OBD Guide

P0A5A

Generator Current Sensor Circuit Range/Performance

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

Symptoms

  • Check Engine Light Is On
  • Unstable generator operation
  • Voltage surges in the on-board network
  • Battery low
  • Reduced charging efficiency

Causes

  • Generator current sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • Generator malfunction
  • Problems with the voltage regulator

How to Fix

  1. Check the continuity of the generator current sensor circuit
  2. Inspect connectors and contacts for oxidation or damage
  3. Check the functionality of the generator current sensor
  4. Diagnose the generator and voltage regulator
  5. Replace faulty components

Related codes

Error P0A5A by Vehicle Brand