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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 DIAGNOSISENGINE MECHANICALSTARTERBATTERY, CHARGING SYSTEM AND STARTING SYSTEM
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN L
Battery, Charging System And Starting System
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Battery, Charging System And Starting System
- Specifications (Battery, Charging System And Starting System)
- Schematic Wiring Diagrams (Battery, Charging System And Starting System)
- Diagnostic Information And Procedures (Battery, Charging System And Starting System)
- Diagnostic Code Index (Battery, Charging System And Starting System)
- DTC B1425: Device 1 Voltage
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC B1439: Intermittent Device Voltage
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC B1516: Battery Current Sensor
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptors (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC B1517: Battery Voltage
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptors (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC B1527: Parasitic Load
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- DTC C0899 or C0900: Device Voltage
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptors (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Typical Scan Tool Data (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0562: System Voltage (FSCM)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0562: System Voltage (ECM)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0563: System Voltage (FSCM)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0563: System Voltage (ECM)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0615, P0616 or P0617: Starter Relay
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptors (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Component Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0621: Charge Indicator (Diesel)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Testing - Single Generator (w/o KD9)
- Circuit/System Testing- Dual generators (w/ KD9)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0621: Generator L-Terminal (Gas 4.8L, 5.3L, 6.2L, 7.0L)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0621: Generator L-Terminal (Gas 4.3 Liter)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- DTC P0622: Generator F-Terminal
- Diagnostic Instructions (Battery, Charging System And Starting System)
- DTC Descriptor (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Conditions For Running The DTC (Battery, Charging System And Starting System)
- Conditions For Setting The DTC (Battery, Charging System And Starting System)
- Action Taken When The DTC Sets (Battery, Charging System And Starting System)
- Conditions For Clearing The DTC (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- Symptoms - Engine Electrical (Battery, Charging System And Starting System)
- Battery Inspection/Test
- Diagnostic Instructions (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- Battery Charging
- Battery Electrical Drain/Parasitic Load Test
- 12 V Battery (Battery, Charging System And Starting System)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Diagnostic Aids (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- Charging System Test (Battery, Charging System And Starting System)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- Generator Noise Diagnosis (Battery, Charging System And Starting System)
- Starter Solenoid Does Not Click (Battery, Charging System And Starting System)
- Diagnostic Instructions (Battery, Charging System And Starting System)
- Diagnostic Fault Information (Battery, Charging System And Starting System)
- Circuit/System Description (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- Starter Solenoid Clicks, Engine Does Not Crank (Battery, Charging System And Starting System)
- Engine Cranks Slowly (Battery, Charging System And Starting System)
- Starter Noise Diagnosis (Battery, Charging System And Starting System)
- Repair Instructions (Battery, Charging System And Starting System)
- Battery Negative Cable Disconnection And Connection (Battery, Charging System And Starting System)
- Battery Current Sensor Replacement (Battery, Charging System And Starting System)
- Battery Negative Cable Replacement (V8)
- Battery Negative Cable Replacement (V6)
- Battery Negative Cable Replacement (LGH-Primary)
- Auxiliary Battery Negative Cable Replacement (Battery, Charging System And Starting System)
- Battery Positive Cable Replacement (V8)
- Battery Positive Cable Replacement (V6)
- Battery Positive Cable Replacement (LGH-Primary)
- Battery Positive Cable Replacement (LGH-Auxiliary)
- Auxiliary Battery Positive Cable Replacement (LGH)(Battery, Charging System And Starting System)
- Auxiliary Battery Positive Cable Replacement (3400 Series)(Battery, Charging System And Starting System)
- Battery Positive Cable Extension Cable Junction Block Replacement (Battery, Charging System And Starting System)
- Generator Cable Replacement (Battery, Charging System And Starting System)
- Battery Replacement (Primary)(Battery, Charging System And Starting System)
- Battery Tray Replacement (Primary)(Battery, Charging System And Starting System)
- Auxiliary Battery and Tray Replacement (Gas)
- Auxiliary Battery And Tray Replacement (Diesel)(Battery, Charging System And Starting System)
- Engine Ground Strap Replacement (Battery, Charging System And Starting System)
- Starter Replacement (V8)
- Starter Replacement (V6)
- Starter Replacement (Diesel)
- Generator Bracket Replacement (V8)
- Generator Bracket Replacement (V6)
- Generator Bracket Replacement (LGH)
- Auxiliary Generator Bracket Replacement (LGH)
- Generator Replacement (V6)
- Generator Replacement (V8)
- Generator Replacement (Diesel)
- Auxiliary Generator Replacement (Battery, Charging System And Starting System)
- Description And Operation (Battery, Charging System And Starting System)
- Battery Description And Operation (Battery, Charging System And Starting System)
- Charging System Description And Operation (Battery, Charging System And Starting System)
- Electrical Power Management Overview (Battery, Charging System And Starting System)
- Charging System Components (Battery, Charging System And Starting System)
- Charging System Operation (Battery, Charging System And Starting System)
- Battery SULFATION Mode (Battery, Charging System And Starting System)
- Charge Mode (Battery, Charging System And Starting System)
- Fuel Economy Mode (Battery, Charging System And Starting System)
- Headlamp Mode (Battery, Charging System And Starting System)
- Start Up Mode (Battery, Charging System And Starting System)
- Voltage Reduction Mode (Battery, Charging System And Starting System)
- Instrument Panel Cluster Operation (Battery, Charging System And Starting System)
- Electrical Power Management Description and Operation (Gasoline)
- Electrical Power Management Description and Operation (Diesel)
- Starting System Description And Operation (Battery, Charging System And Starting System)
- Special Tools And Equipment (Battery, Charging System And Starting System)
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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.