OBD Guide
ENFRDEESPT

P0659

Actuator Supply Voltage A Circuit High

P0659 is an OBD-II diagnostic trouble code meaning: Actuator Supply Voltage A Circuit High. Common causes: generator voltage too high (faulty voltage regulator), circuit a power supply short circuit to high voltage source. Estimated repair cost: $17–278.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–278 (est.)

Symptoms

  • Check Engine light comes on
  • Overheating or premature failure of solenoids
  • Unstable operation of actuators
  • High voltage on-board network
  • Possible charging system codes (P0562, P0563)

Causes

  • Generator voltage too high (faulty voltage regulator)
  • Circuit A power supply short circuit to high voltage source
  • Actuator power relay malfunction (stuck in closed position with incorrect voltage)
  • ECU malfunction
  • Failure in the on-board voltage control system

How to Fix

  1. Check the voltage of the on-board network with a multimeter (normal: 13.5–14.5 V)
  2. Check generator voltage regulator
  3. Check circuit A voltage with engine running
  4. Inspect the wiring for shorts to high voltage sources
  5. Check the actuator power relay
  6. If the generator malfunction is confirmed, replace the regulator or generator

Related codes

P0657P0658P0563P0622P063D

Error P0659 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0659 code mean?

P0659 is an OBD-II diagnostic trouble code that indicates: Actuator Supply Voltage A Circuit High

What causes a P0659 error code?

The most common causes of P0659 include: Generator voltage too high (faulty voltage regulator); Circuit A power supply short circuit to high voltage source; Actuator power relay malfunction (stuck in closed position with incorrect voltage); ECU malfunction.

How do I fix a P0659 diagnostic trouble code?

To fix P0659: Check the voltage of the on-board network with a multimeter (normal: 13.5–14.5 V). Check generator voltage regulator. Check circuit A voltage with engine running. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0659?

Yes, but get it checked soon

How much does it cost to fix P0659?

The estimated repair cost for P0659 is $17–278. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat