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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 28 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA LIST
2009 Chevrolet Tahoe Base, 4.8 C
Scan Tool Data List
2009 Chevrolet Tahoe Base, 4.8 CSECTION Scan Tool Data List
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Amplifier (AMP)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Voltage | Data Display | Volts | 13.9 Volts |
Body Control Module (BCM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Low at Start | Data Display/ Charging Info | Yes/No | No |
| Batt. Open Ckt. Tested | Data Display/ Charging Info | Yes/No | No |
| Batt. Open Ckt. Voltage | Data Display/ Charging Info | Volts | 13.03 Volts |
| Battery Voltage | Data Display/ Charging Info | Volts | 13.9 Volts |
| Batt. Voltage High Res. | Data Display/ Charging Info | Volts | 12.417 Volts |
| Parasitic Current | Data Display/ Charging Info | Amps | 0.0 Amps |
| Prev. State of Charge | Data Display/ Charging Info | % | 90% |
| Start Up State of Charge | Data Display/ Charging Info | % | 80% |
| State of Charge | Data Display/ Charging Info | % | 85% |
| State of Charge Low | Data Display/ Charging Info | Yes/No | No |
Digital Radio Receiver (DRR)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Voltage | Data Display | Volts | 13.9 Volts |
Drivers Door Switch
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Voltage Signal | Data Display/Data | Volts | 13.9 Volts |
Electronic Brake Control Module (EBCM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Voltage Signal | Data Display/ABS Data | Volts | 13.9 Volts |
Electronic Suspension Control (ESC) Module
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Voltage Signal | Data Display | Volts | 13.9 Volts |
Engine Control Module (ECM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF | |||
| Crank Request Signal | ECM, Data Display, Electrical/Theft Data | Yes/No | No |
| EPM Inhibit Reason | ECM, Data Display, Electrical/Theft Data | None, DLC Override, Fuel Demand, OBD Demand, MAF Demand, Deact Demand, TCM Demand | None |
| GEN F-Terminal Signal | ECM, Data Display, Electrical/Theft Data | % | 0% |
| GEN L-Terminal Command | ECM, Data Display, Electrical/Theft Data | % | 0% |
| Ignition 1 Signal | ECM, Data Display, Electrical/Theft Data | Volts | Varies |
| Ignition Accessory Signal | ECM, Data Display, Electrical/Theft Data | On/Off | On |
| PNP Switch (If Equipped) | ECM, Data Display, Electrical/Theft Data | Park/Neutral/In Gear | Park |
| Starter Relay Command | ECM, Data Display, Electrical/Theft Data | On/Off | Off |
Instrument Panel Cluster (IPC)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Running | |||
| Battery Voltage | Data Display | Volts | 13.9 Volts |
Liftgate Module
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions : Ignition ON/Engine Running | |||
| Battery Voltage Signal | Data Display/Data | Volts | 13.9 Volts |
Park Assist Module
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions : Ignition Cranking | |||
| Battery Voltage | Data Display/Battery Data | Volts | 13.9 Volts |
Passenger Door Switch
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions : Ignition ON/Engine Running | |||
| Battery Voltage Signal | Data Display/Data | Volts | 13.9 Volts |
Supplemental Inflatable Restraint
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions : Ignition ON/Engine Running | |||
| Battery Voltage Signal | Data Display/Data | Volts | 13.9 Volts |
Transmission Control Module (TCM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions : Ignition ON/Transmission in Park | |||
| TR Sw. | Engine Electrical | Park, Reverse, Neutral, Drive 5, Drive 4, Drive 3, Drive 2, Drive 1 | Park |
Theft Deterrent Module (TDM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition Cranking | |||
| Ignition Voltage Signal | Data Display/TDM Data | Present/Not Present | Present |
| Start Disabled | Data Display/TDM Data | Yes/No | Yes |
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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.