P2046
Reductant Temperature Sensor A Circuit Intermittent
P2046 is an OBD-II diagnostic trouble code meaning: Reductant Temperature Sensor A Circuit Intermittent. Common causes: reagent temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Possible reduction in engine power
- Increased fuel consumption
- Incorrect operation of the SCR system
- Emission errors are possible
Causes
- Reagent temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Contact corrosion
- Problems with the engine control unit
How to Fix
- Check the readings of the reagent temperature sensor
- Inspect the sensor wiring and connectors
- Check sensor resistance
- Replace sensor if necessary
- Clean connector contacts
Related codes
Error P2046 by Vehicle Brand
FAQ
What does the P2046 code mean?
P2046 is an OBD-II diagnostic trouble code that indicates: Reductant Temperature Sensor A Circuit Intermittent
What causes a P2046 error code?
The most common causes of P2046 include: Reagent temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Contact corrosion.
How do I fix a P2046 diagnostic trouble code?
To fix P2046: Check the readings of the reagent temperature sensor. Inspect the sensor wiring and connectors. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2046?
Yes, but get it checked soon
How much does it cost to fix P2046?
The estimated repair cost for P2046 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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