HO2S (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)
symptoms
Other than the MIL light illuminating you may not notice any performance issues.
cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM
The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 2 sensor 1, O2 sensor
Replace PCM if circuit has failed and no wiring issues present, good O2 sensor
Trouble code P0051 means:HO2S heater control circuit low (Bank 2 Sensor 1)
Trouble code P0340 means:Camshaft position sensor circuit malfunction
Trouble code P1391 means: Intermittent loss of CMP or CKP
Trouble code P0456 means: EVAP Control System Very Small Leak (0.020") Detected
Evaporative Emission Control System Purge Control Valve Circuit Malfunction.
Trouble code P1694 means: No CCD message from PCM- Aisin transmission
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Nothing. All of the diagnostic codes consist of 2 digits. 'Code 3' must be incomplete.
The Ford diagnostic code 316 is a misfire detected at engine start up.
buy a book like Chilton, and it has all the diagnostic codes listed in it. buy a book like Chilton, and it has all the diagnostic codes listed in it.
Code P0780 means: A/T Concerns
Trouble code P0700 means:Transmission control system malfunction
misfire cylinder #5