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BECM Body Electrical Control Module

Some good BECM info resources can be found at:
http://www.rangerovers.net/repairdetails/becm/index.html

For a good connector pinout info go here:

A discution about BECM pinout and engine temp input:






BeCM pin-Out Information

The following tables show the BeCM inputs and outputs for the nineteen associated connectors.



1. Body electrical Control Module (BeCM)
2. Connector C325 (C1283) - 18 pin grey
3. Connector C323 (C1284) - 12 pin grey
4. Connector C324 (C1292) - 4 pin natural
5. Connector C120 (C1281) - 14 pin yellow
6. Connector C113 (C1282) - 10 pin yellow
7. Connector C626 (C1287) - 20 pin black
8. Connector C362 (C1286) - 16 pin black
9. Connector C326 (C1285) - 20 pin blue
10. Connector C114 (C1289) - 20 pin green
11. Connector C112 (C1288) - 16 pin green

From 99MY connector numbers and colour
differences shown in brackets
 
12. Connector C625 (C1290) - 12 pin white
13. Connector C361 (C1291) - 18 pin white
14. BeCM Fusebox
15. Connector C255 (C1279) - 20 pin white
16. Connector C256 (C1280) - 16 pin white
17. Connector C257 (C1278) - 20 pin yellow
18. Connector C907 (C1277) - 8 pin blue (black)
19. Connector C258 (C1276) - 10 pin white
20. Connector C912 (C0877) - 12 pin green
21. Connector C624 (C1293) - 4 pin natural




Connector 11

C112 (up to 99MY)


C1288 (from 99MY)







Pin No. Description Input/Output


1

Not used

-



2

Parking brake on

Output



3

Side/Tail door open

Output



4

Gearbox oil temperature (automatic models)

Input



5

Security code

Output



6 and 7

Not used

-



8

Ignition switch position I

Output



9

Engine speed

Input



10

ABS warning lamp and message

Input



11

Brake pressure (brakes on)

Input



12

Not used

-



13

Road speed

Output



14

Catalytic converter overheat (Japanese V8 models) or glowplug warning lamp (diesel models)

Input



15

Not used

-



16

Fuel level (V8 models)

Output

















Connector 6

C113 (up to 99MY)


C1282 (from 99MY)







Pin No. Description Input/Output


1

RH headlamp main beam (dual element bulb)

Output



2

Starter motor on

Output



3

RH headlamp dipped beam

Output



4

RH front direction indicator lamp

Output



5

RH headlamp main beam (auxiliary bulb)

Output



6

Headlamp wash/wipe

Output



7

Front wipers fast speed

Output



8

Front wipers slow speed

Output



9

RH front side lamp

Output



10

RH front fog lamp

Output

















Connector 10

C114 (up to 99MY)


C1289 (from 99MY)







Pin No. Description Input/Output


1

Low screen wash fluid level

Input



2

Inertia switch tripped

Input



3

Front wiper park switch

Input



4

Not used

-



5

Engine warning lamp

Input



6

Not used

-



7

Low engine oil pressure

Input



8

Air suspension wade warning lamp

Input



9

Air suspension messages 1

Input



10

Fuel level

Input



11

Road speed

Input



12

ETC messages and warning lamp

Input



13

Not used

-



14

Bonnet open

Input



15

Alternator charge

Input



16

Low brake fluid level

Input



17

Not used

-



18

Air suspension messages 2

Input



19

Engine coolant temperature

Input



20

Engine speed

Output

















Connector 5

C120 (up to 99MY)


C1281 (from 99MY)







Pin No. Description Input/Output


1

Ignition power supply (SRS DCU)

Output



2

Alarm sounder

Output



3

LH front fog lamp

Output



4

Rear screen washer pump

Output



5

LH front side lamp

Output



6

RH (direction indicator) side repeater lamp

Output



7

Horn

Output



8

LH headlamp main beam (auxiliary bulb)

Output



9

Ignition switch position II

Output



10

LH headlamp main beam (dual element bulb)

Output



11

LH headlamp dipped beam

Output



12

LH front direction indicator lamp

Output



13

Windscreen washer pump

Output



14

LH (direction indicator) side repeater lamp

Output

















Connector 15

C255 (up to 99MY)


C1279 (from 99MY)







Pin No. Description Input/Output


1

Rear fog lamps on/off

Input



2

Not used

-



3

Key in ignition switch

Input



4

Clutch pedal depressed (manual models)

Input



5

Not used

-



6

RH front seat heater on/off

Input



7

Hazard warning lamp telltale

Output



8

Diagnostic K line

Input/Output



9

Alternator charging (engine running)

Input



10

Road speed (to ATC ECU)

Output



11

Rear screen heater on/off

Input



12

Immobiliser passive coil supply

Output



13

Hazard warning on/off

Input



14

Cruise control on/off

Input



15

LH front seat heater on/off

Input



16

Not used

-



17

Diagnostic L line

Input/Output



18

Power to cruise control ECU, switch telltale and inverter/converter

Output



19

Not used

-



20

Road speed (to cruise control ECU)

