P0435
Catalyst Temperature Sensor Circuit Bank 2 Sensor 1
Generic code
Auxiliary Emissions Control
Medium severity
Moderate repair
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What P0435 means
- The fault code P0435 indicates that there is a problem with the catalyst temperature sensor circuit for bank 2. This may cause the vehicle to fail emissions tests or have reduced engine performance.
Possible symptoms
- Check engine light is illuminated
- Reduced engine performance
- Vehicle may fail emissions tests
Possible causes
- Failed catalyst temperature sensor
- Wiring or connection issues in the circuit
- Corroded or damaged electrical connections
- Failed engine control module (ECM)
Related parts
- Catalyst Temperature Sensor: A catalyst is a chemical substance that takes the exhaust gas stream from the engine and converts toxic gases and pollutants to less harmful pollutants. The function of the catalyst temperature sensor is to warn the car computer if temperature of the catalyst goes above the safe limit. Problems lead to harmful emissions out of limit
Possible solutions
- Replace the catalyst temperature sensor
- Check and repair any damaged wiring or connections
- Clean any corroded or damaged electrical connections
- Replace the engine control module (ECM) if necessary
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P0435 on OBD DashX
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