inst cluster swap - 99 cobra in a 00 GT

[cobrajeff00]

I bought a speedo cluster unit from a 99 Cobra, it has the 150mph speedo in it. I want to replace my stock GT cluster that only goes to 140. I have 2 questions: #1 - Aside from physical replacement of the cluster, what else must be done - do I have to recalibrate the speedo ?
#2 - The cluster shows about 20k more miles than what my GT has. What part of the electronics controls the odemeter ? Is that contained in the cluster or the computer ?

 

[Mike97gt]

), before it can be used to start the engine. There are special diagnostic procedures outlined in the workshop manual that must be carried out if new encoded ignition keys are to be installed.

The encoded key is larger than a traditional ignition key. The key does not require batteries and should last the life of the vehicle.

The transceiver module communicates with the encoded ignition key. This module is located behind the steering column shroud and contains an antenna connected to a small electronics module. During each vehicle start sequence, the transceiver module reads the encoded ignition key identification code and sends the data to the instrument cluster.

The control functions are contained in the instrument cluster. This module carries out all of the PATS functions such as receiving the identification code from the encoded ignition key and controlling engine enable. The instrument cluster initiates the key interrogation sequence when the vehicle ignition switch is turned to RUN or START.

The PATS uses the PCM to enable or disable the engine. The instrument cluster communicates with the PCM over the SCP network in order to enable engine operation. The instrument cluster and the PCM use sophisticated messages in order to prevent a theft. The instrument cluster and the PCM share security data (when first installed together) that makes them a matched pair. After this security data sharing, these modules will not function in other vehicles. The shared PCM ID is remembered even if the battery is disconnected. The instrument cluster also stores the vehicle's key identification code even if the battery is disconnected. There are special diagnostic procedures outlined in this workshop manual that may be carried out if either a new instrument cluster or PCM needs to be installed.

All elements of PATS must be functional before the engine is allowed to start. If any of the components are not working correctly, the vehicle will not start.

PATS uses a visual theft indicator. This indicator will prove out for three seconds when the ignition switch is turned to RUN or START under normal operation. If there is a PATS problem, this indicator will either flash rapidly or glow steadily (for more than three seconds) when the ignition switch is turned to RUN or START. PATS also "blips" the theft indicator every two seconds at ignition OFF to act as a visual theft deterrent.

The PATS is not compatible with aftermarket remote start systems, which allow the vehicle to be started from outside the vehicle. These systems may reduce the vehicle security level, and also may cause no-start issues. Remote start systems must be removed before investigation of PATS-related no-start issues.

this is way i think it's a bad idea too swap clusters..

 

[cobrajeff00]

i noticed that page in the manual states that there are directions from replacing the cluster. What are my chances of getting these or getting a manual ?

 

[Mike97gt]

i have access too the whole manual and i have replaced the cluster.. ( broken stock ones with stock replacements) we get them already programmed as far as mileage and stuff.. then we use the wds too transfer the pats and other as built data

when you replace the cluster you need too programm the info from the old one into it or programm your as built data..

if i was you i would call around some mustang shops that do chip burning and such they may be able too point you int he right direction..

it is possible too use that cluster.. wirring and such apears too be the same in the diagram but your going too need some sort of scan tool too program it.. and a custom tune too make that 150 speedo work right..

another option is call your local ford dealer and find out what electronics company they get the clusters from.. i am almost 100 percent sure they come from a outside electronics repair company that ford contracts too do the work..

if you have no luck with your ford dealer there is a parts manager on modulardepot that goes by the name randy sithcomb or somthing like that.. find him and ask him about this.

 

[Saint570]

I've done an 01 Cobra cluster swap onto my 00GT. It is possible. PATS has to be reprogrammed to accept your keys though. Mine works wonderfully and is accurate.

 

[urban96]

I've done an 01 Cobra cluster swap onto my 00GT. It is possible. PATS has to be reprogrammed to accept your keys though. Mine works wonderfully and is accurate.

did you reprogram hta pats yourself? if not how much did the dealership charge?