P0548
Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1
Generic code
Vehicle Speed and Idle Control System
Medium severity
Moderate repair
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What P0548 means
- The fault code P0548 indicates that there is an issue with the circuit that controls the exhaust gas temperature sensor for bank 2, sensor 1. This may cause the engine to run poorly or not start at all.
Possible symptoms
- Illuminated check engine light
- Poor engine performance or no start
- Reduced engine power or acceleration
- Increased emissions
Possible causes
- Faulty exhaust gas temperature sensor
- Damaged wiring or connections in the circuit
- Loose or corroded electrical connections
- Failed engine control module (ECM)
Related parts
- Exhaust Gas Temperature Sensor: Exhaust gas temperature sensor monitors the temperature of the exhaust gases. This car's malfunctioning valve will lead to higher emissions & lower performance
Possible solutions
- Replace the exhaust gas temperature sensor
- Check and repair any damaged wiring or connections
- Tighten or clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary
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P0548 on OBD DashX
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