Thread: Fitting a new BeCM info

Hello all, hope this helps. I have a friend in country WA who needed to change out a P38 Becm, came across a few urban myths before we found this. Looks like this is the way to do it. Hawkeye in this instance required. Apologies if its somewhere else on here. Info taken from the Hawkeye manual.
I have been told, once locked they cannot be unlocked so secondhand units not an option. Does anybody know if this is true? Any specialists able to unlock these?

EDCDiesel Control Module (Range Rover (P38A)

Read Security Code

This function is to be used when a new BeCM has been installed (see BeCMsection for

details). The security code displayed must be recorded, and entered intothe new BeCM

unit as the ‘Immob Code’ parameter.

This must be done BEFORE the BeCM is locked.

WARNING: Once locked a BeCM cannot be unlocked usingthe scan tool.

The engine will not start until both codes in the BeCM and EDC modulematch.

This function is only applicable to Range Rover (P38A) vehicles.

BECM- Body Control Module (Range Rover - P38A)

The following special functions are available for BeCM on the scan tool:

Programming

There are several configurable parameters on the BeCM. The scan tool canbe used to

alter these parameters.

Most parameters are functional, such as ‘Foglamps Fitted’, ‘SunroofFitted’. Other

parameters relate to the vehicle configuration, such as engine type,gearbox type.

Some parameters also relate to security, and hence can only be alteredon a new or

‘unlocked’ BeCM module.

The lock state of the module can be viewed under the Programming -Security selection,

but this parameter can only be changed from ‘Unlocked’ to ‘Locked’. Thisshould be

used when a new module has been installed and all parameters listedbelow have been

entered correctly.

WARNING: Once locked a BeCM cannot be unlocked usingthe scan tool.

Parameters only available under the ‘unlocked’ state are:

• VIN (last 6 digits).

• Immobiliser Code. For EDC and Motronic engine management systems, thismust be

entered into a new BeCM in order for the engine start synchronisation towork. For

EDC systems the code must be read from the EDC system using the scantool and

entered here. For the GEMS system any code can be entered here (0 -65535), but

after entry the ‘Learn Security’ option must be selected from the GEMSmodule on

the scan tool.

• EKA Code. The Emergency Key Access number for the vehicle. Must be a 4digit

number, each digit must be 1 - 6, all digits cannot be the same (e.g.2222).

• Fob Code. This is a three-part Fob codewhich is created from the 14-digit barcode

number found on the lockset and key fob. If a locksetis replaced a new Fob code

must be entered. This code can be obtained from Land Rover dealers, bysupplying

them with the 14-digit barcode number.

• ECU Lock Status: As mentioned previously this can only be changed from‘unlocked’

to ‘locked’. This should only be done when the correct VIN, Immob Code,EKA and

Fob Code have been entered.

Note: Anunlocked BeCM module will still function correctly when fitted to a vehicle.The

only side-effect of this is that diagnostics withcertain other modules (HeVAC) may be

impaired.

WARNING: Once locked a BeCM cannot beunlocked using the scan tool.

Hoges is right, i can unlock and reprogram them. do you know why a new one is necessary.