6.6L)	Left front corner of engine compartment. See Fig. 77.
Turn Signal/Hazard Flasher Module	Behind left center of dash. See Fig. 87.
Vehicle Communication Interface Module (VCIM) (8)	Below steering column. See Fig. 22.

Chevrolet Chevy Express G3500 2009 - MOTORS

Chevrolet Chevy Express G3500 2009 MOTORS LOCATION

Component	Location
Access Panel Actuators - Left Front Side Front (25)	Behind left front access panel. See Fig. 16.
Access Panel Actuators - Left Front Side Rear (24)	Behind left front access panel. See Fig. 16.
Access Panel Actuators - Left Rear Side Front (23)	Behind left rear access panel. See Fig. 16.
Access Panel Actuators - Left Rear Side Rear (22)	Behind left rear access panel. See Fig. 16.
Access Panel Actuators - Right Side Front (8)	Behind right front access panel. See Fig. 16.
Access Panel Actuators - Right Side Rear (9)	Behind right rear access panel. See Fig. 16.
Air Temperature Actuator	Behind right side of dash, on HVAC. See Fig. 95.
Air Temperature Actuator Connector - Auxiliary (Rear A/C) (5)	On auxiliary HVAC assembly. See Fig. 97.
Air Temperature Actuator Connector (6)	Behind right side of dash, on HVAC assembly. See Fig. 23.
Blower Motor	On right rear of engine compartment, on evaporator case. See Fig. 21.
Blower Motor Connector - Auxiliary (4)	On auxiliary HVAC. See Fig. 97.
Blower Motor (Coolant Heater) (7)	On coolant heater assembly. See Fig. 94.
Cooling Fan Assembly	Behind radiator. See Fig. 92.
Fuel Pump (Coolant Heater) (6)	On coolant heater assembly. See Fig. 94.
Fuel Pump & Sender Assembly Connector (57 Gal Fuel Tank)	At fuel tank. See Fig. 88.
Fuel Pump & Sender Assembly (Gas)/Fuel Level Sensor (Diesel) Connector	On fuel tank. See Fig. 35.
Fuel Pump (6.6L)	Left center inner frame rail. See Fig. 82.
Precharge Pump	At left front of frame rail. See Fig. 28.
Recirculation Actuator	Behind right side of dash, on HVAC. See Fig. 95.
Seat Motor - Forward/Rearward (7)	Under right front seat. See Fig. 51.
Seat Motor - Forward/Rearward (8)	Under left front seat. See Fig. 49.
Seat Motor - Front Tilt (6)	Under right front seat. See Fig. 51.
Seat Motor - Front Tilt (9)	Under left front seat. See Fig. 49.
Seat Motor - Rear Tilt (5)	Under right front seat. See Fig. 51.
Seat Motor - Rear Tilt (10)	Under left front seat. See Fig. 49.
Seat Motors Connector - Driver (6)	Under left front seat. See Fig. 49.
Seat Motors Connector - Front Passenger (8)	Under right front seat. See Fig. 51.
Starter (4.8L, 5.3L & 6.0L)	At right rear of engine. See Fig. 20.
Starter (6.6L)	Lower right side of engine. See Fig. 78.
Vacuum Pump	Right front of engine compartment, under battery. See Fig. 81.
Window Motor Connector - Driver (4)	In driver door. See Fig. 55.
Window Motor Connector - Front Passenger (1)	In front passenger door. See Fig. 56.
Windshield Washer Fluid Pump	On left front of engine compartment, at washer reservoir. See Fig. 66.
Windshield Wiper Motor	On left side of firewall. See Fig. 53.

