Mitsubishi Pajero 3rd generation was produced in 1999, 2000, 2001, 2002, 2003, 2004, 2005 and 2006. During this time, the model has undergone restyling. In some countries it is known as Mitsubishi Montero 3. In our material we will show the general location of electronic control units, describe in detail the fuses and relays of Mitsubishi Pajero 3 with block diagrams and photo examples of execution. We will highlight the fuse responsible for the cigarette lighter.

There may be differences between the material presented and your Mitsubishi Pajero (Montero) 3, depending on the region of delivery and the level of equipment. Check the designation with your diagrams on the back of the protective cover.

Block arrangement

General layout of control units

Marking

1Air temperature sensor supplied from the instrument panel ventilation grille
2Intake air temperature sensor (air conditioner/heater)
4Air conditioner/heater fan motor control unit (manual temperature control)
5Air conditioner/heater fan control unit – rear
6Sunlight sensor (air conditioning system)
7Antenna block
8Impact sensor (airbag), left front
9Impact sensor (airbag), right front
10Side impact sensor, driver’s side – under the front seat
11Side impact sensor, passenger side – under the front seat
12Rechargeable battery
13Diagnostic Connector (DLC) 1 – 2.5D (4D56) (2002^)
14Diagnostic Connector (DLC) 1 – 3.5 (6G74) /3.2D (4M41)
15Diagnostic Connector (DLC) 2 – 2.5D (4D56) (2002^)
16Diagnostic Connector (DLC) 2 – 3.5 (6G74) /3.2D (4M41)
17Differential lock control unit – rear
19Coolant heater relay 1
20Engine oil level sensor relay
21Engine oil level sensor
224WD electronic control unit
23Fuse/relay block, engine compartment 1
24Fuse/relay block, engine compartment 2
25Fuse/relay block, engine compartment 3
26Fuse/relay block, engine compartment 4
27Fuse/relay block instrument panel
28Heater fan motor resistor
29Heater outlet temperature sensor
30Heater radiator temperature sensor
31Horn 1 – behind the front bumper
32Horn 2 – behind the front bumper
33Electronic immobilizer control unit
34Immobilizer control unit – 2.5D (4D56T)
40Transfer case control unit
41Electronic gearbox control unit

Cabin block

Located under the driver’s dashboard.

Fuse description

115A Rear window wiper glass
2Reserve
310A Radio, Audio
415A Cigarette lighter
510A Air conditioning system, ABS system, emergency braking system, fuel filter heater, windshield heater, multifunction control unit 1, transfer case control unit
610A Cruise control system, exhaust gas recirculation (EGR) system, instrument cluster, immobilizer 2^ (4D56T), differential lock control unit, 4WD electronic control unit, SRS system, throttle control solenoid valve, vehicle speed sensor
720A Engine control
810A Reversing lights
910A Rear fog light
1020A Central locking
1130A Rear window heater
1230A Heater
1320A Roof hatch
1410A ABS
1520A Heated seats
1610A Heated mirrors
17Reserve
18Reserve
19Reserve
20Reserve

Fuse number 4 at 15A is responsible for the cigarette lighter. There is also a fuse in the block under the hood responsible for the cigarette lighter.

Relay decoding

  1. Rear fog light relay
  2. Electric window lifter relay
  3. Generator relay
  4. Heater fan motor relay – rear air conditioning
  5. Rear window heater relay
  6. Heater fan motor relay – front air conditioning
  7. Auxiliary ignition circuit relay

Blocks under the hood

Main unit

The main unit with fuses and relays is located next to the battery.

Appointment

R1A/C Condenser Fan Motor Relay – High Speed
R2Horn relay
R3A/C condenser fan motor relay – low speed
R4Multifunctional control unit 1
R5Windshield Defroster Relay – Windshield Wipers
R6Air conditioner compressor electromagnetic clutch relay
R7Reserve
1120A Fuse/relay block 1 in engine compartment, fog lights, headlights, tail lights (2001), multifunction control unit 1 (2002^)
260A Fuse/Relay Block, Engine Compartment 1
340A Ignition switch
440A Electric seats, electric window lifters
520A Engine control
620A Engine control
7–
815A Additional equipment
925A Fuel filter heater
1025A Air conditioner
1120A Air conditioner
1215A Windshield Defroster Relay – Windshield Wipers
13–
1420A Automatic transmission
1510A Generator, central locking, turn signals/emergency alarm
1615A Anti-lock braking system (ABS), brake lights
1710A Audio system, cigarette lighter , clock
1810A Air conditioning system, audio system, central locking, clock, ESP electronic control unit, interior lights, multifunction control unit 1, transfer case control unit
1910A Air conditioner
2020A Fog lights
2110A Audible signal
2220A Windshield wiper/washer
2310A Engine management system, rear (right)
2410A Rear left side marker lamp
2510A Low beam bulb (left)
2610A Low beam bulb (right)
2710A High beam bulb (left)
2810A High beam lamp (right)
29Reserve
3040A Coolant heater

Fuse number 17 at 10A is responsible for the additional cigarette lighter sockets.

Relay block

Scheme

Description

  1. Fuel pump relay that pumps
  2. Injector relay
  3. System relay (emergency braking)
  4. Reserve
  5. Engine control system relay
  6. Throttle control unit relay
  7. Reserve

Individual fuses and relays can be installed outside these units, for example, a relay for the pump motor or the ABS emergency braking system. Also, high-power fuses can be installed on the positive terminal of the battery: 40/60A – ABS and 80A – Glow plugs.