Disco 2 Diff lock and TC

Gents
Looking for a Disco2 and i notice some of the earlier ones had a Diff Lock which was then dropped from the line and Landrover relied then purely on Traction Control.
My question is, do the early models fitted with the Diff Lock have the Diff Lock AND TC or is it one OR the other i.e. if it has a Diff Lock it will not have TC and if it has TC it will not have a Diff Lock?
Many thanks.
Nick.

i have the last of the range disco 2 54 plate and i have all three low with diff loct and hill decent and traction controle all as optional extras so they are available if you want them

Drewster
Many thanks for your reply.
If i may trouble you further,when you engage the diff lock does this turn TC and HD off? If TC worked with the diff locked it makes for a formidable off road machine.
Thanks.
Nick.

no

Mines only got TC/HDC and copes well off-road, the only real limitations so far being clearance under the front valance and the towbar acting as a ground anchor

Nick2506 said:

Drewster
Many thanks for your reply.
If i may trouble you further,when you engage the diff lock does this turn TC and HD off? If TC worked with the diff locked it makes for a formidable off road machine.
Thanks.
Nick.

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I could explain you this with my poor english so i better quote from RAVE Workshop manual... i think it's relevant enough just take into acount that a retrofitted CDL will work same as the original one u just have to cut a wire to avoid warnings

ETC(electronic traction control)
The ETC function uses brake intervention to prevent wheel spin and maintain even torque distribution to the wheels. ETC is automatically enabled while the brakes are off at speeds up to 62.5 mph (100 km/h), and operates the brakes either individually or in axle pairs:
- At speeds up to 31.3 mph (50 km/h), ETC uses individual brake intervention to maintain even torque distribution between wheels on the same axle.
- Vehicles up to 03 model year – At speeds between 0 and 62.5 mph (0 and 100 km/h), ETC also uses brake intervention in axle pairs to maintain even torque distribution between the front and rear axles. In effect, this mode of operation replaces the centre differential lock of the transfer box which, although still incorporated, is non operational under normal driving conditions.
If the centre differential lock is in the locked condition, the SLABS ECU illuminates the ABS and ETC warning lamps and inhibits the ETC function (the ABS, EBD and HDC functions are retained, but at degraded performance levels).
l Vehicles from 03 model year (with differential lock fitted) – At speeds between 0 and 62.5 mph (0 and 100 km/h), ETC uses brake intervention in axle pairs to maintain even torque distribution between the front and rear axles. If the centre differential lock is in the locked condition, the differential lock warning lamp in the instrument pack is illuminated. The ABS, EBD, ETC and HDC functions are retained, but with revised parameters to suit the locked differential. While the ETC function is enabled, if the SLABS ECU detects a wheel accelerating faster than the average, indicating loss of traction, it operates the ABS modulator in the active braking mode. Depending on the vehicle speed, active braking is employed for either the brake of the affected wheel or for both brakes on the affected axle, until all four wheels are driven at approximately the same speed again. During active braking the SLABS ECU also illuminates the ETC warning lamp, for a minimum of 2 seconds or for the duration that ETC is active. ETC operation is desensitised during 'hard' cornering.

how would ecu know diff was locked as theres no sensor as far as i know

jamesmartin said:

how would ecu know diff was locked as theres no sensor as far as i know

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Take a signal from electrical circuit when difflock light illuminated?

thats only on later ones were lr thought about it

jamesmartin said:

thats only on later ones were lr thought about it

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Typical LR, only ever half developing things til later on

true but t/c with diff lock is pretty formidable and easier than the 2 brake pedals i grew up with

all the transfer box's have the diff lock on them its only they are'nt connected why **** not! ?

no they dont theres quite a few with no internals or hole in casting for operating lever

jamesmartin said:

how would ecu know diff was locked as theres no sensor as far as i know

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The early ones with the CDL internals within but without the linkage (as mine was) they all have the switch from the beginning... some of them unplugged but everything is there ... i just connected the linkage and the difflock lamp came on...together with the ABS and TC warnings... untill i cut the wire from switch to ECU

jamesmartin said:

no they dont theres quite a few with no internals or hole in casting for operating lever

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well a mate has 1 and he had a gearbox failure and his tranbox even had the lever on it just no cennetion

some do ,but a lot dont ,seen more that dont

Many, many thanks for taking the time to help me, i am genuinely very grateful.
It would seem a nice 04 plate with cld is the way to go. I should add that as i travel in Scotland frequently it is heavy Snow that is my problem so maximum traction is what i am looking for.
Sierrafery.
Your English is a credit to you. Well done Sir.
Nick

now all you got to do is find a good one the later ones like mine (es premium manule )
are holding ther price well

drewster said:

now all you got to do is find a good one the later ones like mine (es premium manule )
are holding ther price well

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You trying to sell yours? :nospamhere:

BOOMER said:

You trying to sell yours? :nospamhere:

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i will sell anything if the price is right