Lexus NX: Rear Disc Brake Pad

 Catalyst System Efficiency Below Threshold (Bank 1) (P0420)

MONITOR DESCRIPTION The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the air fuel ratio sensor, sends pre-catalyst information to the ECM. The second sensor, the heated oxygen sensor, sends post-catalyst informat

 Operation Check

OPERATION CHECK HINT: The blind spot monitor beam axis confirmation is performed to confirm whether the sensor's beam axis is correct, and perform adjustment of the beam axis by using reflector. BLIND SPOT MONITOR BEAM AXIS CONFIRMATION (a) When performing the blind spot monitor beam axis confirmati