RZ RIIC_EepRead R_RIIC_Write

Hi, 

I have a card where the e2prom memory in an i2c bus or a touch controller in another i2c bus may not be mounted.
In this case also the pullup resistors are not mounted.
In this condition the reading from the i2c bus does not return any error, neither the RIIC_EepRead () function nor the R_RIIC_Write (), R_RIIC_SendCond () functions, etc.
Is there a way to detect this condition (SDA and SCL lines always low?)
I need to detect the presence of the component during testing.