I have 2009 Volkswagen Jetta TDI diesel 2.0L, they saying this car required CAN bus system instead kwp2000.
My question is:
How does the protocol Id change? Maybe ECU is defective? Some people told me that OBD2 talking with different module from ECU.
from the car:
Protocol: KWPS8FE9 ( should be CAN ) ECU Address(es): 1A CAL ID(Calibration ID): 02F300050D 1402 ( they say wrong CAL ID ) CAL CVN(Calibration Verification Number): 21DB ( they say wrong CAL CVN )
If you look at those monitors not supported.
OBDII Readiness Monitor Details:
Misfire Monitor Supported: N Fuel System Monitoring Supported: N Component Monitor Supported: Y Catalyst Monitor Supported: N Heated Catalyst Supported: N EVAP System Supported: N Miss Monitor Ready: NS Fuel System Monitor Ready: NS Component Monitor Ready: NS Catalyst Monitor Ready: NS Heated Catalyst Monitor Ready: NS EVAP Monitor Ready: NS
How is it possible ECU unit created not belong to this vehicle CAL ID (Calibration ID): 02F300050D 1402 and CAL CVN (Calibration Verification Number): 21DB ?
Could it miscommunicate protocol KWP instead of CAN protocol ?