P042D
Catalyst Temperature Sensor Circuit High Bank 1 Sensor 2
P042D is an OBD-II diagnostic trouble code meaning: Catalyst Temperature Sensor Circuit High Bank 1 Sensor 2. Common causes: short circuit in the temperature sensor circuit, malfunction of the catalytic converter temperature sensor. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Unstable idling
Causes
- Short circuit in the temperature sensor circuit
- Malfunction of the catalytic converter temperature sensor
- Wiring harness damage
- Problems with the engine ECU
- Corrosion of contacts or connectors
How to Fix
- Check the integrity of the wiring harness and connectors
- Measure the resistance of the temperature sensor
- Check the voltage in the sensor circuit
- Replace temperature sensor if necessary
- Clean or replace damaged wires
- Reset the error and check for reappearance
Related codes
Error P042D by Vehicle Brand
FAQ
What does the P042D code mean?
P042D is an OBD-II diagnostic trouble code that indicates: Catalyst Temperature Sensor Circuit High Bank 1 Sensor 2
What causes a P042D error code?
The most common causes of P042D include: Short circuit in the temperature sensor circuit; Malfunction of the catalytic converter temperature sensor; Wiring harness damage; Problems with the engine ECU.
How do I fix a P042D diagnostic trouble code?
To fix P042D: Check the integrity of the wiring harness and connectors. Measure the resistance of the temperature sensor. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P042D?
Limited driving only, diagnose soon
How much does it cost to fix P042D?
The estimated repair cost for P042D is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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