U2412
Reductant Control Module Powertrain Sensor Bus Off
U2412 is an OBD-II diagnostic trouble code meaning: Reductant Control Module Powertrain Sensor Bus Off. Common causes: open or short circuit in the communication circuit, reagent control module malfunction. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased emissions
- Possible errors related to the SCR system
- Inability to activate the reagent system
Causes
- Open or short circuit in the communication circuit
- Reagent control module malfunction
- Module power problems
- Wiring harness damage
- Bad contacts in connectors
How to Fix
- Check the integrity of the communication circuit of the reagent control module
- Check the supply voltage and module ground
- Inspect connectors and connections for corrosion or damage
- Scan the module for additional errors
- Replace the reagent control module or wiring harness if necessary.
Related codes
FAQ
What does the U2412 code mean?
U2412 is an OBD-II diagnostic trouble code that indicates: Reductant Control Module Powertrain Sensor Bus Off
What causes a U2412 error code?
The most common causes of U2412 include: Open or short circuit in the communication circuit; Reagent control module malfunction; Module power problems; Wiring harness damage.
How do I fix a U2412 diagnostic trouble code?
To fix U2412: Check the integrity of the communication circuit of the reagent control module. Check the supply voltage and module ground. Inspect connectors and connections for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2412?
Yes, but get it checked soon
How much does it cost to fix U2412?
The estimated repair cost for U2412 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat