Error code
OBD2 P2063
OBD2P2063
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Reductant Supply Control Circuit Low.
Severity
moderateCan drive but may fail emissions tests and could worsen over time.
Summary
P2063 indicates a low voltage issue in the reductant supply control circuit, which is part of the engine's emissions system.
Common Causes
- Wiring issues or damage to the reductant supply control circuit
Fixes
- Repair or replace damaged wiring in the reductant supply control circuit.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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