OBD Guide

P0A73

Generator Phase V Current Low

P0A73 is an OBD-II diagnostic trouble code meaning: Generator Phase V Current Low. Common causes: generator malfunction, alternator belt problems. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Battery charge indicator is on
  • Poor performance of electrical equipment
  • Low battery
  • Unstable engine operation
  • Intermittent failures of electronic systems

Causes

  • Generator malfunction
  • Alternator belt problems
  • Broken or damaged wires
  • Voltage regulator malfunction
  • Short circuit in generator circuit

How to Fix

  1. Check the condition of the alternator belt
  2. Diagnose a generator on a stand
  3. Check wiring integrity
  4. Replace the voltage regulator if necessary
  5. Replace generator if faulty

Related codes

Error P0A73 by Vehicle Brand

FAQ

What does the P0A73 code mean?

P0A73 is an OBD-II diagnostic trouble code that indicates: Generator Phase V Current Low

What causes a P0A73 error code?

The most common causes of P0A73 include: Generator malfunction; Alternator belt problems; Broken or damaged wires; Voltage regulator malfunction.

How do I fix a P0A73 diagnostic trouble code?

To fix P0A73: Check the condition of the alternator belt. Diagnose a generator on a stand. Check wiring integrity. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0A73?

Yes, but get it checked soon

How much does it cost to fix P0A73?

The estimated repair cost for P0A73 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat