Chevrolet Blazer is a mid-size five-door SUV. Produced in 1996, 1997, 1998, 1999, 2000 and 2001. After that, it was replaced by the updated Chevrolet Trail Blazer. Many people call this transition a restyling. It was officially sold in 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009. At this, the production of the first generation was discontinued. In this publication, we will show the location of the first generation Chevrolet Blazer fuse and relay boxes with a designation of the circuits and photo examples of boxes.
Due to the fact that the Chevrolet Blazer has been shipped worldwide, there is no one generic description of fuses and relays. The design of the boxes and the purpose of the elements depends on the year of manufacture and the level of equipment. Check the appointment with yours, it will be applied to the protective cover.
Contents
Passenger compartment
Execution 1
The box is located at the end of the dashboard on the driver’s side. Remove the cover to gain access.
Diagram
Type 1
Type 2
Type 3
Protected components
| RRWPR | Rear window wiper switch |
| SEOACCY | Power supply for special additional equipment |
| WSWPR | Windshield wipers |
| TVS ACCY | Car body system controller additional electrical equipment |
| IGN3 | Ignition; electric seat heating system |
| 4WD | All-wheel drive system; additional battery |
| HTR/AC | Climate control system |
| LCK | Central door locking relay (locking function) |
| HVAC1 | Internal rearview mirror; climate control system |
| LTDR | Driver door wiring connector |
| CRUISE | Cruise control |
| UNLCK | Central door locking relay (unlocking function) |
| RRFOG LP | Rear fog lights |
| BRAKE | Electronic anti-lock braking system control module |
| DRIVER UNLCK | Central locking relay for driver’s door unlocking |
| IGNO | Powertrain control module; transmission control module |
| TVS IGN 0 | Vehicle body system controller |
| VEH CHMSL | Central high-mounted brake light for car and trailer |
| LTTRLRST / TRN | Left turn signal / trailer brake light |
| LTTRN | Left direction indicators and left side marker lamps |
| VEH STOP | Stop lights of the car; brake system module; electronic throttle control module |
| RT TR LR ST/TRN | Right turn signal / trailer brake light |
| RTTRN | Right direction indicators and right side marker lamps |
| BODY | Wiring harness connector |
| DDM | Driver’s door module |
| AUX PWR 2, M/GATE | Additional electrical outlets in the luggage compartment |
| LCKS | Central door locking system |
| ECC, TPM | Climate control system at the rear of the car; tailgate; tire pressure monitor |
| TVS 2C | Vehicle body system controller |
| HAZRD | Hazard warning light module |
| CB LT DRS | Circuit breaker left electric glass lifter |
| TVS 2B | Vehicle body system controller |
| TBC2A | Vehicle body system controller |
The cigarette lighter is designated as CIGAR LTR.
Execution 2
If you did not find the box in the dashboard, then it will be located under the rear seat cushion.
Diagram
Assignment
| 3 | Luggage compartment door, module 2 |
| 4 | Car body system controller 3 |
| 5 | Not used |
| 6 | Not used |
| 7 | Vehicle body system controller 2 |
| 8 | Electric seat adjustment |
| 9 | Tailgate wiper |
| 10 | Driver’s door module |
| 11 | Audio amplifier |
| 12 | Front passenger door module |
| 13 | Rear climate control system |
| 14 | Rear left side light |
| 15 | Not used |
| 16 | Central high mounted stop – signal of the car |
| 17 | Rear right side light |
| 18 | Door locks |
| 19 | Tailgate module / driver seat module |
| 20 | Not used |
| 21 | Locking the doors |
| 22 | |
| 23 | Not used |
| 24 | Unlocking doors |
| 25 | Not used |
| 26 | Not used |
| 27 | Not used |
| 28 | Ventilation hatch |
| 29 | Not used |
| 30 | Parking lights |
| 31 | Vehicle body system controller additional electrical equipment |
| 32 | Car body system controller 5 |
| 33 | Windshield wipers |
| 34 | Stop – car signal |
| 35 | Transmission control module |
| 36 | Heating, ventilation and air conditioning “B” |
| 37 | Front side lights |
| 38 | Left turn signal |
| 39 | Heating, ventilation and air conditioning “1” |
| 40 | Car body system controller 4 |
Engine compartment
In the engine compartment, this box is located on the driver’s side. Remove the cover to access the unit.
Execution 1
Photo for example
Type 1
Type 2
Type 3
Your vehicle may not be equipped with all fuses, relays, or electrical appliances listed.
