Chevrolet TrailBlazer is an American five-door mid-size SUV. It was produced in 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009, 2010. In this article, we will consider in detail the schemes of the first generation Chevrolet TrailBlazer (GMT360), as well as Buick Rainier (2004-2007); GMC Envoy (2002-2009); Saab 9-7X (2004-2009); Isuzu Ascender (2002-2008) and Oldsmobile Bravada (2002-2004).

Here you will find the locations and photos of the mounting blocks. We will separately note the fuses responsible for the cigarette lighter and fuel pump.

In the engine compartment

The underhood unit is located on the passenger side. It is covered with a plastic cover.

General view.

No.Description of fusesCurrent, A
1Canister Vent Solenoid Valve, Transmission Control Module (TCM) EVAP Evaporative Emissions System (EVAP)10
22005-2010 (5.3L, 6.0L): Body Control Module (BCM), Anti-Theft Alarm, Anti-Theft Alarm Control Module10
3Windshield washer pump15
4Headlights – high beam, high beam relay10
52005-2010 (5.3L, 6.0L): Oxygen sensor10
64.2L: Air Conditioner Relay10
2005-2010 (5.3L, 6.0L): Oxygen sensor10
7 –
82001: Transfer Case Shift Control Module25
2004-2010: Transfer Case Position Sensor Motor30
92005-2010 (5.3L, 6.0L): Fuel Injectors, Ignition Coils (Right Side)20
2001-2004 (5.3L): Fuel Injectors, Ignition Coils (Right Side)15
2006-2010 (4.2L): Oxygen Sensor10
102001-2004 (5.3L): Fuel Injectors, Ignition Coils (Left Side)15
Evaporative Emission (EVAP) System, Canister Purge Solenoid, Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor, Valve Lifter Oil Manifold (VLOM) Assembly15
115.3L, 6.0L: Throttle Actuator Control Module (TAC) – Powertrain Control Module (PCM) / Engine Control Module (ECM)15
122001-2004: Body Control Module (BCM), Anti-Theft Alarm, Anti-Theft Alarm Control Module.10
2005-2010 (5.3L, 6.0L): Fuel Injectors, Ignition Coils (Left Side)20
2005-2010 (4.2L): Body Control Module (BCM), Anti-Theft Alarm, Anti-Theft Alarm Control Module10
13Trailer connector (right turn signal)10
14Aulomatic Level Control Compressor30
15Trailer connector (reverse lights)10
16Trailer connector (left turn signal)10
17Saab: Ignition Switch5
18Brake light switch25
19Trailblazer Cigarette Lighter, Data Link Connector (DLC)20
205.3L, 6.0L: Air Conditioner Relay10
21Fuel Pump Relay, Powertrain Control Module (PCM)20
22Electronic Adjustable Pedals (EAP) Relay15
23Right high beam headlight10
24Left high beam headlight10
25Powertrain Control Module (PCM) / Engine Control Module (ECM)10
26Brake light switch, gear shift lock actuator10
27Right low beam headlight10
28Left low beam headlight10
29Headlight Driver Module (HDM) Relay15
30Direction indicator/hazard warning module25
31Body Control Module (BCM)10
32Front passenger air bag pressure system (PPS) module, air bag sensing and diagnostic module (SDM), rollover sensor10
332001-2008: Engine Cooling Fan10
34Ignition Relay #1, A/C Relay, Park/Neutral Position Switch (PNP), Headlamp Leveling Actuators, Driver Inverter Module, Brake Light Switch, Traction Control Switch, Headlamp Leveling Switch, Instrument Cluster, Turn Signal/Multi-Function Switch, Rearview Mirror10
352001: Evaporative Canister Purge and Vent Solenoid10
2004-2010: Electronic Adjustable Pedal (EAP) Relay, Reverse Lamp (Park/Neutral Position Switch (PNP))15
364.2L: Powertrain Control Module (PCM) / Engine Control Module (ECM), Fuel Injectors, Ignition Coils15
5.3L, 6.0L: Engine Control Module (ECM)15
372004-2008 (4.2L): Secondary Air Injection (AIR) Pump Relay, Secondary Air Injection (AIR) Pump, Secondary Air Injection (AIR) Solenoid15
384.2L: Powertrain Control Module (PCM), Throttle Actuator Control (TAC) Module10
2001-2004 (5.3L): Oxygen Sensors 15
2010: Secondary Air Injection (AIR) Pump Relay15
392001: Tail Light (Park/Neutral Position Switch (PNP))15
2004-2005: EVAP Canister Purge Solenoid, EVAP Canister Vent Solenoid10
402001-2005 (4.2L): Oxygen Sensors10
2001-2004 (5.3L): Oxygen Sensors15
2005-2010 (5.3L, 6.0L): 1-2 Shift Solenoid (1-2 SS), 2-3 Shift Solenoid (2-3 SS), 3-2 Shift Solenoid (2-3 SS), Torque Converter Clutch (TCC) Solenoid, Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid, Transmission Control Module (TCM)15
41Headlight Washer Relay, Rear Window Wiper Motor Relay20
42Front Fog Light Relay15
43Trailer brake wiring30
44Horn relay15
45Instrument cluster (IPC)10
462005-2010 (5.3L, 6.0L): Engine Control Module (ECM)10
472005-2010: Regulated voltage15
482010: Engine Control Module (ECM)15
49Trailer connector30
50ABS – Electronic Brake Control Module (EBCM)60
514.2L: Secondary Air Injection (AIR) Pump Relay60
522006-2010: Vehicle Stability Enhancement System (VSES) – Electronic Brake Control Module (EBCM)60
53 –
54 –
552006-2010: Blower Motor Control Module, Blower Motor Resistor Assembly40
56Starter relay, ignition switch40
57 –
582001-2005: Blower Motor Resistor Assembly (HVAC Manual), Motor Control Processor (HVAC)40
59Ignition switch40
60 –
61 –
62Fuse box in the passenger compartment125
632010: Evaporative Emission (EVAP) System, Canister Purge Solenoid, Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor, Valve Lifter Oil Manifold (VLOM) Assembly15
642010 (Saab): Evaporative Emissions (EVAP) System, Canister Purge Solenoid, Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor15
Relay modules 
R1Windshield washer pump
R2High beam headlights
R32001-2004 (5.3L): Ignition (fuses: “5”, “10”, “11”)
2005-2010: Powertrain Control Module (PCM) / Engine Control Module (ECM)
R44.2 l: air conditioner
2010: Secondary Air Injection Pump (AIR)
R5 – 
R6Starter 
R75.3L, 6.0L: air conditioning
R8Fuel pump relay
R9Electronic adjustable pedals (EAP)
R10Engine cooling fan
R11Headlamp control module (low beam)
R12 – 
R13Headlight washer system
R14Rear window washer pump
R15Front fog lights
R16Beep 

