Fault codes › P05F1

P05F1

Generic code
Free on OBD DashX

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iWhat P05F1 means

  • Reductant Pump Supply Voltage Circuit Stuck On

!Possible symptoms

  • Check and replace the reductant pump fuse if necessary
  • Inspect and clean the reductant pump connectors for any loose or corroded wires
  • Test the reductant pump relay and replace if faulty
  • Replace the reductant pump if all other solutions fail

?Possible causes

  • Faulty reductant pump
  • Blown fuse in the reductant pump supply circuit
  • Short circuit in the reductant pump wiring
  • Malfunctioning reductant pump relay
  • Wiring issue in the reductant pump supply circuit

✓Possible solutions

  • Engine warning light illuminates on the dashboard
  • Decreased engine performance or reduced power
  • Difficulty starting the vehicle or failure to start
  • Increased fuel consumption
  • Presence of a strong or unusual smell from the vehicle's exhaust
Free on OBD DashX

P05F1 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P05F1 No sign-up needed · available in 10 languages

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