OBD Guide

P2A75

Alternative Fuel Hydraulic Pump Pressure Sensor Circuit

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Unstable engine operation
  • Increased fuel consumption
  • Engine transition to emergency mode

Causes

  • Hydraulic pump pressure sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Hydraulic pump malfunction
  • Problems with the ECU

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check sensor connectors for corrosion or damage.
  3. Test the pressure sensor with a multimeter
  4. Replace pressure sensor if necessary
  5. Check the operation of the hydraulic pump

Related codes

Error P2A75 by Vehicle Brand