In the salon

The mounting block is located under the rear seat. Pull the seat forward to access it.

General view.

No.DescriptionCurrent, A
1 –
2 –
3 –
4 –
5 –
6 –
7except Saab: Body Control Module (BCM)3
Saab: Body Control Module (BCM)10
8Electronic Brake Control Module (EBCM)10
9except Saab: Body Control Module (BCM)3
Saab: Side lights / direction indicators 10
10Saab: Body Control Module (BCM)3
11Transfer case gearshift switch, automatic level control (ALC) compressor, front axle drive15
12Transmission, Automatic Transmission Shift Lock Actuator, Engine Control Module (ECM), Powertrain Control Module (PCM), Theft Deterrent Module, 1-2 Shift Solenoid (1-2 SS), 2-3 Shift Solenoid (2-3 SS) Valve, 3-2 Shift Solenoid (3-2 SS), Torque Converter Clutch (TCC) Solenoid Valve10
13except Saab: Auxiliary Power Outlet (Front), Auxiliary Power Outlet (Console), Auxiliary Power Outlet (Rear (2005-2010))20
14except Saab: HVAC Control Module30
15Instrument Cluster, Front Passenger Door Module (FPDM), Tail Light Assembly (RH), Parking Light (RH), Parking/Turn Signal Light10
16Trailer connector (parking lights)10
17Radio, digital radio receiver15
18except Saab: Body Control Module (BCM)10
Saab: Parking Light/Direction Indicator – RF10
19HVAC Control Module, Turn Signal/Multi-Function Switch, Air Temperature Sensors, Recirculation Actuator, Console Mode Actuator, Traction Control Switch, Electronic Brake Control Module (EBCM), HVAC Control Module (Auxiliary),/Steering Wheel Position Sensor10
20Instrument Cluster, Driver Door Module (DDM), Tail Light Assembly (LH), Side Light (LH), Parking Warning Light10
21 Direction indicator/Multifunction switch, Side lights, Front parking light10
22HVAC Control Module, HVAC Control Module (Auxiliary)10
23Transmission Control Module (TCM)10
24Tail lights, Powertrain Control Module (PCM), Throttle Actuator Control (TAC), Engine Control Module (ECM), Transmission Control Module (TCM)15
25Windscreen wiper motor25
26 2001-2006 (except Saab): Body Control Module (BCM)10
2006-2010 (except Saab): Sunroof Motor20
Saab: Body Control Module (BCM)10
27except Saab: Body Control Module (BCM)3
28 2001-2006 (except Saab): outside humidity sensor, DVD player10
29Saab: Sunroof motor 20
30Garage door opener, voice recorder, DVD player, communication interface module (CIM)10
31EXT (2001-2006): sunroof20
32 –
33 –
34Electric door locking drive10
352001-2006 (except Saab): Hatch20
EXT (2001-2006): Power Windows, Sunroof20
362005-2010: Cobra Impact Sensor Module, Tilt Sensor, Rear Door Module (LGM), Driver’s Memory Seat10
37Right rear light, side lights10
38Center Stop Light (CHMSL)10
39left rear light10
402001-2006 (except Saab): Blower Motor (Aux), Supercharger Motor Control Processor (Aux)30
412001-2004 (except Saab): Additional power outlet (rear cigarette lighter)20
42Audio amplifier20
43Front Passenger Door Module (FPDM)10
44Rear window wiper motor15
45Driver Door Module (DDM)10
462001-2004 (except Saab): Memory seat module (driver), memory seat module (front passenger), impact and tilt sensor10
47Rear fog light10
48Body Control Module (BCM)10
49Luggage door module30
50Body Control Module (BCM)10
51Saab: Additional socket – front / rear / cigarette lighter20
52Saab: Body Control Module (BCM)2
Automatic switches 
51Power seat, memory seat module (driver), memory seat module (front passenger)30
52Power Window (Driver Door Module (DDM), Left Rear Window Switch)25
53Power Window (Front Passenger Door Module (FPDM), Right Rear Window Switch)25
Relay 
R1except Saab: rear fog light
R2Parking lights, rear lights (fuses: “16”, “21”, “37”, “39”)
R3Power Door Unlock (Rear Door Lock Actuators)
R4Electric door lock (rear door lock actuators)
R5EXT (2001-2006): Sunroof, Power Windows
R6Saab: Ignition (fuse: “8:, 11”, “19”)
R7Saab: Accessories
R8Saab: Ignition (fuse: “12”)