Hi
I have problem with 2008 Chevrolet Optra\Nubira:  One per month this car come to my garage with DTC C0035 (Left Front Wheel Speed Sensor Circuit).
I change:
1.LF Speed Sensor
2. I change wiring from WSS to ABS module
3.EBCM module
OEM parts.
I check:
1.LF WSS waveforms (look good Like the other) no RF
2.RR WSS check with the scan tool look good.
3. check all tire profile and tire pressure look good.
4. I drive with scan tool (tech 2) and look on 4 WSS PID look good.
Is someone have same idea  

Thanks
shay

Maybe an idea to swap the wiring from the NSF & OSF wheel speed sensors over & see if the fault follows the sensor or remains with the controller.

A road test with Pico connected to each front sensor might reveal something too. I have no knowledge of this vehicle, but if it is an old style analogue (passive) sensor, then I wouldn't rely on spinning the wheel by hand, to make a judgement.

Can you post some waveforms?