Holden Trailblazer (RG; 2017 – 2020) – fuse and relay box diagram
Year of production: 2017, 2018, 2019, 2020
The Holden Trailblazer (RG) 5-door SUV was manufactured between 2017 and 2020. This article provides fuse box diagrams for the 2017, 2018, 2019, and 2020 models of the Trailblazer. It also includes details on the location of the fuse panels within the vehicle and explains the assignment of each fuse (fuse layout) and relay.
Passenger Compartment Fuse Box
Fuse Box Location
The fuse box is behind the instrument panel cap.
Fuse Box Diagram
Assignment of the fuses in the passenger compartment
| № | Amps | Usage |
|---|---|---|
| 1 | 20A | Body Control Module (6) |
| 3 | 20A | Cigarette Lighter (if available) |
| 6 | 20A | Front and Rear Power Outlets (if available) |
| 7 | 30A | Body Control Module (8) |
| 10 | 20A | Radio (if available) |
| 11 | 2A | Ignition Switch |
| 12 | 15A | Side Blind Zone (SBZ) (If available) |
| 13 | 15A | Body Control Module (3) |
| 14 | 10A | Front A/C Control Module |
| 15 | 15A | Seat Fleated (If available) |
| 16 | 15A | Body Control Module (1) |
| 17 | 30A | Front Door Power Window Switch |
| 18 | 10A | Rear A/C Blower |
| 19 | 30A | Rear Door Power Window Switch (if available) |
| 20 | 15A | Body Control Module (4) |
| 21 | 10A | Spare |
| 22 | 30A | Power Seat (if available) |
| 25 | 10A | Sensing and Diagnose Module (SDM) |
| 26 | 15A | Body Control Module (2) |
| 27 | 2A | Clock Spring |
| 28 | 7.5A | Data Link Connector (DLC) |
| 30 | 10A | Tailgate Lock |
| 31 | 10A | Instrument Panel Cluster (IPC), Displays – Radio (Instrument Panel), USB |
| 33 | 10A | Central Gateway Module (CGM) – Cyber Security |
| 34 | 30A | Front A/C Blower |
| 35 | 30A | Rear A/C Blower |
| 37 | 10A | Front Collision Alert (FCA) / Rain Sensor (if available) |
| 39 | 10A | Rear View Mirrors (if available) |
| 53 | 40A | BUS-C (fuses: F12, F30, F33, F37, F39, F40) |
| 54 | 40A | Accessory (12V) |
| Relays | ||
| RLY43 | Rear A/C Blower | |
| RLY45 | C-Enable | |
| RLY46 | RAP and Accessory (12V) | |
| RLY47 | RAP and Accessory (12V) | |
| RLY48 | Run relay | |
Engine Compartment Fuse Box
Fuse Box Location
Disengage the cover, lift it upward and remove it.
Fuse Box Diagram
Assignment of the fuses in the engine compartment
| № | Amps | Usage |
|---|---|---|
| 1 | 10A | Compressor A/C Clutch |
| 2 | – | Not Used |
| 3 | 15A | Electric Power Steering (EPS) (if available) |
| 4 | – | Not Used |
| 5 | 15A | Horn |
| 6 | 15A | Front Fog Lamp (if available) |
| 7 | 10A | High Beam LH |
| 8 | 10A | High Beam RH |
| 9 | 7.5A | Engine Control Module – (Diesel) |
| 10 | 15A | Powertrain Relay (3) – (Diesel) |
| 11 | 20A | Engine Control Module (1) (Diesel) |
| 12 | 10A | Powertrain Relay (1) |
| 13 | 10A | Powertrain Relay (2) |
| 14 | 15A | Powertrain Relay (4) |
| 15 | 15A | Run Crank Relay Signal |
| 16 | 15A | Automatic Transmission Control Module (if available) |
| 17 | 10A | Transfer Case Module, Head Lamp Leveling, Trailer Interface Module (if available) |
| 18 | 10A | Power Supply Cluster – A/C – Airbag Module |
| 19 | 20A | Fuel Pump (Diesel) |
| 20 | – | Not Used |
| 21 | 30A | Rear Demister (if available) |
| 22 | 15A | Outside Rear View Mirror Demister (if available) |
| 23 | 15A | 2017: Cab Heater (Diesel) |
| 24 | 20A | Rear Wiper (SUV) |
| 25 | 10A | Front / Rear (SUV) Washer Pump |
| 26 | 10A | Park Assist (if available) |
| 27 | 5A | Body Control Module |
| 28 | 15A | Auxiliary Lamps Provision (If equipped) |
| 29 | 30A | ABS or ESC Module (if available) |
| 30 | 10A | Horn |
| 31 | 15A | Body Control Module |
| 32 | 15A | Engine Control Module (Battery) (Diesel) |
| 33 | 10A | Communication Wire Between Modules |
| F34* | 30A | Trailer Hitch Module (if available) *: Located near battery positive terminal |
| SB01 | 50A | ABS or ESC Module Pump (if available) |
| SB02 | 30A | Transfer Case Control Module (4X4) (if available) |
| SB03 | 60A | Preheating Glow Plug Module (Diesel) |
| SB04 | 20A | 2020: Rear Power Outlet (Load Area) |
| SB05 | 30A | Starter Motor Solenoid |
| SB06 | 30A | Front Wiper |
| SB07 | 30A | Fuel Fleater (Diesel) |
| SB08 | – | Not Used (Diesel) |
| SB09 | 30A | Spare |
| Relays | ||
| RLY01 | Starter | |
| RLY03 | High Beam | |
| RLY05 | 2017: Viscous Heater (Diesel) | |
| RLY08 | Front Wiper Control | |
| RLY09 | Front Wiper Speed | |
| RLY10 | Rear Demister and Outside Rear View Mirror Demister (if available) | |
| RLY11 | Powertrain | |
| RLY12 | A/C Clutch | |
| RLY13 | Fuel Heater (Diesel) | |
| RLY14 | Not Used (Diesel) | |
| RLY15 | Not Used | |
| RLY18 | Run Crank | |
| RLY19 | Fuel Pump (Diesel) | |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.