Output

















Connector 16

C256 (up to 99MY)


C1280 (from 99MY)







Pin No. Description Input/Output


1

Instrument pack serial data bus (direction)

Output



2

Instrument pack serial data bus (clock)

Output



3

Instrument pack serial data bus (data, duplicate)

Output



4

Instrument dimming supply

Input



5

Instrument pack serial data bus (earth, duplicate)

Output



6

Rear fog lamp switch telltale

Output



7

Security LED

Output



8

Engine speed (to instrument pack)

Output



9

Instrument pack serial data bus (direction, duplicate)

Output



10

Instrument pack serial data bus (clock, duplicate)

Output



11

Instrument pack serial data bus (data)

Output



12

Instrument dimming supply

Input



13

Ignition switch position I

Input



14

Instrument pack serial data bus (earth)

Output



15

Instrument pack audible warning

Output



16

Road speed (to instrument pack)

Output

















Connector 17

C257 (up to 99MY)


C1278 (from 99MY)







Pin No. Description Input/Output


1

Rear screen washer on/off

Input



2

RH direction indicators on/off

Input



3

Headlamp dipped beam on/off

Input



4

Windscreen washer on/off

Input



5

Front wipers switch input 2

Input



6

Ignition switch position III

Input



7

LH direction indicators on/off

Input



8

Headlamp flash

Input



9

Side lamps on/off

Input



10

Front fog lamp switch telltale

Input



11

Wiper time delay

Input



12

Headlamps main beam on/off

Input



13

Rear wiper on/off

Input



14

Front fog lamps on/off

Input



15

Front wipers switch input 3

Input



16

Front wipers switch input 1

Input



17

Horn on/off

Input



18

Fuel filler flap release on/off

Input



19 and 20

Not used

-

















Connector 19

C258 (up to 99MY)


C1276 (from 99MY)







Pin No. Description Input/Output


1

Cruise control pump supply

Output



2

Illumination (clock, fascia switches, ATC ECU, instrument pack and radio cassette player)

Output



3

Illumination (front footwell lamps and ignition switch)

Output



4

Brakes on/off

Input



5

Illumination (glovebox lamp)

Output



6

Auxiliary power supply (ATC ECU and radio cassette player)

Output



7

Battery power supply (clock, radio cassette player and instrument pack)

Output



8

Ignition switch position II

Input



9

Ignition power supply (brakes, PAS, air suspension switches and ATC ECU)

Output



10

Ignition key inhibit - up to 97.5MY

Output

















Connector 3

C323 (up to 99MY)


C1284 (from 99MY)







Pin No. Description Input/Output


1

Ignition power supply (rear view mirror dip)

Output



2

Battery power supply (RH front door outstation)

Output



3

Trailer LH tail lamp

Output



4

Battery power supply (RH rear ICE amplifier)

Output



5

RH rear window down

Output



6

RH rear door marker (puddle) lamp

Output



7

Fuel filler flap release

Output



8

RH rear window anti-trap supply

Output



9

Sunroof anti-trap supply

Output



10

RH rear window up

Output



11

RH rear window switch illumination

Output



12

Battery power supply (RH front door outstation
(window))

Output

















Connector 4

C324 (up to 99MY)


C1292 (from 99MY)







Pin No. Description Input/Output


1

Sunroof backwards

Output



2

Rear screen heater

Output



3

Sunroof forwards

Output



4

Ignition power supply (sun visor)

Output

















Connector 2

C325 (up to 99MY)


C1283 (from 99MY)







Pin No. Description Input/Output


1

LH rear fog lamp

Output



2

LH reverse lamp

Output



3

RH rear fog lamp and trailer fog lamp

Output



4

RH rear direction indicator lamp

Output



5

Auxiliary power supply (aerial amplifier)

Output



6

RH rear door superlocking

Output



7

Rear screen wiper motor

Output



8

RH rear door locking

Output



9

RH reverse lamp

Output



10

RH tail lamp and trailer RH tail lamp

Output



11

RH rear, front and loadspace courtesy lamps

Output



12

RH brake lamp and trailer brake lamps

Output



13

Centre High Mounted Stop Lamp (CHMSL)

Output



14

Trailer LH direction indicator lamp

Output



15

Trailer RH direction indicator lamp

Output



16

Number plate lamps

Output



17

Battery power supply (front, RH rear and loadspace courtesy lamps, tail gate central locking, alarm RF receiver)

Output



18

RH rear door unlocking

Output

















Connector 9

C326 (up to 99MY)


C1285 (from 99MY)







Pin No. Description Input/Output


1

Rear wiper park

Input



2

Front courtesy lamp switch

Input



3

Tail door open

Input



4

Sunroof anti-trap 1

Input



5

RH rear window anti-trap 1

Input



6

Radio cassette remote on/off

Input



7

RH front window anti-trap 1

Input



8

RH rear window down

Input



9

RH front door serial data bus (clock)

Output



10

RH front door serial data bus (direction)

