OBD program application notes

OBD through m.y. 2000 - VIN 8N_Y0400001 

Always confirm vehicle VIN and instrument cluster software version as per section title above. Confirm instrument cluster software version by initiating OBD program and reading information in display. Refer to Instrument cluster On Board Diagnostic (OBD), initiating  .

Information in this section also applies to replacement instrument clusters with software version D26 installed in vehicles through VIN 8N_Y040000.

Vehicles from start of production through VIN 8N_Y040000 contain instrument clusters with software versions through D24 have limited Diagnostic Trouble Code (DTC), Read Measuring Value Block and Adaptation information not specifically covered in this section.

Information on clusters on vehicles up to VIN 8N_Y040000 with software versions through D24 are contained in section "Instrument cluster On Board Diagnostic (OBD) through VIN 8N_Y040000 and software versions D24". Refer to Application notes  .

OBD from m.y. 2001 

OBD program information for instrument clusters from m.y. 2001. Refer to General Information  .

Message "dEF" on trip recorder display 

If the control module in the instrument cluster detects a malfunction in its permanent memory, the letters "dEF" will appear on the trip recorder display.

• If "dEF" appears on the display, replace the instrument cluster. Refer to Instrument cluster, removing and installing  .

Notes on replacing instrument cluster 

• The instrument cluster must not be disassembled.
• If necessary, the instrument cluster can be replaced with an exchange unit (where applicable).
• Complete the damage report form and return it together with the malfunctioning instrument cluster.
• Malfunctioning units must always be returned in their original packing.

• Various input values must be adapted to replacement speedometer. Refer to Replacement instrument cluster input values, adapting  .