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 MANUALSGMC2011SAVANA SPECIAL 4.8 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)
2011 GMC Savana Special 4.8 A
Section 11 (Battery, Charging System And Starting System)
2011 GMC Savana Special 4.8 ASECTION Section 11 (Battery, Charging System And Starting System)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 GMC Savana Special, 2010 GMC Savana Camper Special, 2010 GMC Savana, 2010 Chevrolet RV Cutaway, and 2010 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications (Battery, Charging System And Starting System)
- Schematic And Routing 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 B1325
- 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)
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1424 (TDM)
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1424 (Coolant Heater)
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1425
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1439 (Battery, Charging System And Starting System)
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1516 (Battery, Charging System And Starting System)
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1517
- 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 Procedures (Battery, Charging System And Starting System)
- DTC B1527
- 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)
- Repair Procedures (Battery, Charging System And Starting System)
- DTC P0562 (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 Procedures (Battery, Charging System And Starting System)
- DTC P0562 (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 Procedures (Battery, Charging System And Starting System)
- DTC P0563 (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 Procedures (Battery, Charging System And Starting System)
- DTC P0563 (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 Procedures (Battery, Charging System And Starting System)
- DTC P0615
- 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 Procedures (Battery, Charging System And Starting System)
- DTC P0621 (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 (Battery, Charging System And Starting System)
- Repair Procedures (Battery, Charging System And Starting System)
- DTC P0621 (Gas)
- 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 Procedures (Battery, Charging System And Starting System)
- DTC P0622
- 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 Procedures (Battery, Charging System And Starting System)
- Symptoms - Engine Electrical (Battery, Charging System And Starting System)
- Battery Inspection/Test (Battery, Charging System And Starting System)
- Battery Charging (Battery, Charging System And Starting System)
- Battery Electrical Drain/Parasitic Load Test (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)
- Using An Inductive Pickup Probe (Battery, Charging System And Starting System)
- Using the EL 38758 Parasitic Draw Test Switch
- Circuit/System Testing (Battery, Charging System And Starting System)
- Repair Procedures (Battery, Charging System And Starting System)
- Battery Common Causes of Malfunction
- Charging System Test
- Diagnostic Instructions (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 Procedures (Battery, Charging System And Starting System)
- Generator Noise Diagnosis (Battery, Charging System And Starting System)
- Starter Solenoid Does Not Click
- 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 Procedures (Battery, Charging System And Starting System)
- Starter Solenoid Clicks, Engine Does Not Crank
- Diagnostic Instructions (Battery, Charging System And Starting System)
- Reference Information (Battery, Charging System And Starting System)
- Schematic Reference (Battery, Charging System And Starting System)
- Connector End View Reference (Battery, Charging System And Starting System)
- Description And Operation (Battery, Charging System And Starting System)
- Electrical Information Reference (Battery, Charging System And Starting System)
- Scan Tool Reference (Battery, Charging System And Starting System)
- Circuit/System Verification (Battery, Charging System And Starting System)
- Repair Procedures (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 Current Sensor Replacement
- Battery Negative Cable Replacement (LMM -Primary)
- Battery Negative Cable Replacement (LU3 and RVS)
- Battery Negative Cable Replacement (LY2, LMF or LY6)
- Battery Negative Cable Replacement (LGH - Primary)
- Auxiliary Battery Negative Cable Replacement (LGH,LMM)
- Battery Positive Cable Replacement (With LMM Primary)(Battery, Charging System And Starting System)
- Battery Positive Cable Replacement (With LU3)
- Battery Positive Cable Replacement (With LMM Auxiliary)
- Battery Positive Cable Replacement (With LY2, LME or LY6)
- Auxiliary Battery Positive Cable Replacement (LGH,LMM)
- Auxiliary Battery Positive Cable Replacement (3400 Series HD)
- Battery Positive Cable Extension Cable Junction Block Replacement
- Generator Cable Replacement (Battery, Charging System And Starting System)
- Battery Replacement (Primary)
- Battery Tray Replacement (Primary)(Battery, Charging System And Starting System)
- Auxiliary Battery and Tray Replacement (Gas)
- Auxiliary Battery and Tray Replacement (Diesel)
- 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 (LMM)
- Generator Bracket Replacement (LGH)
- Auxiliary Generator Bracket Replacement (KD9)
- Generator Replacement (V6)
- Generator Replacement (V8)
- Generator Replacement (LMM)
- Generator Replacement (LGH)
- Auxiliary Generator Replacement (KD9)
- Description And Operation (Battery, Charging System And Starting System)
- Battery Description and Operation
- Charging System Description and Operation
- Electrical Power Management (EPM) Overview (Battery, Charging System And Starting System)
- Charging System Components
- Generator (Battery, Charging System And Starting System)
- Body Control Module (BCM)(Battery, Charging System And Starting System)
- Battery Current Sensor (Battery, Charging System And Starting System)
- Engine Control Module (ECM)(Battery, Charging System And Starting System)
- Instrument Panel Cluster (IPC)(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 (IPC) Operation (Battery, Charging System And Starting System)
- Electrical Power Management Description And Operation (Battery, Charging System And Starting System)
- 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.