ABS/PSM Error Codes w Different ECU and Immobilizer

[geoffbaltz]

2002 Boxster S I’ve been building for the track. Previous owner swapped the ECU and the immobilizer from another car with a matching key.  Engine starts no problem. So the new ECU and alarm is working just fine. However, I have codes for ABS and PSM.  Fuse E9 is good. Does anyone know where the relay is that the Porsche repair manual mentions in troubleshooting the error codes?

 

ABS/PSM 5.7 Error Codes:

P4276 Valve supply voltage

 

Instrument Cluster K21 Error Code:

9111 PSM/ABS control unit

 

I’ve been doing a lot of research on the web about new ABS control modules. And them needing to be programmed to the ECU to match the VIN. Is this correct? And if so, can that be done within the Durametric?

Edited February 23 by geoffbaltz

[JFP in PA]

No, you need a PST II or PIWIS system.

[geoffbaltz]

So, these error codes would represent the need to program the ABS control module?  And I am correct that is what is going on here?

[JFP in PA]

These modules must be coded to the car as they can fit multiple vehicles.

[geoffbaltz]

@JFP in PA Thanks for the response.  I'll double check the voltage on terminal 6 but it looks like I will be searching for buddy with a PIWIS.