DTC U0416 Dodge
HO2S-12 (Bank 1 Sensor 2) Circuit High Input
HO2S-12 (Bank 1 Sensor 2) Circuit High Input
Description
DTC P0101-P0103, P0107, P0108, P0112, P0113, P0116-P0118, P0121-P0125, P0128, P0201-P0206, P0410, P0440, P0442, P0443, P0446, P0449 and P1441 not set, A F ratio at 12.0-16.5:1, TP angle from 3-35%, Air Pump off, and the PCM detected the HO2S signal was over 975 mv for 45 seconds or it was more than 200 mv during Decel Fuel Cutoff mode.
Cause and Solution
Fuel system is too rich (fuel pressure too high, fuel pressure regulator leaking, or one or more fuel injectors sticking leaking)HO2S element is silicon, water or fuel contaminatedHO2S signal circuit is shorted to system power (B+)HO2S signal tracking (water intrusion) in the connector causing a short between the HO2S signal and heater power circuitsPCM has failed
Video Guide
Diagnostic Info
- DTC Code: U0416
- Brand: Dodge