Chevrolet Chevy Express G3500 2009 - SENDING UNITS & SENSORS

Chevrolet Chevy Express G3500 2009 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Position (APP) Sensor	Under left side of dash. See Fig. 42.
Air Temperature Sensor (Coolant) (3)	On coolant heater assembly. See Fig. 94.
Air Temperature Sensor (Overheat) (5)	On coolant heater assembly. See Fig. 94.
Ambient Air Temperature Sensor	Behind front grille, on radiator support. See Fig. 65.
Ambient Light Sensor	On top of instrument panel.
Automatic Transmission (AT) Input Shaft Speed Sensor (ISS) Assembly	On left side of transmission. See Fig. 48.
Automatic Transmission (AT) Output Shaft Speed Sensor (OSS) Assembly	At left rear of transmission. See Fig. 48.
Automatic Transmission Fluid Temperature (TFT) Sensor	Internal to transmission. See Fig. 48.
Camshaft Position (CMP) Sensor Connector (4.3L)	Part of distributor, top rear of engine. See Fig. 9.
Camshaft Position (CMP) Sensor Connector (4.8L, 5.3L & 6.0L)	Front of engine, between water pump and crank pulley.
Camshaft Position (CMP) Sensor (6.6L)	On front of engine. See Fig. 78.
Combustion Sensor (4)	On coolant heater assembly. See Fig. 94.
Crankshaft Position (CKP) Sensor Connector (4.3L)	On lower front of engine, near crankshaft. See Fig. 18.
Crankshaft Position (CKP) Sensor Connector (4.8L, 5.3L & 6.0L)	On lower right rear of engine, near starter motor. See Fig. 20.
Crankshaft Position (CKP) Sensor (6.6L)	Next to crankshaft pulley. See Fig. 78.
DPF Differential Pressure Sensor	On right frame rail. See Fig. 91.
Engine Coolant Temperature (ECT) Sensor Connector (4.3L)	On left side of engine. See Fig. 19.
Engine Coolant Temperature (ECT) Sensor Connector (4.8L, 5.3L & 6.0L) (12)	At left front of engine. See Fig. 36.
Engine Coolant Temperature (ECT) Sensor (6.6L) (12)	Top of engine, near thermostat housing. See Fig. 80.
Engine Oil Pressure (EOP) Sensor Connector (4.3L)	On top rear of engine. See Fig. 9.
Engine Oil Pressure (EOP) Sensor Connector (4.8L, 5.3L & 6.0L)	On top rear of engine. See Fig. 10.
Engine Oil Pressure (EOP) Sensor (6.6L)	Lower left side of engine. See Fig. 79.
Exhaust Gas Temperature (EGT) Sensor - 1	In exhaust, upstream of particulate filter. See Fig. 91.
Exhaust Gas Temperature (EGT) Sensor - 2	In exhaust, downstream of particulate filter. See Fig. 91.
Exhaust Pressure Differential Sensor (6.6L)	Attached to upper frame, near diesel oxidizing converter.
Fuel Level Sensor Connector	On left frame rail. See Fig. 82.
Fuel Pump & Sender Assembly (Gas)/Fuel Level Sensor (Diesel) Connector	On fuel tank. See Fig. 35.
Fuel Rail Pressure (FRP) Sensor (6.6L) (2)	On top right side of engine. See Fig. 80.
Fuel Rail Temperature (FRT) Sensor (6)	On top left side of engine. See Fig. 80.
Fuel Tank Pressure (FTP) Sensor Connector (Gas) (Except 57 Gal Fuel Tank)	On fuel tank. See Fig. 35.
Fuel Tank Pressure (FTP) Sensor Connector (57 Gal Fuel Tank)	At fuel tank. See Fig. 88.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector (4.3L)	In exhaust pipe, in front of catalytic converter. See Fig. 9.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector (4.8L & 6.0L) (5)	In exhaust pipe, in front of catalytic converter. See Fig. 43.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (4.3L & 5.3L)	In exhaust pipe, in front of catalytic converter. See Fig. 34.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Connector (4.8L & 6.0L) (3)	In exhaust pipe, in back of catalytic converter. See Fig. 43.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (4.3L & 5.3L)	In exhaust pipe, in back of catalytic converter. See Fig. 34.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 Connector (4.8L & 6.0L) (2)	In exhaust pipe, in front of catalytic converter. See Fig. 43.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (4.3L & 5.3L)	In exhaust pipe, in front of catalytic converter. See Fig. 34.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Connector (4.8L & 6.0L) (4)	In exhaust pipe, in back of catalytic converter. See Fig. 43.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (4.3L & 5.3L)	In exhaust pipe, in back of catalytic converter. See Fig. 34.
Inflatable Restraint Front End Sensor	On lower center of radiator support. See Fig. 50.
Inflatable Restraint Front Passenger Presence System (PPS) Sensor	On passenger's seat harness, near breakout for seat adjuster switch.
Inflatable Restraint Seat Position Sensor (SPS) Connector - Left (Light Duty) (2)	In left front seat. See Fig. 49.
Inflatable Restraint Seat Position Sensor (SPS) Connector - Right (Light Duty) (2)	In right front seat. See Fig. 51.
Inflatable Restraint Seat Position Sensor (SPS) - Left (Light Duty) (11)	In left seat. See Fig. 49.
Inflatable Restraint Seat Position Sensor (SPS) - Right (Light Duty) (4)	Under right front seat. See Fig. 51.
Inflatable Restraint Side Impact Sensor (SIS) - Left Front	In left front side door.
Inflatable Restraint Side Impact Sensor (SIS) - Left Rear	Left center of vehicle behind body panel trim.
Inflatable Restraint Side Impact Sensor (SIS) - Right Front	In right front side door.
Inflatable Restraint Side Impact Sensor (SIS) - Right Rear	In lower right side of vehicle, near rear side door.
Inflatable Restraint Vehicle Rollover Sensor	Front center floor board, between front seats.
Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor	Integral with mass airflow sensor. See Fig. 21.
Intake Air Temperature (IAT) Sensor 2 (6.6L) (7)	At front of turbocharger. See Fig. 80.
Knock Sensor (KS) Connector	On top left rear of engine. See Fig. 9.
Knock Sensor (KS) 1 (4.3L)	Left side of engine block, near motor mount.
Knock Sensor (KS) 1 (4.8L, 5.3L & 6.0L)	Below front of intake manifold. See Fig. 39.
Knock Sensor (KS) 2 (4.3L)	Right side of engine block, near motor mount.
Knock Sensor (KS) 2 (4.8L, 5.3L & 6.0L)	Below rear of intake manifold. See Fig. 39.
Manifold Absolute Pressure (MAP) Sensor Connector (4.8L, 5.3L & 6.0L) (1)	At top rear of engine, on intake manifold. See Fig. 38.
Manifold Absolute Pressure (MAP) Sensor (6.6L) (14)	Attached to intake manifold tube. See Fig. 80.
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor	Attached to air intake duct. See Fig. 76.
Passlock Sensor	Inside top of steering column. See Fig. 98.
Steering Wheel Speed/Position Sensor	At base of steering column. See Fig. 29.
Throttle Position (TP) Sensor Connector (4.3L) (3)	At throttle position (TP) sensor. See Fig. 32.
Throttle Position (TP) Sensor (4.8L, 5.3L & 6.0L)	On left side of throttle body. See Fig. 67.
Tire Pressure Sensor (Left Front)	Inside rim, part of left front tire valve stem.
Tire Pressure Sensor (Left Rear)	Inside rim, part of left rear tire valve stem.
Tire Pressure Sensor (Right Front)	Inside rim, part of right front tire valve stem.
Tire Pressure Sensor (Right Rear)	Inside rim, part of right rear tire valve stem.
Turbocharger Vane Position Sensor (4)	On top of turbocharger. See Fig. 80.
Vehicle Speed Sensor (VSS) (4L60-E/4L65-E/4L70-E)	On right side of transmission. See Fig. 45.
VSS Sensor (4L60-E/4L65-E/4L70-E)	At left rear of transfer case. See Fig. 46.
Wheel Speed Sensor (WSS) Connector - LF	On inside of left front wheel. See Fig. 85.
Wheel Speed Sensor (WSS) Connector - RF	On inside of right front wheel. See Fig. 85.
Wheel Speed Sensor (WSS) - LR	At left rear wheel hub. See Fig. 85.
Wheel Speed Sensor (WSS) - RR	At right rear wheel hub. See Fig. 85.
Yaw & Lateral Acceleration Sensor	Under front passenger seat. See Fig. 85.

Chevrolet Chevy Express G3500 2009 - SOLENOIDS & SOLENOID VALVES

Chevrolet Chevy Express G3500 2009 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch Connector (4.3L)	At left front of engine. See Fig. 18.
A/C Compressor Clutch Connector (4.8L, 5.3L & 6.0L)	At lower right front of engine. See Fig. 20.
A/C Compressor Clutch Connector (6.6L)	Top front of engine. See Fig. 93.
A/T Shift Lock Control Solenoid Connector (3)	On right side of steering column, under support bracket. See Fig. 44.
Door Lock Actuator - LR Side	Rear of left door. See Fig. 61.
Door Lock Actuator - RR Side	Right side of door. See Fig. 63.
Door Lock Actuator - RR Side (Hinged)	At left side of right door. See Fig. 62.
Evaporative Emission (EVAP) Canister Purge Solenoid Connector (4.3L) (7)	On top of engine, near throttle body. See Fig. 31.
Evaporative Emission (EVAP) Canister Purge Solenoid Valve (4.8L, 5.3L & 6.0L) (5)	On top of engine, near throttle body. See Fig. 89.
Evaporative Emission (EVAP) Canister Vent Solenoid	Near front of fuel tank.
Evaporative Emission (EVAP) Canister Vent Solenoid Connector (6)	On EVAP canister, near front of fuel tank. See Fig. 11.
Exhaust Gas Recirculation (EGR) Valve (16)	Right side of the engine above the #1 cylinder. See Fig. 80.
Fuel Injector 1 Connector (4.8L, 5.3L & 6.0L) (1)	On left side of intake manifold. See Fig. 36.
Fuel Injector 1 (4.3L)	Inside intake manifold at cylinder #1.
Fuel Injector 1 (6.6L)	On right side of engine. See Fig. 78.
Fuel Injector 2 Connector (4.8L, 5.3L & 6.0L) (4)	On right side of intake manifold. See Fig. 37.
Fuel Injector 2 (4.3L)	Inside intake manifold at cylinder #2.
Fuel Injector 2 (6.6L)	On left side of engine. See Fig. 79.
Fuel Injector 3 Connector (4.8L, 5.3L & 6.0L) (2)	On left side of intake manifold. See Fig. 36.
Fuel Injector 3 (4.3L)	Inside intake manifold at cylinder #3.
Fuel Injector 3 (6.6L)	On right side of engine. See Fig. 78.
Fuel Injector 4 Connector (4.8L, 5.3L & 6.0L) (3)	On right side of intake manifold. See Fig. 37.
Fuel Injector 4 (4.3L)	Inside intake manifold at cylinder #4.
Fuel Injector 4 (6.6L)	On left side of engine. See Fig. 79.
Fuel Injector 5 Connector (4.8L, 5.3L & 6.0L) (3)	On left side of intake manifold. See Fig. 36.
Fuel Injector 5 (4.3L)	Inside intake manifold at cylinder #5.
Fuel Injector 5 (6.6L)	On right side of engine. See Fig. 78.
Fuel Injector 6 Connector (4.8L, 5.3L & 6.0L) (2)	On right side of intake manifold. See Fig. 37.
Fuel Injector 6 (4.3L)	Inside intake manifold at cylinder #6.
Fuel Injector 6 (6.6L)	On left side of engine. See Fig. 79.
Fuel Injector 7 Connector (4.8L, 5.3L & 6.0L) (7)	On left side of intake manifold. See Fig. 36.
Fuel Injector 7 (6.6L)	On right side of engine. See Fig. 78.
Fuel Injector 8 Connector (4.8L, 5.3L & 6.0L) (8)	On right side of intake manifold. See Fig. 37.
Fuel Injector 8 (6.6L)	On left side of engine. See Fig. 79.
Fuel Pressure Regulator (6.6L) (11)	Mounted to injection pump, near the thermostat housing. See Fig. 80.
Idle Air Control (IAC) Valve Connector (4.3L) (4)	At idle air control (IAC) valve. See Fig. 32.
Idle Air Control (IAC) Valve (4.8L, 5.3L & 6.0L)	On left side of throttle body. See Fig. 67.
Ignition Lock Cylinder Control Actuator	At top left of steering column. See Fig. 98.
Intake Air (IA) Flow Valve (8)	Top front of engine. See Fig. 90.
Intake Air Valve	Attached to left side of intake housing.
Pressure Control (PC) Solenoid Valve Assembly (4L80-E/4L85-E)	Internal to transmission. See Fig. 48.
Pressure Control (PC) Solenoid Valve (4L60-E/4L65-E/4L70-E)	Internal to transmission. See Fig. 45.
Starter Solenoid	On lower right side of engine. See Fig. 78.
TCC PWM Solenoid Valve	On automatic transmission control valve body. See Fig. 47.
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly (4L80-E/4L85-E)	Internal to transmission. See Fig. 48.
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve (4L60-E/4L65-E/4L70-E)	Internal to transmission. See Fig. 45.
Torque Converter Clutch (TCC) Solenoid Valve	Internal to transmission. See Fig. 45.
Turbocharger Vane Position Control Solenoid Valve (3)	At right side of turbocharger. See Fig. 80.
1-2 Shift Solenoid (SS) Valve Assembly (4L80-E/4L85-E)	Internal to transmission. See Fig. 48.
1-2 Shift Solenoid (SS) Valve (4L60-E/4L65-E/4L70-E)	Internal to transmission. See Fig. 45.
2-3 Shift Solenoid (SS) Valve Assembly (4L80-E/4L85-E)	Internal to transmission. See Fig. 48.
2-3 Shift Solenoid (SS) Valve (4L60-E/4L65-E/4L70-E)	Internal to transmission. See Fig. 45.

