How To Upgrade Or Recycle A GM IPC, Instrument Custer Speedometer Using GM DPS

Upgrading or recycling a GM IPC, aka Instrument Cluster/Speedometer.

The IPC is part of the IMMO/Immobiliser secured system, which stores both a VIN and a PIN. When upgrading or recycling a used secondhand IPC, you must perform a set of programming functions to get that IPC fully functioning in the intended vehicle. 

When replacing the IPC with a used secondhand part

1. You must change the VIN in the used IPC to match the vehicle's VIN. Otherwise, the IPC will not display the vehicle's mileage. You may receive a GDS2 DTC "Vehicle identification number not programmed".
2. You must change the PIN in the used IPC to match the vehicle's PIN. Otherwise, you cannot program the IPC via the GM SPS service.
3. You must use the GM SPS or DPS Type4 "Immobiliser Learn: (Engine Control Module And Body Control Module IMMO Learn)" function to remove and reprogram the vehicle's keys. Otherwise, you will receive a GDS2 DTC "incorrect immobiliser identifier".
4. You must use the vehicle's VIN and GM SPS service to program the correct calibration files and configuration setup settings onto the IPC.

When upgrading the stock low level IPC to a more advanced IPC (bigger screen etc)

1.  You must change the VIN in the used IPC to match the vehicle's VIN. Otherwise, the IPC will not display the vehicle's mileage. You may receive a GDS2 DTC "Vehicle identification number not programmed".
2. You must change the PIN in the used IPC to match the vehicle's PIN. Otherwise, you cannot program the IPC via the GM SPS service.
3. You must use the GM SPS or DPS Type4 "Immobiliser Learn: (Engine Control Module And Body Control Module IMMO Learn)" function to remove and reprogram the vehicle's keys. Otherwise, you will receive a GDS2 DTC "incorrect immobiliser identifier".
4. You must manually program the vehicle's correct model identifier and RPO codes into the upgraded IPC.

Solutions

• You can use my special DPS VIN change file service to change the VIN in IPC. Some already-made DPS VIN change files can be found in the Paid Downloads section.
• You can use my special DPS PIN change file service to change the PIN in IPC. Some already-made DPS PIN change files can be found in the Paid Downloads section.
• You can use these special DPS IMMO Immobiliser Learn Type4 App to program the vehicle's keys without having to use the GM SPS service.
• Click this link which has the tutorial demonstrating how to gather the files needed for modifying the IPC model identifier and RPO codes when upgrading an IPC.