Engine-Codes - Generic - P1198

P1198 Code - O2S Heater Circuit Bank 1 Sensor 2 Electrical Malfunction

- Code Popularity: 24,261 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1198?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty O2 Sensor
  • O2 Sensor harness is open or shorted
  • O2 Sensor circuit poor electrical connection
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How to Fix the DTC P1198?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1198 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1198 Code Mean?

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
P1198 Code - O2S Heater Circuit Bank 1 Sensor 2 Electrical Malfunction

Need more Information on the Code?

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Code P1198 Information for Specific Makes

  • P1198 Audi O2S Heater Circuit Bank 1 Sensor 2 Electrical Malfunction
  • P1198 BMW Differential Pressure Sensor Intake Manifold Signal
  • P1198 Buick Exhaust Gas Temperature Sensor 5 Performance Engine Running  📷
  • P1198 Cadillac Exhaust Gas Temperature Sensor 5 Performance Engine Running  📷
  • P1198 Chevrolet Exhaust Gas Temperature Sensor 5 Performance Engine Running  📷
  • P1198 Chrysler Radiator Temp Sensor Input Too High
  • P1198 Dodge Radiator Temp Sensor Input Too High
  • P1198 Ford Pump Rotor Control Underfueling
  • P1198 GMC Exhaust Gas Temperature Sensor 5 Performance Engine Running  📷
  • P1198 MINI Differential Pressure Sensor Intake Manifold Signal
  • P1198 Volkswagen O2S Heater Circuit Bank 1 Sensor 2 Electrical Malfunction

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