P0425
Catalyst Temperature Sensor Circuit Bank 1 Sensor 1
P0425 is an OBD-II diagnostic trouble code meaning: Catalyst Temperature Sensor Circuit Bank 1 Sensor 1. Common causes: open or short circuit in the sensor wiring harness, malfunction of the catalyst temperature sensor. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable idling
Causes
- Open or short circuit in the sensor wiring harness
- Malfunction of the catalyst temperature sensor
- Poor contact in the sensor connector
- Problems with the ECU
How to Fix
- Check the integrity of the sensor wiring harness
- Check the resistance and signal of the temperature sensor
- Clean or replace sensor connector
- If necessary, replace the catalyst temperature sensor
- Check and reflash the ECU if a software error is suspected
Related codes
Error P0425 by Vehicle Brand
FAQ
What does the P0425 code mean?
P0425 is an OBD-II diagnostic trouble code that indicates: Catalyst Temperature Sensor Circuit Bank 1 Sensor 1
What causes a P0425 error code?
The most common causes of P0425 include: Open or short circuit in the sensor wiring harness; Malfunction of the catalyst temperature sensor; Poor contact in the sensor connector; Problems with the ECU.
How do I fix a P0425 diagnostic trouble code?
To fix P0425: Check the integrity of the sensor wiring harness. Check the resistance and signal of the temperature sensor. Clean or replace sensor connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0425?
Limited driving only, diagnose soon
How much does it cost to fix P0425?
The estimated repair cost for P0425 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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