BMW fault 2E60 - HPFI control unit (internal communication)

2E60 is set by DME2 when the HPFI control unit reports a CAN configuration mismatch. DME2 sends configuration data to the HPFI ECU via CAN and compares it against what the HPFI ECU reports back.

DME2 detected that the configuration data the HPFI ECU received does not match what was transmitted, indicating a communication integrity failure. Monitoring runs with terminal 15 on and battery voltage between 9.5-17.9V.

• Check engine light on after the second drive cycle.
• Possible rough running or misfires on bank 2 cylinders.
• In some cases logged without noticeable driveability symptoms.

• Faulty HPFI control unit with internal processor or memory fault causing data corruption.
• CAN bus wiring damage between DME2 and HPFI ECU causing data corruption.
• Poor pin contact on the HPFI ECU CAN bus connector.
• Corrupted DME2 software sending malformed configuration data.

Replace the HPFI control unit if wiring checks pass and DME2 software is current. The replacement unit requires programming via ISTA P. Clear all faults and test drive over at least two drive cycles to confirm the MIL does not return.