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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 247 (COMPONENT LOCATIONS - ELECTRICAL CENTER IDENTIFICATION VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWS
2009 Chevrolet Tahoe Base, 4.8 C
Electrical Center Identification Views
2009 Chevrolet Tahoe Base, 4.8 CSECTION Electrical Center Identification Views
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 GMC Yukon XL, 2010 GMC Yukon, 2010 Chevrolet Tahoe, 2010 Chevrolet Suburban, and 2010 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
FUSE BLOCK - AUXILIARY (HP2) FUSE AND RELAY IDENTIFICATION LEGEND
| No. | Fuse And Relay Description | Rating | Circuits |
|---|---|---|---|
| 1 | ACPO Fuse | 25A | Accessory Power Inverter Module |
| 2 | BECM FAN Fuse | 15A | Generator Battery Vent Fan Relay |
| 3 | ACCM Fuse | 15A | A/C Compressor |
| 4 | CAB HTR PUMP Fuse | 10A | Heater Coolant Pump |
| 5 | EMPTY | - | Not Used |
| 6 | COOL PUMP Fuse | 15A | Generator Control Module Coolant Pump - Left, Generator Control Module Coolant Pump - Right |
| 7 | EPS Fuse | 15A | Electronic Power Steering Motor Control Module |
| 8 | PIM 1 Fuse | 15A | Drive Motor Generator Power Inverter Module |
| 9 | PIM 2 Fuse | 15A | Drive Motor Generator Power Inverter Module |
| 10 | BECM Fuse | 15A | Drive Motor Generator Battery Control Module, Serial Data Gateway (SDG) Module |
| - | FAN 1 Fuse | 40A | FAN LO Relay, FAN MID 1 Relay |
| - | FAN 2 Fuse | 40A | FAN HI Relay, FAN MID 2 Relay |
| - | TRANS PUMP Fuse | 60A | Auxiliary Transmission Pump Control Module |
| - | CAB HTR PUMP Relay | - | CAB HTR PUMP Fuse, Heater Coolant Pump |
| - | COOL PUMP Relay | - | COOL PUMP Fuse, Generator Control Module Coolant Pump - Left, Generator Control Module Coolant Pump - Right |
| - | FAN LO Relay | - | Cooling Fan - Left |
| - | FAN MID 1 Relay | - | Engine Cooling Fan Resistor - Left |
| - | FAN MID 2 Relay | - | Cooling Fan - Right |
| - | FAN HI Relay | - | Cooling Fan - Right |
| - | FAN CNTRL Relay | - | Cooling Fan - Left |
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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.