Error code
OBD2 P2046
OBD2P2046
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Reductant Temperature Sensor Circuit Intermittent.
Severity
moderateCan be driven but may cause emission problems and potential long-term damage.
Summary
P2046 indicates an intermittent issue with the reductant temperature sensor circuit, which is part of the emissions system.
Common Causes
- Wiring issues related to the reductant temperature sensor
Fixes
- Inspect and repair or replace the reductant temperature sensor wiring.
FAQ
What is a reductant temperature sensor?
A reductant temperature sensor monitors the temperature of exhaust gases in the emissions system to ensure proper operation.
How do I diagnose P2046?
Diagnosing P2046 typically involves checking for wiring issues or faulty connections related to the reductant temperature sensor.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2000NOx Trap Efficiency Below Threshold
- P2001NOx Trap Efficiency Below Threshold
- P2002Particulate Trap Efficiency Below Threshold
- P2003Particulate Trap Efficiency Below Threshold
- P2004Intake Manifold Runner Control Stuck Open
- P2005Intake Manifold Runner Control Stuck Open
- P2006Intake Manifold Runner Control Stuck Closed
- P2007Intake Manifold Runner Control Stuck Closed
- P2008Intake Manifold Runner Control Circuit/Open
- P2009Intake Manifold Runner Control Circuit Low
- P2010Intake Manifold Runner Control Circuit High
- P2011Intake Manifold Runner Control Circuit/Open