Output



11

Sunroof closed

Input



12

RH door mirror position

Input



13

RH rear door open

Input



14

Sunroof anti-trap 2

Input



15

RH rear window anti-trap 2

Input



16

RH front window anti-trap 2

Input



17

RH rear window up

Input



18

Not used

-



19

RH front door serial data bus (data)

Output



20

Reverse selected

Output

















Connector 13

C361 (up to 99MY)


C1291 (from 99MY)







Pin No. Description Input/Output


1

Auxiliary power supply (telephone)

Output



2

LH rear window up

Output



3

LH rear door marker (puddle) lamp

Output



4

Battery power supply (trailer)

Output



5

Trailer reverse lamps

Output



6

Battery power supply (LH rear courtesy lamp, LH loadspace lamp, sub-woofer amplifier and LH rear ICE amplifier)

Output



7

Battery power supply (LH front door outstation, window)

Output



8

Battery power supply (LH front door outstation)

Output



9

LH rear courtesy lamp

Output



10

LH rear window down

Output



11

Not used

-



12

LH tail lamp

Output



13

LH rear door unlocking

Output



14

LH rear direction indicator lamp

Output



15

LH rear door superlocking

Output



16

Illumination (LH rear window switch)

Output



17

LH brake lamp

Output



18

LH rear door locking

Output

















Connector 8

C362 (up to 99MY)


C1286 (from 99MY)







Pin No. Description Input/Output


1

LH front door serial data bus (data)

Output



2

LH rear window anti-trap 2

Input



3

LH front window anti-trap 2

Input



4

LH rear door open

Input



5

LH rear window anti-trap 1

Input



6

Movement detected (by volumetric sensor)

Input



7

LH rear window down

Input



8

LH door mirror position

Input



9

LH front door serial data bus (direction)

Output



10

LH front door serial data bus (clock)

Output



11

LH front window anti-trap 1

Input



12 and 13

Not used

-



14

LH rear window up

Input



15

Volumetric sensor power supply

Output



16

LH rear window anti-trap power supply

Output

















Connector 21

C624 (up to 99MY)


C1293 (from 99MY)







Pin No. Description Input/Output


1 and 2

Not used

-



3

Battery power supply (transfer box ECU)

Output



4

Not used

-
















Connector 12

C625 (up to 99MY)


C1290 (from 99MY)







Pin No. Description Input/Output


1

Ignition power supply (transfer box ECU)

Output



2

Ignition power supply (gear selector lever (automatic models))

Output



3

Ignition power supply (EAT ECU (automatic models))

Output



4

Transfer box neutral tow link

Output



5

Auxiliary power supply (cigar lighter)

Output



6

Shift interlock solenoid (automatic models)

Output



7

Battery power supply (EAT ECU (automatic models)

Output



8

Battery power supply (centre console switch pack)

Output



9 and 10

Not used

-



11

Interior illumination (centre console switch pack, cigar lighter and gear selector lever (automatic models))

Output



12

Rear footwell lamps

Output

















Connector 7

C626 (up to 99MY)


C1287 (from 99MY)







Pin No. Description Input/Output


1

EAT ECU diagnostic L line (automatic models)

Input/Output



2

Centre console serial data bus (direction)

Output



3

Transfer box high range

Input



4

Transfer box neutral

Input



5

Shift mode status 2 (automatic models)

Input



6

Transfer box over temperature

Input



7

Transfer box low range

Input



8

Gear position switch X signal (automatic models)

Input



9

Gear position switch Y signal (automatic models)

Input



10

Not used

-



11

Engine speed (to EAT ECU (automatic models))

Output



12

EAT ECU diagnostic K line (automatic models)

Input/Output



13

Centre console serial data bus (clock)

Output



14

Centre console serial data bus (data)

Output



15

Not used

-



16

Shift mode status 1 (automatic models)

Input



17

Handbrake on/off

Input



18

Gear position switch Z signal (automatic models)

-



19

Seat belt latched/unlatched

Input



20

Clutch pedal depressed (manual diesel models); ECM (automatic diesel models); gear selector lever park/neutral (NAS V8 models)

Output

















Connector 18

C907 (up to 99MY)


C1277 (from 99MY)







Pin No. Description Input/Output


1

RH front seat serial data bus (clock)

Output



2

LH front seat serial data bus (direction)

Output



3

LH front seat serial data bus (data)

Output



4

LH front seat position

Input



5

RH front seat serial data bus (direction)

Output



6

RH front seat serial data bus (data)

Output



7

LH front seat serial data bus (clock)

Output



8

RH front seat position

Input

















Connector 20

C912 (up to 99MY)


C0877 (from 99MY)







Pin No. Description Input/Output


1

RH front seat heater

Output



2

LH front seat heater

Output



3

RH front seat enable

Output



4

LH front seat earth

Input



5

RH front seat lumbar support

Output



6

LH front seat lumbar support

Output



7

LH front seat battery power supply 2

Output



8

LH front seat battery power supply 1

Output



9

LH front seat enable

Output



10

RH front seat earth

Input



11

RH front seat power supply 1

Output



12

RH front seat power supply 2

Output








ċ
Ricardo Simões,
21/03/2013, 04:38
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