Electrical equipment and devices of car Chevy Trailblazer 1

Car electrical equipment — general information
The electrical system with grounding of the negative pole of the battery has a voltage of 12 V. The power source is an acid battery, recharged by a generator....

Determining the Causes of Electrical Circuit Faults — General Information
A typical circuit consists of electrical devices, switches, relays, fuses or fuse links, and wiring and connectors that connect the components to each other...

Fuses and links — general information
Fuses The electrical circuits of the car are protected by fuses, circuit breakers (reverse current relay) and fusible links. The main fuse/relay box is located...

Circuit breakers — general information and performance testing
Circuit breakers protect the power circuits of devices such as power windows or power seats. Depending on the vehicle's equipment, the vehicle may be equipped...

Relays — General information and performance testing
General information 1. In some electrical circuits, such as the fuel injection system, horn, starter and fog lamp circuits, current is supplied to the...

Turn Signal/Hazard Warning Light Circuit Breaker — Functional Test and Replacement
1. The direction indicators and hazard warning lights are controlled from a common electronic flasher switch, which is installed on the left under the...

Multifunction Switch Located on Steering Column — Replacement
Warning: The vehicles described in this manual are equipped with a Supplemental Restraint System (SRS), also known as an air bag system. Before carrying out...

Electronic Parking Mode Lock Switch — Replacement
Warning: The vehicles described in this manual are equipped with a Supplemental Restraint System (SRS), also known as an air bag system. Before carrying out...

Ignition Switch and Cylinder Replacement
Warning: The vehicles described in this manual are equipped with a Supplemental Restraint System (SRS), also known as an air bag system. Before carrying out...

Switches located on the instrument panel — replacement
Warning: The vehicles described in this manual are equipped with a Supplemental Restraint System (SRS), also known as an air bag system. Before carrying out...

Instrument cluster — removal and installation
Warning: The vehicles described in this manual are equipped with a Supplemental Restraint System (SRS), also known as an air bag system. Before carrying out...

Car radio and speakers — removal and installation
Warning: The vehicles described in this manual are equipped with a Supplemental Restraint System (SRS), also known as an air bag system. Before carrying out...

Antenna — removal and installation
1. Using a small open-end wrench, unscrew the antenna mast (see illustration). Be extremely careful - the key may slip and scratch the car body. To protect the...

Headlight bulbs — replacement
Warning: The halogen gas in the lamps is under high pressure. If the surface of the bulb is damaged or if it falls, the lamp may explode. When handling lamps,...

Main and fog lights — adjustment
Warning: The headlights must be adjusted correctly. Incorrectly adjusted headlights can blind the driver of an oncoming car or significantly limit visibility...

Headlight housing — removal and installation
1. Open the hood. When performing the procedure on a Chevrolet vehicle, it is necessary to remove the radiator grille ( see chapter 11 ). 2. Pull out the...

Replacing lamps
Warning: Lamps may remain hot for up to 20 minutes after being turned off. Before exposure, make sure that the lamp is turned off and has cooled down. Fog...

Windscreen wiper motor — checking functionality and replacement
Windscreen Wiper Motor Circuit Examination Note: For the following checks, refer to the relevant electrical diagrams to verify wire color identification and...

Sound signal — replacement
1. Remove the left cover (located on the driver's side) headlights ( see subsection 16 ). 2. Disconnect the ventilation hose from the battery tray. 3....

Daylight-Related Lighting (DRL) — General Information
The Daytime Running Light (DRL) system automatically switches on the low beam headlights when the engine is started. The headlights go out when the engine is...

Rear Window Defroster — Checking Performance and Repair
1. The rear window defroster consists of multiple horizontal heating elements fused to the glass surface. Power supply is provided through a large fuse located...

Speed Control System — Description and Functionality Check
1. The cruise control system ensures that the vehicle maintains a set speed. The system components include an electronic control unit (ECM), a servomotor, a...

Electric windows — description and performance check
1. Electric window lifters are designed to lower and raise window glass using electric motors installed in the door cavities. The system components include...

Electric door locks and keyless entry system — description and functionality check
1. Each door is equipped with electric locks. The system consists of switches, electric drives, a body equipment control unit (BECU) and wiring. As a rule,...

Electrically adjustable side mirrors — description
1. Electrically adjustable rear view mirrors have two electric motors for adjusting their position in two planes (up-down and left-right). 2. The switch has a...

Power Seats — Description
1. The electric drive allows you to adjust the position of the seats without applying any effort. These models feature electrically adjustable seats that can...

Data exchange system — description
1. The vehicles described have a complex electrical system, which includes many devices - energy consumers and several separate electronic units. 2. The main...

Airbag system — general information
1. All models covered by this manual are equipped with a supplemental restraint system (SRS), also known as an air bag system. The purpose of the system is to...

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