HO2S Heater Control Circuit High (Bank 1 Sensor 2)
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 1 sensor 2, O2 sensor
Replace PCM if circuit has failed and no wiring issues present, good O2 sensor
Cylinder #4 misfire.
The key code is accessed by the dealer from their computer system.
TYPE 43 is the dash type its not a error code of any kind
what is this code p1491 on 2003 jeep liberty
Trouble code P0463 means: Fuel Level Sensor A Circuit High Input
trouble code p-0837 fo jeep liberty
Misfire code
The check engine light is reset with a scan tool after repairing the failure that caused the code.
With a scan tool after repairing the cause of the code.With a scan tool after repairing the cause of the code.
The transmission computer has also set a code, have the tcm checked.
Trouble code P0440 means: Evaporative Emission System
This code refers to the front oxygen sensor