Programming VF Cluster EEPROMs for the Holden VF Commodore
- Document Information
- Information on how to re-program VF Instrument Cluster EEPROMs
- Vehicle: Holden Commodore (VF)
- Copyright Owner: Matthew Jones (Matti Jones) (ZerOne)
- Document Visits: 8003
- Created: Mon Feb 03, 2014 8:21 pm
- Revised: Mon Feb 03, 2014 8:53 pm (Rev 8)
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The following document is considered a work in progress.
Because much of the useful information concerning memory locations used to store different cluster information is still not known,
it is recommended that you check the Technical Documents Discussion Forum for the latest information regarding this document.
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To reprogram the VF insturment cluster, the following tools are required,
A Windows PC (Or Linux PC If using a PonyProg2000 capable adaptor).
An EEPROM Programmer that can be used with 24C16 EEPROMS - $40.00AU (eBay).
A 3M 8 PIN SOP to 8 Pin DIP Clip Adaptor - $40.00AU (eBay)
Search eBay for a 3M 8 Pin SOP Clip
A VF Instrument Cluster
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The following guide assumes that you have already removed the Instrument Cluster from the vehicle.
In order to gain access to the Clusters EEPROM, you will need to remove the front plastic trim, clear lense assembly, and the back cover from the cluster.
To do this,
1) Locate the 4 Plastic Tabs located on th top of the instrument cluster used to hold the clusters forward facing trim parts in place.
Gently unclip these clips, and slowly pull the front trim peice of the cluster away from the back of the cluster.
2) Working your way around the cluster, locate the 2 Plastic Tabs located on either side of the instrument cluster, and unlcip these tabs, (slowly pulling the front part of the cluster away from the back main part).
3) Continue working your way around the cluster, and locate the plastic tabs located on the bottom side of the instrument cluster, and unlcip these tabs, (slowly pulling the front part of the cluster away from the back main part).
4) You should now be able to remove the front plastic fascia assembly from the instrument cluster.
5) Next locate the three clips at the top of the cluster used to hold the front lense assembly in place.
Unclip these tabs, and carefully pull the front lense assembly away from the back of the cluster.
6) Finally unclip the back cover panel from the cluster and remove to reveal the main cluster PCB.
7) Locate the 24C16 EEPROM. It should be labelled IC303 on the instrument cluster board.
The following images will give you a good indication of where the EEPROM is located.
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To read data from a Surface Mount EEPROM chip, you will need to use a 3M SOP to DIP adapter clip.
You will also require an EEPROM Programmer capable of reading and writing to 24C16 EEPROMs.
To connect the 24C16 EEPROM to the EEPROM Programmer, use the 3M 8 Pin SOP to 8 Pin DIP Adaptor, as shown above,
Please note : The orientation of the wire with the red stripe in the Image above (Bottom right hand side of the EEPROM).
This wire signifies Pin 1 on the EEPROM.
Next, connect the other side of the SOP connector to the EEPROM programmer, as shown in the following image.
Please note :Again, note the orientation of the wire with the red stripe in the Image above, as it connects to the EEPROM programmer.
This wire signifies Pin 1 on the EEPROM, which should be connected to Pin 1 on the EEPROM programmer socket.
NOTE: The EEPROM programmer should also be configured to use 3.3 Volts.
This setting will avoid blowing the EEPROM chip up if you get the Polarity round the wrong way.