OBD Guide

P2A2B

Alternative Fuel Tank Shutoff Valve D Control Circuit Performance/Stuck Off

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

Symptoms

  • Inability to switch to alternative fuel
  • Check Engine Light Is On
  • Reduced power when running on alternative fuels
  • Errors in the alternative fuel system

Causes

  • Stop valve jammed
  • Open or short circuit in control circuit
  • Faulty relay or fuse
  • Problems with the control unit
  • Oxidation of contacts

How to Fix

  1. Check system fuses and relays
  2. Inspect the wiring harness for damage
  3. Check valve resistance
  4. Test the operation of the valve by applying voltage
  5. Replace faulty shut-off valve if necessary

Related codes

Error P2A2B by Vehicle Brand