2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts
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P102C
2A34 – P102C
Information saved in
DME
Fault code
2A34 – P102C
Fault text
Valvetronic, eccentric shaft sensor: reference
Fault description
VVT-Reference Sensor Diagnostic Error (Bank 1)
Condition for fault identification
Test condition:
Internal VVT reference sensor monitor
No faults related to the sensor voltage supply should be
present (fault code #10800) and there should be no faults or
SPI parity faults related to the VVT sensor (fault code
#10801) or (fault code #10802)
Terminal condition: Terminal 15 ON
Voltage condition:
Electrical system voltage terminal 87 >10.0 V
Condition for fault memory entry
20 ms
Action in service
Sensor replacement
Fault effect and breakdown warning
Driver information
Warning light:
ECE: No warning message. Engine reverts to VVT
emergency backup mode (throttled operation) US: OPEN