Designation
| VSES /ECAS | Compressor for automatic body position control |
| IGNA | Ignition |
| IGNB | |
| LBEC 1 | Left electrical center of busbar architecture; left door modules; body systems controller; hazard warning light module |
| TRI PARK | Trailer parking lights |
| RR PARK | Right rear parking lights and side contour lights |
| LR PARK | Left rear parking lights and side contour lights |
| PARK LP | Parking light relay |
| STRTR | Starter relay |
| INT PARK | Interior lights |
| STOP LP | Stop lights |
| TVS WATT | Battery Power to the Body System Controller |
| SEOB2 | Additional headlights for off-road driving |
| 4WS | Not used |
| AUX PWR | Socket for connecting additional electrical equipment (in the center console) |
| PCM 1 | Powertrain control module |
| ETC/ECM | Electronic throttle control module; electronic brake module |
| IGN E | Dashboard; air conditioning relay; direction indicators / hazard warning lights; starter relay |
| RTD | Electronic suspension control system; automatic body position control system; exhaust gas aftertreatment system |
| TRLB / U | Trailer reversing lights |
| F/ PMP | Fuel pump motor (relay) |
| B/U LP | Reversing lights; automatic transmission shift lock system |
| RR DEFOG | Heated rear window |
| HDLP-HI | Headlamp high beam relay |
| PRIME | Not used |
| AIR BAG | Inflatable airbags |
| FRT PARK | Front parking lights and side contour lights |
| DRL | Daytime running lights (relay) (optional) |
| THIS IGN | Heated rear window relay |
| TVS IGN1 | Vehicle Body Systems Controller – Ignition |
| HI HDLP-LT | High beam (left headlight) |
| LH NUDE | Not used |
| DRL | Daytime running lights (optional) |
| RVC | Voltage regulation system |
| IPC /DIC | Dashboard; driver information center |
| HVAC /ECAS | Climate control system |
| CIG LTR | Cigarette lighter |
| HI HDLP RT | High beam (right headlight) |
| HDLP LOW | High beam (right headlight) |
| А / С СОМР | A / C compressor relay |
| А / С СОМР | Air conditioning compressor |
| TSMV | Transmission control module |
| RRWPR | Rear window cleaner / washer |
| RADIO | Audio system |
| SE0B1 | Medium electrical hub of bus architecture; electric heated rear seats; universal transmitter (optional equipment) |
| LO HDLP U | Low beam (left headlight) |
| BTSI | Automatic transmission shift lock system |
| CRNK | Starter system |
| LO HDLP RT | Low beam (right headlight) |
| FOG LP | Fog lamp relay |
| FOG LP | Fog lights |
| HORN | Horn relay |
| W/ SWASH | Windscreen and rear window washer pump relay |
| W/ SWASH | Windscreen and rear window washer pump |
| INFO | Infotainment system for rear passengers |
| RADIO AMP | Audio amplifier |
| RH HID | Not used |
| HORN | Sound signal |
| EAP | Circuit for electrical adjustment of the accelerator and brake pedals |
| I PASS | Not used |
| SBA | Emergency braking assistance system |
- ECM-B – Engine pump, PCM / VCM
- RR DEFOG – Heated rear window
- IGN-E – Auxiliary Fan Coil, A / C Compressor Relay Hot Fuel Module
- FUEL SOL – Fuel solenoid (for diesel)
- GLOW PLUG – Heated plugs (for diesel)
- HORN – Siren, lamps under the hood
- AUXFAN – Auxiliary fan
- ECM-1 – Injector, PCM / VCM
- А / С-1 – Air conditioner
- ENG-1 – Ignition Switch, EGR, Injection, Idle Speed Control Solenoid
- LIGHTING – headlights, panel backlight switch, fog lights, fuses
- WATT – Battery, fuse box bus
- IGN-1 – Ignition switch
- IGN-2 – Ignition switch
- BLOWER – Fan relays
- STOP / HAZ – Stop light
Execution 2
Diagram
Assignment
| 1 | Automatic body position control system |
| 2 | Right headlight (high beam) |
| 3 | Right headlight (low beam) |
| 4 | Trailer reverse signals |
| 5 | Left headlight (high beam) |
| 6 | Left headlight (low beam) |
| 7 | Windshield wiper |
| 8 | Automatic transfer case |
| 9 | Windshield washer |
| 10 | Powertrain control module, circuit B |
| 11 | Fog lights |
| 12 | Stop signals |
| 13 | Cigarette lighter |
| 14 | – |
| 15 | Circuit for electrical adjustment of the accelerator and brake pedals |
| 16 | Body systems controller; Ignition “1” |
| 17 | Starter |
| 18 | Airbags |
| 19 | Electric trailer braking system |
| 20 | Cooling fan |
| 21 | Sound signal |
| 22 | Ignition |
| 23 | Electronic throttle control module |
| 24 | Dashboard; driver information center |
| 25 | Automatic transmission shift lock system |
| 26 | Transmission control module |
| 27 | Reversing signals |
| 28 | Powertrain control module, circuit 1 |
| 29 | Oxygen concentration sensor |
| 30 | Air conditioning system |
| 31 | Vehicle body system controller 1 |
| 32 | Trailer |
| 33 | Anti-lock braking system |
| 34 | Ignition A |
| 35 | Fan motor |
| 36 | Ignition B |
| 37 | Not used |
| 38 | Rear window cleaner / washer |
| 39 | Fog lights |
| 40 | Sound signal |
| 41 | Fuel pump |
| 42 | Windshield washer |
| 43 | High beam headlights |
| 44 | Air conditioning system |
| 45 | Cooling fan |
| 46 | Headlamp control module |
| 47 | Starter |
| 48 | Control panel battery |
| 49 | Circuit for electrical adjustment of the accelerator and brake pedals |
| 50 | Trailer right turn signal |
| 51 | Trailer left turn signal |
| 52 | Hazard warning lights |
| 53 | Headlamp control module |
| 54 | Secondary air injection solenoid valve |
| 55 | Secondary injection valve |
| 56 | Secondary air injection pump |
| 57 | Power unit |
| 58 | Dynamic stability system Stabilitrak |
| 59 | Voltage regulation system |
Do you want to update the material? Write in the comments.
I found the plug in for the obd sensor, but does not seem to have power. Is there a fuse for the obd sensor plug? 2003 chevrolet blazer. V-6 4×4 4 door. Same tool, same day, obd sensor plugged into 2000 chevrolet blazer works fine, that why I thought fuse!