Electric Powertrain Coolant Pump Control Malfunction


Table of contents

P1D9A ACURA Possible Causes

  • Water pipe leak
  • Water pipe clogged
  • Faulty Electric Powertrain Coolant Pump
  • Electric Powertrain Coolant Pump harness is open or shorted
  • Electric Powertrain Coolant Pump circuit poor electrical connection
  • Faulty Motor Control Module (Traction)

How do I fix code P1D9A ACURA?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Cost of diagnosing the P1D9A ACURA code

  The cost of diagnosing the P1D9A ACURA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1D9A ACURA Description

  The motor control module (traction) cools the motor power inverter (MPI) module (traction) and the voltage control unit (VCU) by issuing operation command to the electric motor control module coolant pump and by recirculating the coolant. The motor control module (traction) monitors actual revolution speed received from the electric motor control module coolant pump and detects a malfunction and stores a DTC when the actual revolution speed is equal to or less than the prescribed lower limit for the prescribed time or more (foreign matter contamination, seizure) or when the actual revolution speed is equal to or more than the prescribed upper limit (over-revolution) continuously for the prescribed time or more.

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