Chevrolet Chevy Express G3500 2009 - SWITCHES

Chevrolet Chevy Express G3500 2009 SWITCHES LOCATION

Component	Location
A/C High Pressure Switch Connector (4.3L)	On rear portion of A/C compressor. See Fig. 19.
A/C High Pressure Switch Connector (4.8L, 5.3L & 6.0L)	On rear portion of A/C compressor. See Fig. 20.
A/C High Pressure Switch (6.6L)	On rear of A/C compressor. See Fig. 93.
A/C Low Pressure Switch	On side of accumulator. See Fig. 21.
Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch (4L60-E/4L65-E/4L70-E)	Internal to transmission. See Fig. 45.
Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch (4L80-E/4L85-E)	Internal to transmission. See Fig. 48.
Brake Booster Fluid Flow Alarm Switch	In power steering pump outlet hose.
Brake Booster Fluid Pressure Alarm Switch	In power steering pump inlet hose.
Brake Fluid Level Switch Connector (Heavy Duty) (8)	At left rear of engine compartment. See Fig. 40.
Brake Fluid Level Switch Connector (2)	On brake master cylinder reservoir. See Fig. 25.
Brake Pressure Differential Switch Connector (Light Duty) (5)	On brake valve, near front of EBCM. See Fig. 11.
Coolant Level Switch	Bottom of surge tank. See Fig. 92.
Door Ajar Switch Connector - LR (18)	At base of left "B" pillar. See Fig. 14.
Door Ajar Switch - RR (Passenger/Cargo) (6)	At right "B" pillar. See Fig. 30.
Door Jam Switch - LR Side	At left "B" pillar. See Fig. 61.
Door Jam Switch - RR Side (Hinged)	At right "B" pillar. See Fig. 62.
Door Jam Switch - RR Side (Sliding)	At right "B" pillar. See Fig. 63.
Door Latch Assembly - Cargo (3)	In right rear cargo door. See Fig. 106.
Door Latch Assembly - Driver	At rear of driver door. See Fig. 59.
Door Latch Assembly - Passenger	At rear of front passenger door. See Fig. 60.
Engine Coolant Level Switch (6.6L)	Right front of engine compartment, attached to bottom of coolant surge tank.
Engine Oil Level Switch	On left side of oil pan. See Fig. 79.
Engine Oil Level Switch Connector (4.8L, 5.3L & 6.0L)	On right side of oil pan. See Fig. 20.
Horn Switch	In steering wheel. See Fig. 98.
Ignition Key Alarm Switch	Inside top of steering column. See Fig. 98.
Park Brake Switch Connector (1)	Under left side of dash. See Fig. 27.
Park/Neutral Position (PNP) Switch (4L60-E)	Internal to transmission.
Park/Neutral Position (PNP) Switch (4L80-E)	On left side of transmission.
Power Brake (PB) Booster Fluid Pressure Alarm Switch Connector (1)	Near power brake booster, in booster inlet hose. See Fig. 26.
Seat Belt Switch - LF (1)	In left front seat belt latch. See Fig. 49.
Stop Lamp Switch Connector (3)	Behind left side of dash, above brake pedal. See Fig. 58.

Chevrolet Chevy Express G3500 2009 - MISCELLANEOUS

Chevrolet Chevy Express G3500 2009 MISCELLANEOUS LOCATION

Component	Location
Antenna	At right rear of engine compartment. See Fig. 54.
Auxiliary Power Outlet Connector (1)	Behind right side of dash. See Fig. 23.
Backup Alarm	Rear of vehicle on frame.
Battery	At right front of engine compartment. See Fig. 4.
Battery Cable (+)	At battery. See Fig. 4.
Battery Cable (-)	At battery. See Fig. 4.
Battery - Secondary	On left frame rail. See Fig. 82.
Blower Motor Resistor Assembly	At right rear of engine compartment, on evaporator case. See Fig. 21.
Blower Motor Resistor Assembly Connector - Auxiliary (1)	On auxiliary heater motor. See Fig. 97.
Coolant Heater - Fuel Pump (6.6L)	Attached to the left inner frame rail, near the fuel pump assembly. See Fig. 82.
Coolant Heater (6.6L)	Attached to the left front inner frame rail. See Fig. 82.
Data Link Connector (DLC) (2)	Under left side of dash. See Fig. 58.
Door Contact Plate - Left Side	At left "B" pillar. See Fig. 61.
Door Contact Plate - Right Side (Hinged)	At right "B" pillar. See Fig. 62.
Door Contact Plate - Right Side (Sliding)	At right "B" pillar. See Fig. 63.
Generator - Auxiliary	Top left front of engine. See Fig. 93.
Generator (4.3L)	At top right front of engine. See Fig. 18.
Generator (4.8L, 5.3L & 6.0L)	At top left front of engine. See Fig. 67.
Generator (6.6L)	Top right front of engine. See Fig. 93.
Glow Plug (Coolant Heater) (2)	On coolant heater assembly. See Fig. 94.
Glow Plug 1	On right side of engine. See Fig. 78.
Glow Plug 2	On left side of engine. See Fig. 79.
Glow Plug 3	On right side of engine. See Fig. 78.
Glow Plug 4	On left side of engine. See Fig. 79.
Glow Plug 5	On right side of engine. See Fig. 78.
Glow Plug 6	On left side of engine. See Fig. 79.
Glow Plug 7	On right side of engine. See Fig. 78.
Glow Plug 8	On left side of engine. See Fig. 79.
Horn Assembly	At left front of engine compartment. See Fig. 64.
Horn Assembly Connector (6)	At left rear of engine compartment. See Fig. 33.
Horn Assembly (School Bus)	At left front of engine compartment. See Fig. 64.
Ignition Coil Connector (6)	On top right side of engine. See Fig. 31.
Inflatable Restraint Steering Wheel Module	In steering wheel. See Fig. 98.
Inflatable Restraint Steering Wheel Module Coil	At top of steering column. See Fig. 50.
Intake Air Heater	Between intake manifold tube and air cooler outlet duct.
Navigation Antenna Connector (2)	At center front of roof. See Fig. 52.
Outside Rearview Mirror Connector - Driver (1)	In driver door. See Fig. 55.
Outside Rearview Mirror Connector - Passenger (3)	In right front passenger door. See Fig. 56.
Remote Control Door Lock Receiver (RCDLR) Connector (5)	Behind center of dash. See Fig. 22.
Seat Belt Pretension Connector - LF (Light Duty) (9)	On right side of left front seat. See Fig. 12.
Seat Belt Pretensioner - RF (Light Duty) (2)	On right side of right front seat. See Fig. 30.
Splice Block (JX200) (7)	In dash wiring harness, 10 cm from underhood pass-through grommet breakout. See Fig. 12.
Splice Block (JX250) (8)	In dash harness, 20 cm (7.86 in) from underhood pass-through grommet. See Fig. 12.
Splice Block (JX347) (14)	In body harness, attached to lower left "B" pillar. See Fig. 14.
Splice Block (JX348)	In body harness, attached to lower right "B" pillar, part of G348.
Sunshade (Left)	On upper left of headliner.
Sunshade (Right)	On upper right of headliner.

Chevrolet Chevy Express G3500 2009 - CONNECTORS

Chevrolet Chevy Express G3500 2009 CONNECTORS LOCATION

Component	Location
X100 (Diesel W/Active Brake Control) (Black, 30 Pin) (2)	At left rear of engine compartment, near underhood fuse block. See Fig. 84.
X100 (Gas W/O Active Brake Control) (Black, 16 Pin) (7)	At left rear of engine compartment, near underhood fuse block. See Fig. 33.
X101 (Diesel W/Active Brake Control) Black, 30 Pin) (2)	At left rear of engine compartment, near underhood fuse block. See Fig. 84.
X101 (Gas W/O Active Brake Control) (Black, 16 Pin) (15)	At left rear of engine compartment, near underhood fuse block. See Fig. 11.
X103 (Black, 2 Pin) (5)	Near top center of engine. See Fig. 36.
X104 (Heavy Duty) (Black, 2 Pin) (2)	Near left side of radiator support. See Fig. 71.
X104 (Light Duty) (Yellow, 2 Pin) (2)	Near left side of radiator support. See Fig. 71.
X105 (Black, 10 Pin) (9)	Right front inner frame rail. See Fig. 84.
X107 (6.6L) (Black, 38 Pin) (10)	Left front of engine compartment. See Fig. 80.
X108 (6.6L) (Black, 24 Pin) (15)	Front right side of engine. See Fig. 80.
X109 (Gray, 2 Pin) (1)	At left rear of engine compartment. See Fig. 25.
X110 (Black, 6 Pin) (9)	Top left side of engine. See Fig. 80.
X111 (6.6L) (Green, 6 Pin) (8)	Top left side of engine. See Fig. 80.
X112 (Black, 4 Pin) (1)	Rear right side of engine. See Fig. 80.
X114 (Black, 10 Pin) (13)	On left outer frame rail. See Fig. 83.
X115 (Black, 8 Pin) (1)	Right side of engine. See Fig. 100.
X126 (Gray, 7 Pin) (10)	On top of left valve cover. See Fig. 36.
X127 (Gray, 7 Pin) (8)	On top of right valve cover. See Fig. 37.
X128 (Black, 8 Pin) (1)	Rear oxygen sensor harness, near right frame rail. See Fig. 43.
X141 (Gray, 2 Pin) (2)	At left rear of engine compartment, near firewall. See Fig. 26.
X142 (Black, 5 Pin)	In engine harness to fan jumper harness, at right frame rail.
X150 (Black, 2 Pin)	In instrument panel harness to forward lamp harness, near upper radiator hose at radiator entry point.
X174 (Black, 30 Pin) (8)	On left frame rail near fuel pump. See Fig. 83.
X175 (4L60-E/4L65-E/4L70-E) (Gray, 20 Pin) (2)	On right side of transmission. See Fig. 69.
X175 (4L80-E/4L85-E) (Gray, 20 Pin) (4)	On left side of transmission. See Fig. 70.
X176 (Black, 3 Pin)	In engine harness to crankshaft harness, right front side of engine, near crank pulley.
X177 (Black, 3 Pin) (4.8L & 5.3L)	In engine harness to camshaft harness, left front of engine, near crank pulley.
X177 (Black, 5 Pin) (6.0L)	In engine harness to camshaft harness, left front of engine, near crank pulley.
X200 (Black, 48 Pin) (7)	At base of steering column. See Fig. 22.
X203 (RV Upfitter Option) (Black, 2 Pin) (6)	Near top of right "B" pillar. See Fig. 14.
X205 (Black, 16 Pin)	In front headliner harness to body harness, behind "A" pillar.
X220 (Gray, 2 Pin) (2)	Behind left side of dash, above parking brake. See Fig. 27.
X221 (Gray, 4 Pin) (1)	Behind left side of dash, above brake pedal. See Fig. 58.
X222 (Black, 4 Pin) (6)	Behind left side of dash, near parking brake. See Fig. 12.
X225 (Black, 12 Pin) (1)	Behind right kick panel. See Fig. 13.
X275 (Heavy Duty) (Yellow, 2 Pin) (6)	At base of steering column. See Fig. 102.
X275 (Light Duty) (Yellow, 4 Pin) (6)	At base of steering column. See Fig. 102.
X276 (Yellow, 4 Pin)	Back of left instrument panel knee bolster, above X200.
X300 (Yellow, 2 Pin) (10)	Near body fuse block. See Fig. 12.
X303 (Black, 8 Pin) (7)	Near top of left "B" pillar. See Fig. 14.
X304 (Black, 12 Pin) (1)	Near top of left "B" pillar. See Fig. 72.
X305 (Gray, 3 Pin) (6)	Under vehicle, on left frame rail. See Fig. 99.
X306 (Heavy Duty) (Black, 2 Pin) (3)	Below right front seat. See Fig. 30.
X306 (Light Duty) (Black, 12 Pin) (3)	Below right front seat. See Fig. 30.
X307 (Heavy Duty) (Black, 4 Pin) (3)	Below left front seat. See Fig. 49.
X307 (Light Duty) (Black, 6 Pin) (3)	Below left front seat. See Fig. 49.
X311 (Black, 40 Pin) (5)	Behind left kick panel. See Fig. 12.
X312 (Black, 18 Pin) (3)	Behind right kick panel. See Fig. 13.
