OBD Guide

P2A31

Alternative Fuel Tank Shutoff Valve E Control Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Problems with switching between fuel types
  • Reduced engine power
  • Increased fuel consumption
  • Unstable operation of the engine using alternative fuel

Causes

  • Short circuit to positive in the control circuit
  • Valve control circuit open
  • Solenoid valve malfunction
  • Wiring Harness Problems
  • Engine control unit malfunction

How to Fix

  1. Check valve control circuit integrity
  2. Check valve resistance
  3. Inspect the wiring harness for damage
  4. Check the operation of the control unit
  5. Replace faulty valve if necessary

Related codes

Error P2A31 by Vehicle Brand