OBD Guide

P2AD9

Reductant Pump Motor Position Sensor Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • SCR System Error Message
  • Increased NOx emissions

Causes

  • Pump position sensor circuit open
  • Short circuit to power in wiring harness
  • Pump position sensor malfunction
  • Problems with the SCR control unit
  • Corrosion or poor contact in connectors

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the voltage and resistance of the sensor
  3. Inspect connectors and wiring harness for damage
  4. Replace the pump position sensor if necessary
  5. Reset the error and check the system operation

Related codes

Error P2AD9 by Vehicle Brand