X314 (Black, 10 Pin) (10)	Under vehicle, on left frame rail. See Fig. 99.
X316 (Black, 6 Pin) (3)	In front of fuel pump on frame rail. See Fig. 83.
X318 (Gray, 40 Pin) (1)	Behind left kick panel. See Fig. 12.
X319 (Black, 8 Pin) (3)	Behind left kick panel. See Fig. 74.
X320 (Black, 16 Pin) (2)	Near base of left "C" pillar. See Fig. 75.
X321 (Black, 4 Pin) (1)	Near center of left "C" pillar. See Fig. 75.
X324 (Black, 2 Pin)	Passenger side rear impact sensor harness to body harness, at bottom of right "B" pillar.
X330 (Yellow, 4 Pin)	In instrument panel harness to body harness, under driver's seat.
X331 (Yellow, 4 Pin)	In instrument panel harness to body harness, under driver's seat.
X400 (Black, 10 Pin) (13)	Near center of right "D" pillar. See Fig. 15.
X401 (Black, 6 Pin) (9)	Center of left "D" pillar. See Fig. 15.
X402 (Black, 6 Pin) (15)	Center of right "D" pillar. See Fig. 15.
X405 (Black, 10 Pin) (5)	Chassis harness to cutaway rear lighting connector, near left rear frame rail. See Fig. 17.
X406 (Black, 2 Pin) (1)	Under vehicle, on left frame rail. See Fig. 17.
X407 (Auxiliary Heater Provisions) (Gray, 6 Pin) (9)	Near auxiliary HVAC assembly. See Fig. 14.
X407 (Auxiliary Heater & Rear A/C) (Gray, 6 Pin) (3)	On rear auxiliary HVAC. See Fig. 68.
X409 (Auxiliary Heater & Rear A/C) (Black, 2 Pin) (4)	Near auxiliary HVAC assembly. See Fig. 68.
X409 (135 Wheel Base - Auxiliary Heater/Rear A/C) (Black, 2 Pin) (12)	At left rear corner of vehicle. See Fig. 15.
X411 (Black, 6 Pin) (10)	Near center of left "D" pillar. See Fig. 15.
X412 (Black, 3 Pin) (14)	Near center of right "D" pillar. See Fig. 15.
X413 (Black, 2 Pin) (1)	At left rear frame rail. See Fig. 73.
X414 (Black, 2 Pin) (2)	At right rear frame rail. See Fig. 73.
X415 (Black, 4 Pin) (3)	At rear of vehicle, on center of rear roof rail. See Fig. 15.
X417 (Black, 2 Pin) (1)	Near top of left "C" pillar. See Fig. 104.
X419 (Black, 2 Pin) (4)	At rear of vehicle, on center of rear roof rail. See Fig. 15.
X420 (Black, 12 Pin) (2)	Near top of right "B" pillar. See Fig. 72.
X500 (Black, 40 Pin)	In driver door harness to body harness, top right of "D" pillar.
X501 (Gray, 2 Pin)	Driver side impact sensor harness to driver door harness, behind driver's door trim panel.
X600 (Gray, 22 Pin)	In passenger door harness to body harness, behind right kick panel.
X601 (Black, 2 Pin)	In passenger side impact sensor harness to body harness, behind right kick panel.
X901 (Gray, 2 Pin) (1)	In left rear cargo door. See Fig. 105.
X902 (Gray, 2 Pin) (1)	In right rear cargo door. See Fig. 106.

Chevrolet Chevy Express G3500 2009 - GROUNDS

Chevrolet Chevy Express G3500 2009 GROUNDS LOCATION

Component	Location
G100 (2)	On left front of engine compartment. See Fig. 7.
G101 (9)	On right front of engine compartment. See Fig. 7.
G102 (4.3L)	On left rear of engine. See Fig. 9.
G102 (4.8L, 5.3L & 6.0L)	On left rear of engine. See Fig. 10.
G102 (6.6L) (17)	Left front lower side of the engine block. See Fig. 84.
G103 (4.3L)	On right rear of engine. See Fig. 9.
G103 (4.8L, 5.3L & 6.0L)	On right rear of engine. See Fig. 10.
G103 (6.6L) (18)	Left front lower side of the engine block. See Fig. 84.
G104 (1)	On lower right front of engine. See Fig. 8.
G105 (2)	On right front frame rail, in engine compartment. See Fig. 8.
G106	On right front of engine compartment. See Fig. 4.
G107 (16)	Left front lower side of the engine block. See Fig. 84.
G108 (10)	Right front lower side of the engine block. See Fig. 84.
G300 (13)	On left frame rail, near EBCM. See Fig. 11.
G301 (2)	Behind left kick panel. See Fig. 12.
G302 (3)	Behind left kick panel. See Fig. 12.
G303 (4)	Behind left kick panel. See Fig. 12.
G304 (2)	Behind right kick panel. See Fig. 13.
G305	Left center outer frame rail, near the secondary battery. See Fig. 82.
G347 (20)	On bottom of left "B" pillar. See Fig. 14.
G348	Right side of passenger compartment, lower right of "B" pillar.
G400 (3)	On inner left rear frame rail. See Fig. 17.
G401 (1)	On top of right "D" pillar. See Fig. 15.
G402 (8)	On top of left "D" pillar. See Fig. 15.
G403 (21)	On center of left "D" pillar. See Fig. 16.

Chevrolet Chevy Express G3500 2009 - SPLICES

Chevrolet Chevy Express G3500 2009 SPLICES LOCATION

Component	Location
J101 (4.3L) (1)	In engine harness, 43 cm from underhood lamp breakout. See Fig. 32.
J101 (4.8L, 5.3L & 6.0L) (4)	In engine harness, 4 cm from knock sensor breakout. See Fig. 36.
J101 (6.6L) (19)	In the engine chassis harness, 10 cm from the ECM breakout. See Fig. 84.
J102 (4.3L) (5)	In engine harness, 6 cm from generator connector breakout. See Fig. 31.
J102 (4.8L, 5.3L & 6.0L) (6)	In engine harness, 8 cm from knock sensor breakout. See Fig. 36.
J102 (6.6L) (15)	In the engine chassis harness, 5 cm from the MAF sensor breakout. See Fig. 84.
J103 (12)	In the engine chassis harness, 10 cm from the underhood lamp breakout. See Fig. 84.
J107	In engine harness, between X110 & X111.
J108	In engine harness, between CKP sensor connector & CMP connector.
J110 (5)	In forward lamp harness, 12 cm from left headlight connector breakout. See Fig. 7.
J111	In engine harness, between #1 & #4 fuel injectors & X107.
J112	In engine harness, between #2 & #5 fuel injectors & X108.
J113	In engine harness, between #6 & #7 fuel injectors & X107.
J114	In engine harness, between #3 & #8 fuel injectors & X108.
J115	In engine harness, 15 cm from X101 breakout.
J118 (6)	In forward lamp harness, 13 cm from right headlight connector breakout. See Fig. 7.
J119	In chassis harness, 15 cm from coolant heater breakout.
J120	In engine harness, 5 cm from X101 breakout.
J121	In forward lamp harness, 48 cm from left headlamp breakout.
J122	In forward lamp harness, 12 cm from underhood fuse block X1 breakout.
J123	In engine harness, 16 cm from underhood fuse block X1 breakout.
J135	Inside transmission.
J182	In odd ignition/coil module jumper harness, on top left side of engine.
J183	In even ignition/coil module jumper harness, on top right side of engine.
J184	In odd ignition/coil module jumper harness, on top left side of engine.
J185	In even ignition/coil module jumper harness, on top right side of engine.
J187	In odd ignition/coil module jumper harness, on top left side of engine.
J188	In even ignition/coil module jumper harness, on top right side of engine.
J202	In steering column harness, 25 cm from X200 connector.
J203	In steering column harness, 27 cm from X200 connector.
J204	In vanity mirror lamp harness, 13 cm from X203.
J205	In steering column harness, 30 cm from X200 connector.
J206 (11)	In dash harness, 30 cm from radio breakout. See Fig. 101.
J207	In instrument panel harness, 70 cm from radio & HVAC control assembly.
J208	In steering wheel harness, near X200 connector.
J209	In steering wheel harness, near X200 connector.
J210	In steering wheel harness, near X200 connector.
J231	In instrument panel harness, 5 cm from X200 breakout towards instrument panel cluster.
J244	In instrument panel harness, 5 cm from X200 breakout towards instrument cluster panel.
J245 (3)	In dash harness, 13 cm from radio & HVAC control assembly breakout. See Fig. 22.
J246	In dash harness, 6 cm from radio & HVAC control assembly breakout.
J247	In dash harness, 36 cm from X200 breakout.
J248 (6)	In dash harness, 8 cm from X200 breakout. See Fig. 22.
J249 (3)	In dash harness, 5 cm from inflatable restraint I/P module connector breakout. See Fig. 23.
J250 (4)	In dash harness, 5 cm from air temperature actuator connector breakout. See Fig. 23.
J264	In steering column harness, 29 cm from X200.
J265	In instrument panel harness.
J300 (19)	In PRP/UF2 harness, 42 cm from left front side front access panel actuator. See Fig. 16.
J301 (Cutaway) (3)	In chassis harness, 87 cm from EBCM connector breakout. See Fig. 103.
J301 (Passenger/Cargo) (7)	In chassis harness, 44 cm from EBCM connector breakout. See Fig. 11.
J302 (14)	In PRP/UF2 harness, 15 cm from rear fuse block. See Fig. 16.
J303 (15)	In PRP/UF2 harness, 8 cm from rear fuse block. See Fig. 16.
J304	In driver seat harness, 10 cm from driver seat adjuster switch connector breakout. See Fig. 49.
J305 (Rear Auxiliary Controls W/RV Upfitter Option) (7)	In upfitter HVAC control harness, 39 cm from X303 breakout. See Fig. 24.
J305 (W/O RV Upfitter Option)	In front headliner harness, 31 cm from X304 breakout.
J306 (Rear Auxiliary Controls W/RV Upfitter Option) (8)	In upfitter HVAC control harness, 19 cm from X303 breakout. See Fig. 24.
J306 (W/O RV Upfitter Option)	In front headliner harness, 42 cm from X304 breakout.
J307	In front headliner harness, 15 cm from X205 breakout towards left vanity mirror lamp connector.
J307 (Rear Auxiliary Controls W/RV Upfitter Option) (5)	In upfitter HVAC control harness, 88 cm from X303 breakout. See Fig. 24.
J307 (W/O RV Upfitter Option)	In front headliner harness, 52 cm from X304 breakout.
