P0424
Heated Catalyst Temperature Below Threshold Bank 1
P0424 is an OBD-II diagnostic trouble code meaning: Heated Catalyst Temperature Below Threshold Bank 1. Common causes: catalytic converter heating element malfunction, open or short circuit in the heater circuit. Estimated repair cost: $111–333.
Symptoms
- Increased fuel consumption
- Reduced engine power
- Unpleasant exhaust smell
- Check Engine Light Is On
Causes
- Catalytic converter heating element malfunction
- Open or short circuit in the heater circuit
- Malfunction of the catalytic converter temperature sensor
- Mechanical damage to the catalytic converter
- Wiring Harness Problems
How to Fix
- Check the condition of the catalytic converter
- Test the heating element circuit
- Replace faulty heating element
- Check and replace wiring harness if necessary
- Reset the error code and check if it returns
Related codes
Error P0424 by Vehicle Brand
FAQ
What does the P0424 code mean?
P0424 is an OBD-II diagnostic trouble code that indicates: Heated Catalyst Temperature Below Threshold Bank 1
What causes a P0424 error code?
The most common causes of P0424 include: Catalytic converter heating element malfunction; Open or short circuit in the heater circuit; Malfunction of the catalytic converter temperature sensor; Mechanical damage to the catalytic converter.
How do I fix a P0424 diagnostic trouble code?
To fix P0424: Check the condition of the catalytic converter. Test the heating element circuit. Replace faulty heating element. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0424?
Limited driving only, diagnose soon
How much does it cost to fix P0424?
The estimated repair cost for P0424 is $111–333. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat