Chevrolet Uplander (2005-2009) fuse box and relay Diagrams
The Chevrolet Uplander, produced from 2005 to 2009, is a minivan designed to offer comfort, practicality, and family-friendly features. The vehicle’s electrical system is essential for powering a wide range of functions, and the fuse box and relays are key components that help manage and protect this system.
The fuse box in the Chevrolet Uplander plays a critical role in safeguarding various electrical circuits within the vehicle. These circuits control essential systems such as the engine management, lighting (both interior and exterior), audio system, power windows, and more. The Uplander typically has two main fuse boxes: one located under the dashboard on the driver’s side, and another in the engine compartment. The interior fuse box handles many of the vehicle’s interior features, while the engine compartment fuse box focuses on more critical functions related to the engine and powertrain. Each fuse is assigned to a specific circuit, and it will “blow” or break the circuit if there’s an overload or short circuit, preventing damage to more expensive components.
Relays in the Chevrolet Uplander are equally vital. These are electronically controlled switches that manage high-current circuits, such as those for the starter motor, fuel pump, cooling fans, and other power-demanding components. Relays allow a low-current signal to control a high-current circuit, ensuring that the vehicle’s electrical system operates efficiently and safely without overloading smaller switches and wiring.
Regular maintenance of the fuse box and relays in the Chevrolet Uplander is important to prevent electrical issues. For instance, if a fuse blows, it could cause a particular system, like the headlights or the air conditioning, to stop working. Similarly, a faulty relay could lead to more serious problems, such as the engine not starting (if the starter relay fails) or issues with temperature regulation (if the cooling fan relay fails).
By routinely checking the condition of the fuses and relays, owners can address potential problems before they escalate. Replacing a blown fuse or a faulty relay with the correct component is crucial to maintaining the functionality of the vehicle’s electrical system. Understanding the role of these components helps ensure that the Chevrolet Uplander remains reliable and that all its electrical systems function as intended, providing a safe and comfortable driving experience.
MUST READ: DYI – How to Check Car Fuses?
(2005-2009) Chevrolet Uplander fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Chevrolet Uplander 2005-2009 fuse assignment
Year of production: from 2005, 2006, 2007, 2008, 2009
Instrument Panel Fuse Box
Fuse box location
It is located on the passenger’s side of the instrument panel, behind the cover.
Fuse box diagram
Assignment of the fuses and relays in the Instrument Panel
| № | Usage |
|---|---|
| 1 | Trunk, Door Locks |
| 2 | Electronic Level Control |
| 3 | Rear Wiper |
| 4 | Radio Amplifier, DVD Player |
| 5 | Interior Lamps |
| 6 | OnStar |
| 7 | Keyless Entry Module |
| 8 | Cluster, Heating, Ventilation, Air-Conditioning |
| 9 | Cruise Switch |
| 10 | Steering Wheel Illumination |
| 11 | Power Mirror |
| 12 | Stoplamp, Turn Lamps |
| 13 | Heated Seats |
| 14 | Blank |
| 15 | Electronic Level Control |
| 16 | Heated Mirror |
| 17 | Center High-Mounted Stoplamp, Back-up Lamps |
| 18 | Blank |
| 19 | Canister Vent Solenoid |
| 20 | Park Lamps |
| 21 | Power Sliding Door |
| 22 | Blank |
| 23 | Blank |
| 24 | Left Power Sliding Door |
| 25 | Right Power Sliding Door |
| Relays | |
| 26 | Blank |
| 27 | Blank |
| 28 | Park Lamps, Taillamps |
| 29 | Retained Accessory Power |
| 30 | Rear Defog |
| Circuit Breaker | |
| 31 | Power Seats |
| 32 | Power Window |
| PLR | Fuse Puller |
Engine Compartment Fuse Box
Fuse box location
It is located on the passenger’s side of the engine compartment.
Fuse box diagram
Assignment of the fuses and relays in the Engine Compartment
| №/Name | Usage |
|---|---|
| 1 | Right High Beam |
| 2 | Fuel Pump |
| 3 | Diode |
| SPARE | Spare |
| SPARE | Spare |
| 4 | Left High Beam |
| SPARE | Spare |
| SPARE | Spare |
| SPARE | Spare |
| 5 | Not Used |
| 6 | Air Conditioning Clutch |
| 7 | Horn |
| 8 | Left Low Beam |
| 9 | Powertrain Control Module, Electronic Throttle Control |
| 10 | Not Used |
| 11 | Transmission Solenoid |
| 12 | Right Low Beam |
| 13 | Anti-lock Brake System |
| 14 | Powertrain Control Module Ignition |
| 15 | Electronic Ignition |
| 16 | Fuel Injector |
| 17 | Climate Control, RPA, Cruise Control |
| 18 | Electronic Throttle Control |
| 19 | Engine Sensor, Evaporator |
| 20 | Airbag |
| 21 | Not Used |
| 22 | 2005-2006: Emission, All-Wheel Drive 2007-2008: Not Used |
| 23 | Auxiliary Power |
| 24 | Front Windshield Washer |
| 25 | AC/DC Inverter |
| 26 | Rear Blower |
| 27 | Front Blower |
| 28 | Front Windshield Wiper |
| J-Case Fuses | |
| 29 | Fan 1 |
| 30 | Starter Solenoid |
| 31 | Anti-lock Brake System Motor |
| 32 | Blank |
| 33 | Fan 2 |
| 34 | Front Blower High |
| 35 | Battery Main 3 |
| 36 | Rear Defogger |
| 37 | Battery Main 2 |
| 38 | 2005: Battery Main 1 2006-2008: Spare |
| Relays | |
| RUN RLY | Starter |
| LO BEAM | Low Beam |
| FUEL PUMP | Fuel Pump |
| HORN | Horn |
| AC/CLTCH | Air-Conditioning Clutch |
| HI BEAM | High Beam |
| PWR/TRN | Powertrain |
| WPR2 | Wiper 2 |
| WPR1 | Wiper 1 |
| FAN 1 | Fan 1 |
| CRNK | Crank |
| IGN MAIN | Ignition Main |
| FAN2 | Fan 2 |
| FAN3 | Fan 3 |
| BLANK | Not Used |
| PLR | Fuse Puller |
Conclusion
For owners and enthusiasts of classic Chevrolet Uplander 2005-2009, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Chevrolet’s craftsmanship and innovation in the automotive industry during that era.