P1198 Code - O2S Heater Circuit Bank 1 Sensor 2 Electrical Malfunction
Quick Answer
The diagnostic trouble code P1198 indicates an issue with the O2S (Oxygen Sensor) Heater Circuit for Bank 1 Sensor 2. Common causes include Faulty O2S Heater Circuit Bank 1 Sensor 2, Wiring or connector issues in the sensor circuit, Blown fuse related to the sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1198 indicates O2S Heater Circuit Bank 1 Sensor 2 Electrical Malfunction.
- Common causes
- Common causes include Faulty O2S Heater Circuit Bank 1 Sensor 2, Wiring or connector issues in the sensor circuit, Blown fuse related to the sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1198 Description
The diagnostic trouble code P1198 indicates an issue with the O2S (Oxygen Sensor) Heater Circuit for Bank 1 Sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust gases after they have passed through the catalytic converter. The heater circuit in the sensor helps it reach operating temperature quickly, allowing for more accurate readings. An electrical malfunction in this circuit can lead to inaccurate sensor readings, which can affect the vehicle's fuel efficiency, emissions, and overall performance.
Common Causes of P1198
- Faulty O2S Heater Circuit Bank 1 Sensor 2
- Wiring or connector issues in the sensor circuit
- Blown fuse related to the sensor
- ECM software or hardware issues
- Corrosion or damage to sensor connections
Symptoms of P1198
- Decreased fuel efficiency
- Rough idling or stalling
- Hesitation during acceleration
- Increased emissions
- Check Engine Light illuminated
How to Fix P1198
- Begin by diagnosing the O2S Heater Circuit Bank 1 Sensor 2 using a scan tool to confirm the code.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
- Check the fuse related to the sensor and replace if blown.
- Test the O2S Heater Circuit Bank 1 Sensor 2 for proper operation and replace if found to be faulty.
- Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1198
The typical repair costs for addressing an O2S Heater Circuit Bank 1 Sensor 2 electrical malfunction can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.
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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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