Diagrams of fuse and relay boxes – Chevrolet Lacetti

Applies to vehicles manufactured in the years:

2004, 2005, 2006, 2007, 2008, 2009.

Engine compartment

The main fuse box is on the left side between the battery and the coolant expansion tank.

Circuit breakers

Ef1 (30 A) – main battery (circuits F13-F16, F21-F24)  .

Ef2 (60 A) – ABS  .
See F11.

Ef3 (30 A) – heating fan
See F7.

Ef4 (30 A) – ignition (starter, F5-F8 chains) .

Ef5 (30 A) – ignition (circuits F1-F4, F9-F12, F17-F19) .

Ef6 (20 A) – cooling system fan (radiator) .

Ef7 (30 A) – rear window heating .
See F6.

Ef8 (30 A) – high speed cooling fan (radiator)  .
See Eph6.

Ef9 (20 A) – power windows in the right front and rear doors  .
See F6.

Ef10 (15 A) – Electronic Control Unit (ECU), ignition coils, EGR valve  .

Ef11 (10 A) – main relay circuit, engine control module (ECM)  .

Ef12 (25 A) – headlights, dimensions .

Ef13 (15 A) – brake lights .

Ef14 (20 A) – power windows in the driver’s door .
See F6.

Ef15 (15 A) – high beam in headlights .

Ef16 (15 A) – sound signal, siren, mask limit switch .

Ef17 (10 A) – air conditioning compressor .
See F6.

Ef18 (15 A) – fuel pump .

Ef19 (15 A) – dashboard, electric folding mirrors, lamps for individual lighting in the cabin, common ceiling lighting in the cabin, lighting in the trunk, luggage compartment position limit switch  .
See F4.

Ef20 (10 A) – left headlight, dipped beam .

Ef21 (15 A) – electronic control unit (ECU), adsorption bleed valve, oxygen concentration sensors, phase sensor, cooling system fan (radiator)  .

Ef22 (15 A) – fuel pump, injectors, EGR valve  .

Ef23 (10 A) – left side light bulbs, license plate lamp, warning signal  .
See Eph12.

Ef24 (15 A) – fog lights .

Ef25 (10 A) – electric side mirrors  .
See F8.

Ef26 (15 A) – central locking  .

Ef27 (10 A) – right headlight, dipped beam  .
See Eph20.

Ef28 (10 A) – right side light bulbs, dashboard and center console lighting, radio lighting, clock  .

Eph29 (10 A) – reserve;
Eph30 (15 A) – reserve;
Ef31 (25 A) – reserve.

 

Relays

• 1 – dashboard and center console illumination relay  .
• 2 – horn relay  .
  See Eph 16.
• 3 – main ignition relay  .
  Check fuse Ef5.
• 4 – headlight relay in headlights  .
• 5 – fog lamps relay  .
  See Eph24.
• 6 – air conditioning compressor clutch  .
  See F6.
• 7 – fuel pump, ignition coils  .
  See Eph18.
• 8 – electric windows  .
• 9 – low speed of the fan (radiator) of the cooling system  .
  See Eph6.
• 10 – rear window heating  .
  See F6.
• 11 – high speed fan (radiator) of the cooling system  .
  See Eph6.

Passenger compartment

Fuse box

It is located on the left side at the end of the dashboard.

Description

F1	10A – Electronic airbag control unit
F2	10A – Electronic engine control unit, automatic transmission electronic control unit *, generator, vehicle speed sensor
F3	15A – Emergency stop switch, direction indicators
F4	10А – Instrument panel, electronic dipped beam headlamps *, horn, brake signal switch, electronic steering gear control unit with variable effort *, air conditioning switch *
F5	Reserve
F6	10А – Air conditioning compressor enable relay, rear window heater enable relay, power windows switch relay, headlight switch relay
F7	20А – Electric air conditioning fan switch on relay, air conditioner switch, air conditioning system *
F8	15A – Electric mirror switch, electric folding mirrors *, electric sunroof *
F9	25А – Wiper gear motor, wiper mode switch
F10	10А – Speakerphone
F11	10A – ABS control unit. ABS executive unit
F12	10А – Immobilizer, electronic anti-theft alarm system, rain sensor
F13	10A Automatic gearbox control unit *
F14	15A – Alarm switch
F15	15A – Electronic anti-theft alarm system
F 16	10A – Diagnostic connector
F17	10A – Audio system, clock
F18	15А – Additional socket
F19	15A – Cigarette lighter fuse
F20	10A – Reverse light switch, automatic transmission mode selection *
F21	15А – Rear fog light switch relay, relay for lighting devices and controls, side lighting
F22	15A – Clock, air conditioning *, air conditioning switch *
F23	15A – audio system
F24	10А – Immobilizer

 

Relay

They are mounted on a special bracket located under the dashboard near the pedals. Accessing them is extremely difficult. First you need to open the trinket box and unscrew the two screws with a screwdriver.

Then, overcoming the resistance of the three clips, remove the lower trim from the dashboard, release it from the bonnet lock drive and remove it completely.

In the space that opens, you need to find the desired bracket.

Description

1. battery protection system control unit;
2. turn signal interrupter;
3. relay for turning on the fog light in the rear lights;
4. starter lockout relay (for vehicles with automatic transmission).