J308 (W/O RV Upfitter Option) (4)	In body harness, 5 cm from X304 breakout. See Fig. 14.
J308 (W/RV Upfitter Option) (13)	In body harness, 22 cm from X308 breakout. See Fig. 14.
J309 (18)	In PRP/UF2 harness, between left side front access panel actuators. See Fig. 16.
J310 (W/O RV Upfitter Option) (3)	In body harness, 31 cm from X304 breakout. See Fig. 14.
J310 (W/RV Upfitter Option) (12)	In body harness, 32 cm from X308 breakout. See Fig. 14.
J311 (W/O RV Upfitter Option) (2)	In body harness, 41 cm from X304 breakout. See Fig. 14.
J311 (W/RV Upfitter Option) (14)	In body harness, 22 cm from X308 breakout. See Fig. 14.
J312	In PRP/UF2 harness, 7 cm from breakout for rear fuse block.
J313 (1)	In body harness, 11 cm from X307. See Fig. 74.
J314 (4)	In vanity mirror lamp harness, 34 cm from front courtesy & reading lamp connector breakout. See Fig. 72.
J315 (12)	In chassis harness, 10 cm from G300 breakout. See Fig. 11.
J316 (4)	In transmission harness, 20 cm from X174. See Fig. 83.
J317	In front passenger seat harness, 10 cm from X306.
J318	In body harness, 28 cm from underhood fuse block breakout.
J319	In chassis harness, 7 cm from ECBM breakout.
J320	In body harness, 28 cm from seat belt buckle driver X2 connector breakout.
J320	In body harness, 28 cm from seat belt buckle driver X2 connector breakout.
J321	In passenger seat harness, below passenger seat.
J322	In body harness, 40 cm from X306 breakout.
J323	In body harness, near front passenger seat, 20 cm from X306.
J330	In rear headliner harness, 30 cm from X420.
J331	In body harness, 15 cm from X306 breakout.
J332	In front headliner harness, 11 cm from right sunshade breakout.
J332 (3)	In front headliner harness, 5 cm from front courtesy/reading light breakout. See Fig. 72.
J333	In front headliner harness, 20 cm from right sunshade breakout.
J348 (4)	In PRP/UF2 harness, 19 cm from left front dome fluorescent work lamp connector. See Fig. 16.
J350 (3)	In PRP/UF2 harness, 12 cm from left front dome fluorescent work lamp connector. See Fig. 16.
J354 (Rear Auxiliary Controls W/RV Upfitter Option) (6)	In upfitter HVAC control harness, 64 cm from X303 breakout. See Fig. 24.
J354 (W/O RV Upfitter Option)	In front headliner harness, 11 cm from X304 breakout.
J355 (Rear Auxiliary Controls W/RV Upfitter Option) (4)	In upfitter HVAC control harness, 11 cm from auxiliary HVAC control processor connector breakout. See Fig. 24.
J355 (W/O RV Upfitter Option)	In front headliner harness, 21 cm from X304 breakout.
J356	In body harness, 20 cm from underhood fuse block breakout.
J401 (6)	In body harness, 16 cm from X419 breakout. See Fig. 15.
J402 (Cutaway) (2)	In chassis harness, 24 cm from G400 breakout. See Fig. 17.
J402 (Passenger/Cargo)	In chassis harness, 16 cm from G400 breakout.
J403 (16)	In body harness, 6 cm from G401 breakout. See Fig. 15.
J404 (7)	In body harness, 38 cm G402 breakout. See Fig. 15.
J405 (7)	In rear HVAC harness, 13 cm from auxiliary blower motor connector breakout. See Fig. 68.
J406	In front headliner harness, 24 cm from front courtesy & reading lamp connector.
J407	In rear headliner harness, 44 cm from X420.
J408 (20)	In PRP/UF2 harness, between left side rear access panel actuators. See Fig. 16.
J409 (10)	In PRP/UF2 harness, 88 cm from right dome fluorescent work lamp connector breakout. See Fig. 16.
J410	In body harness, 47 cm from X401 breakout.
J411 (8)	In rear HVAC harness, 6 cm from auxiliary blower motor connector breakout. See Fig. 68.
J412 (6)	In rear HVAC harness, 20 cm from auxiliary blower motor connector breakout. See Fig. 68.
J413 (6)	In rear HVAC harness, 24 cm from auxiliary blower motor breakout. See Fig. 97.
J450 (5)	In body harness, 10 cm from X419 breakout. See Fig. 15.
J451 (2)	In body harness, 10 cm from X415 breakout. See Fig. 15.
J452	In body harness, 46 cm from X417 breakout.
J453	In body harness, 52 cm from X417 breakout.
J500 (8)	In left front door harness, 6 cm from left front door speaker breakout. See Fig. 55.
J501	In left front door harness, 7 cm from left front door speaker breakout.
J502 (9)	In left front door harness, 16 cm from driver's outside rearview mirror connector. See Fig. 55.
J600 (4)	In right front door harness, 7 cm from right front door speaker breakout. See Fig. 56.
J601	In right front door harness, 5 cm from passenger outside rearview mirror breakout.
J901	In rear cargo door harness, 35 cm from X 902.
J902 (5)	In right rear door harness, 19 cm from license lamp connector breakout. See Fig. 57.
J903 (4)	In rear fog lamp harness, 22 cm from X406 breakout. See Fig. 17.
J904 (6)	In rear fog lamp harness, 12 cm from X406 breakout. See Fig. 17.