Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2014EXPRESS 2500 BASE, VAN CARGO, 6.6L ENG VIN LREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - Q1B 2-3 TO X88
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN L
Wiring Systems And Power Management - Component Connector End Views - Q1B 2-3 To X88
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Wiring Systems And Power Management - Component Connector End Views - Q1B 2-3 To X88
- Component Connector End Views
- Notes
- Q1B 2-3 Shift Solenoid Valve
- Q2 A/C Compressor Clutch
- Q2 A/C Compressor Clutch (C60 and Diesel)
- Q20 Intake Air Flow Valve (LGH)
- Q38 Throttle Body (LC8, LMF, LU3, L20 or L96)
- Q41 Turbocharger Vane Position Control Solenoid Valve (LGH)
- Q53 Fuel Cut-Off Solenoid Valve (KO7 with UFM)
- Q6 Camshaft Position Actuator Solenoid Valve (LC8 or L96)
- Q61 Reductant Injector (LGH)
- Q62 Reductant Purge Solenoid Valve (LGH)
- Q67 Exhaust After treatment Fuel Injector (LGH)
- Q68A CNG Cut-Off Solenoid Valve 1
- Q68B CNG Cut-Off Solenoid Valve 2
- Q68C CNG Cut-Off Solenoid Valve 3
- Q68D CNG Cut-Off Solenoid Valve 4
- Q68E CNG Cut-Off Solenoid Valve 5
- Q69 CNG High Pressure Regulator Solenoid Valve
- Q7 Fuel Injector Fuel Meter Body X1-X6 (LU3)
- Q7 Fuel Injector Fuel Meter Body X7 (LU3)
- Q72 LPG Bypass Solenoid Valve (KO7 with UFM)
- Q8 Control Solenoid Valve Assembly
- R3 Blower Motor Resistor
- R3 Blower Motor Resistor (Diesel)
- R3B Blower Motor Resistor - Auxiliary
- S13A Door Lock Switch - Rear Cargo (Passenger or Cargo with AU3)
- S13D Door Lock Switch - Driver (AU3)
- S13P Door Lock Switch - Passenger (AU3)
- S13P Door Lock Switch - Passenger X2
- S30 Headlamp Switch
- S33 Horn Switch X1
- S33 Horn Switch X2
- S34 HVAC Controls Switch Assembly X1
- S34 HVAC Controls Switch Assembly X2
- S34 HVAC Controls Switch Assembly X3
- S34 HVAC Controls Switch Assembly X4 (C60)
- S34B HVAC Controls Switch Assembly - Auxiliary (C69 with Rear Auxiliary Controls)
- S34F HVAC Controls Switch Assembly - Auxiliary Front (C69 with Rear Auxiliary Controls)
- S34F HVAC Controls Switch Assembly - Auxiliary Front (C69 without Rear Auxiliary Controls)
- S34R HVAC Controls Switch Assembly - Auxiliary Rear (C69 with Rear Auxiliary Controls)
- S39 Ignition Switch
- S40 Passenger Air Bag Disable Switch (C99)
- S51 Telematics Button Assembly (UE1)
- S52 Outside Rearview Mirror Switch (DE5 or DE7)
- S64D Seat Adjuster Switch - Driver (AG1)
- S64P Seat Adjuster Switch - Passenger (AG2)
- S70L Steering Wheel Controls Switch - Left (K34)
- S70R Steering Wheel Controls Switch - Right (W1Y)
- S74 Tow/Haul Mode Switch
- S75 Traction Control Switch (JL4)
- S78 Turn Signal/Multifunction Switch X1
- S78 Turn Signal/Multifunction Switch X2
- S78 Turn Signal/Multifunction Switch X3
- S79D Window Switch - Driver (A31)
- S79P Window Switch - Passenger (A31)
- S85 Auxiliary Blower Motor Switch
- T8A Ignition Coil 1 (LC8, LMF, L20 or L96)
- T8B Ignition Coil 2 (LC8, LMF, L20 or L96)
- T8C Ignition Coil 3 (LC8, LMF, L20 or L96)
- T8D Ignition Coil 4 (LC8, LMF, L20 or L96)
- T8E Ignition Coil 5 (LC8, LMF, L20 or L96)
- T8F Ignition Coil 6 (LC8, LMF, L20 or L96)
- T8G Ignition Coil 7 (LC8, LMF, L20 or L96)
- T8H Ignition Coil 8 (LC8, LMF, L20 or L96)
- X80B Accessory Power Receptacle - Center Console 2
- X84 Data Link Connector
- X85 Steering Wheel Air Bag Coil X1
- X85 Steering Wheel Air Bag Coil X2
- X87LB Sliding Door Jamb Contact Plate - Left Body (E26 with AU3)
- X87RB Sliding Door Jamb Contact Plate - Right Body (Passenger or Cargo with AU3)
- X88 Trailer Connector (UY7)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.