P0157moderate severityPowertrain
O2 Sensor Circuit Low Voltage Bank 2 Sensor 2
on 2015 Kia Forte 1.8L I4 · FWD
What this code means
Low voltage from the downstream O2 sensor on Bank 2.
Symptoms
- Check Engine Light
Common causes
- Faulty sensor
- Short to ground
- Exhaust leak
Diagnostic steps
- Test voltage
- Check for shorts
Repair notes
Replace sensor.
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P0001
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P0002
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P0003
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P0004
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P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1