The Chevrolet HHR (2005-2006) is a retro-styled compact SUV known for its versatility and practicality. Its electrical system, which controls everything from essential engine functions to comfort features, relies heavily on the fuse box and relay systems to operate safely and efficiently.
The fuse box in the Chevrolet HHR is located in two primary areas: the engine compartment and inside the cabin, under the front passenger seat. The engine compartment fuse box protects high-power components such as the engine control system, cooling fans, and headlights. Meanwhile, the interior fuse box manages lower-power circuits like the radio, power windows, and interior lights. Each fuse serves to protect these circuits by breaking the connection in the event of an overload or short circuit.
Relays in the HHR function as switches for high-current systems, such as the starter motor, fuel pump, and air conditioning system. These relays allow the car’s low-current systems to control high-current operations efficiently and safely. Maintaining the health of both the fuses and relays is critical to ensure the proper functioning of the vehicle’s electrical systems and to prevent potential issues down the line.
MUST READ: DYI – How to Check Car Fuses?
(2005-2006) Chevrolet HHR 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 HHR (2005-2006) fuse assignment
- Cigar lighter (power outlet) fuses in the Chevrolet HHR are the fuses №7 (Rear Power Plug (Panel Van Only)), №12 (Rear Power Outlet (Panel Van Only)), №29 (Cigarette Lighter) and №30 (Power Outlet) in the Engine Compartment Fuse Box.
Year of production: from 2005, 2006
Floor console fuse block
The floor console fuse block is located on the passenger’s side of the console behind the forward panel.
| Fuses | Description |
| 1 | Fuse Puller |
| 2 | Spare |
| 3 | Spare |
| 4 | Spare |
| 5 | Spare |
| 6 | Amplifier |
| 7 | Cluster |
| 8 | Ignition Switch, PassKey |
| 9 | Stoplamp |
| 10 | Climate Control System, PassKey |
| 11 | Empty |
| 12 | Spare |
| 13 | Airbag |
| 14 | Spare |
| 15 | Wiper |
| 16 | Climate Control System, Ignition |
| 17 | Blank |
| 18 | Blank |
| 19 | Electric Power Steering, Steering Wheel Controls |
| 20 | Sunroof |
| 21 | Spare |
| 22 | Blank |
| 23 | Radio |
| 24 | Sensing and Diagnostic Module |
| 25 | Engine Control Module, Transmission Control Module |
| 26 | Door Locks |
| 27 | Interior Lights |
| 28 | Blank |
| 29 | Power Windows |
| Relays | Usage |
| 30 | Climate Control System |
| 31 | Blank |
| 32 | Retained Accessory Power |
Engine compartment fuse block
The underhood fuse block is located on the driver side of the engine compartment.
| Fuses | Description |
| 1 | Electric Power Steering |
| 2 | Rear Defogger |
| 3 | Empty |
| 4 | Body Control Module 3 |
| 5 | Starting System |
| 6 | Body Control Module 2 |
| 7 | Empty |
| 8 | Empty |
| 9 | Air Conditioning Clutch Diode |
| 10 | Liftgate, Sunroof |
| 11 | Empty |
| 12 | Empty |
| 13 | Fuel Pump |
| 15 | Air Conditioning Clutch |
| 16 | Empty |
| 17 | Rear Wiper |
| 18 | Liftgate Release |
| 19 | Fuel Pump |
| 20 | Rear Wiper |
| 21 | Mirror |
| 22 | Air Conditioning |
| 23 | Heated Seats (Option) |
| 25 | Fuse Puller |
| 27 | Empty |
| 28 | Empty |
| 29 | Cigarette Lighter |
| 30 | Power Outlet |
| 31 | Empty |
| 32 | Empty |
| 33 | Emissions |
| 36 | Empty |
| 37 | Power Seat (Option) |
| 39 | Windshield Washer Pump |
| 40 | Cooling Fan |
| 41 | Empty |
| 42 | Engine Control Module |
| 43 | Engine Control Module, Transmission |
| 44 | Antilock Brake System (Option) |
| 45 | Injectors, Ignition Module |
| 46 | Park, Neutral |
| 47 | Heated Seat, Back-up Lamps |
| 48 | Rear Windshield Washer |
| 49 | Windshield Washer Pump |
| 53 | Fog Lamps (Option) |
| 55 | Horn |
| 56 | Audio, OnStar® |
| 57 | Antilock Brake System (Option) |
| 58 | Windshield Wiper Diode |
| 59 | Windshield Wiper |
| 60 | Horn |
| 61 | Antilock Brake System (Option) |
| 62 | Instrument Panel, Ignition |
| 63 | Driver Side High-Beam |
| 64 | Canister Vent |
| 65 | Driver Side Low-Beam |
| 66 | Passenger Side Low-Beam |
| 67 | Passenger Side High-Beam |
| 69 | Parking Lamps |
| 71 | Headlamp Low Beam |
| 72 | Headlamp High Beam |
| Relays | Description |
| 14 | Rear Defogger Relay |
| 24 | Empty |
| 26 | Powertrain |
| 34 | Starting System |
| 35 | Empty |
| 38 | Empty |
| 50 | Cooling Fan |
| 51 | Run, Crank |
| 52 | Windshield Wiper |
| 54 | Fog Lamps (Option) |
| 68 | Parking Lamps |
| 70 | Windshield Wipers |
Other relays:
– A Center High-Mounted Stoplamp Relay and a Rear Access Panel Door Interlock Relay (Panel Van only) are located underhood in front of the left shock tower.
– The Left Rear Access Panel Door Relay (Panel Van Only), and the Right Rear Access Panel Door Relay (Panel Van Only) are located in the rear of the vehicle behind the right rear quarter trim panel.
– A Rear Power Plug mini fuse (Panel Van Only) is located near the battery in the rear of the vehicle.
Conclusion
For owners and enthusiasts of classic Chevrolet HHR (2005-2006), 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.
