P1189: Pump Speed Signal Fault

MediumPowertrainEngine/Powertrain

What does P1189 mean?

P1189 is a diagnostic trouble code indicating "Pump Speed Signal Fault". This code relates to your vehicle's engine/powertrain and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty engine/powertrain component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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Code P1189 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P1188Calibration Memory Fault
P1190Calibration Resistor Out Of Range
P1187Variant Selection
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