Error code
OBD2 P2045
OBD2P2045
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Reductant Temperature Sensor Circuit High Input.
Severity
moderateCan continue driving but may cause emissions issues.
Summary
P2045 indicates that the reductant temperature sensor is providing an abnormally high input signal, likely indicating a malfunction or wiring issue with this sensor.
Common Causes
- Wiring issues
- Faulty reductant temperature sensor
Fixes
- Replace the faulty reductant temperature sensor or repair any wiring issues.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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