TVR Chimaera & Griffith

Buy Online

Reprograming Alarm with standard TVR fobs - more info/buy online Reprograming Alarm with standard Meta fobs - M99T or M99T2 Locating Meta M99 Alarm ECU for re-coding If the code card is lost or you do not have a working remote we can now re-code the M99T or M99T2 alarms which were fitted as standard to many TVR's. Either version of the Meta M99 can be fitted to TVR models depending on year of manufacturer etc.

The Meta M99 alarms on Chimaeras and some Griffiths are located under the top dash, the alarm can be found in the drivers kick panel on Tuscan models. To remove the top dash cover find the three 10mm nuts found on the underside of the dash. Unscrew the glove box in the passenger's side and the first 2 nuts are found here located where the red circle show. The 3rd nut is on the drivers side, indicated by the red circle and found by placing your hand up near the hood release cable. Be careful when you remove the top, so that the studs do not mark the leather. The alarm is found in the passenger's side corner (see photo above).

As most TVR's are also fitted with the M36 immobiliser it is not possible to replace the M99 with another unit or even replace the M36 as these are digitally linked to each other, as such in most circumstances cannot be coded to another device, if either of the items are replaced they will funtion as individual systems. Only re-programming the alarm will guarantee that both M99 & M36 will continue to function with each other. For more information call the office.

We can reprogram both M99 versions with two new round remotes plus a new codecard for programing more remotes in the future & complete with a M99 user guide. The cost is £99, this includes next day delivery back to you before 1PM.

Send the alarm brain to:

  • Abacus Car Alarms
  • 206 Leigham Court Road
  • London
  • SW16 2RB

Don't forget to include your details including your phone number.

Once coded with two new fobs the alarm will be checked on our test bench, once the alarm is tested ok we will contact you for payment. If paying by cheque there will be a minimum delay of six days for it to clear before unit is sent back to you.

For a fast turnaround please send via next day Special Delivery (a reprogramed alarm by us is usually returned within 2 working days - weekends will take longer)

Buy Online

M99T2 & M36T2 Technical Information

The Meta M36T2 is a Thatcham Cat 2 approved immobiliser, the unit interrupts two circuits so rendering the vehicle immobile. The starter motor and the fuel pump circuits are cut and by-passed through the M36T2, once a valid Meta touchkey (model number RK36S) is inserted into the socket the M36 un-immobilises allowing the vehicle to be started. If the vehicle is not started or the ignition not switched on within 15 seconds the immobiliser will re-arm. The M36T2 comes pre-programmed with two RK36S touchkeys, a total of 5 keys can be coded in, once this limit is reached further keys cannot be coded & the immobiliser will need to be removed or replaced. If the M36 has been paired with a M99T2 alarm (see below), the M99T2 can be re-coded with new fobs and will control the M36.

A new M36T2 only has space for three extra touchkeys. If the M36T2 is paired with a M99 alarm system another position of the 5 space memory is used up. Once a RK36S touchkey is coded into the unit it cannot be coded to another M36T2. Do not purchase second hand or previously used touchkeys - they will not work. To code in a new RK36S a working RK36S is required, without which it is not possible and the immobiliser will have to be replaced or removed unless paired with the M99T2.

The M36T2 fitted to many TVR vehicles is paired to a M99T2 alarm system as standard. The connection between the two is via a digital link and once paired the M99T2 can never be paired with another M36T2. The M36 can be paired to another M99T2 providing a working touchkey is available and a memory space is free. There is no way to determine how many spaces are free or used up.

Complete Replacement M99 & M36 system

If you want to keep the full functionality of the alarm system for your TVR we can now supply a complete replacement M99T alarm ECU (or the later M99T2) & M36T2 immobiliser pre-programmed self fit kit, complete with two M300 (TVR style) remote fobs, codecard & two STK1 (immobiliser touchkeys). This kit is supplied on an exchange basis for the M99 alarm, the old M36 cannot be repaired & has no value (please discard responsibly). The M99 is a simple plug & play swap over but the M36 requires soldering to the plug fitted to the original immobiliser (instructions supplied), if you've ever done some soldering this should not be very difficult. 

This is a direct replacement and keeps the originality of the TVR (the only difference to the original system is the TVR logo is missing from the press button of the M300 fob)

Buy Online

Replacement M99 Sirens

Replacement SC1 siren for the M99T2 only

More Info/Buy online

Meta M11a siren for the M99T only (no longer available)

Replacement battery backed Up siren for the M99T

(replaces the M11a siren)

Buy Online