OBD Guide

P2A30

Alternative Fuel Tank Shutoff Valve E Control Circuit Low

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

Symptoms

  • Check Engine Light Is On
  • Problems starting the engine
  • The car only switches to the main tank
  • Uneven engine operation
  • Power reduction

Causes

  • Short circuit to ground in control circuit
  • Open circuit in valve power supply
  • Fuel cut-off valve malfunction
  • Valve control relay problems
  • Engine control unit malfunction

How to Fix

  1. Check the condition of the valve control circuit fuse
  2. Check the integrity of the wiring and connectors
  3. Measure the resistance of the fuel shut-off valve
  4. Check the operation of the control relay
  5. Test the output signal of the control unit

Related codes

Error P2A30 by Vehicle Brand