OBD Guide

U3564

Hydrogen Supply Line A Pressure Sensor 1 Circuit

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • The car goes into emergency mode
  • Unstable engine operation
  • Increased fuel consumption

Causes

  • Open or short circuit in the sensor circuit
  • Hydrogen pressure sensor malfunction
  • Connection problems or contact corrosion
  • Wiring harness damage
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connections and contacts for corrosion
  3. Check sensor resistance
  4. Replace pressure sensor if necessary
  5. Check the operation of the system after repair

Related codes

Error U3564 by Vehicle Brand