Chevrolet HHR (2005-2006) fuse box and relay Diagrams

Chevrolet HHR 2005 2006

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.

chevrolet hhr fuse box diagram floor console 2005 2006
Chevrolet HHR – fuse box diagram – floor console
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.

Chevrolet hhr fuse box engine compartment fuse block
Chevrolet HHR – fuse box – engine compartment fuse block
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.