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P0057

PowertrainOxygen Sensorlow severity

HO2S Heater Control Circuit Low Bank 2 Sensor 2

What P0057 Means

Low voltage in the Bank 2 Sensor 2 O2 heater circuit.

Symptoms

  • Check Engine Light

Common Causes

  • Short to ground
  • Faulty sensor

Diagnostic Steps

  1. Test voltage
  2. Check for shorts
Where to start: Repair or replace.

Related Codes

P0056P0058

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