OBD Guide
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P0A55

Drive Motor B Current Sensor Circuit

P0A55 is an OBD-II diagnostic trouble code meaning: Drive Motor B Current Sensor Circuit. Common causes: open or short circuit in the sensor circuit, malfunction of the current sensor itself. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • The car goes into emergency mode
  • Increased fuel consumption
  • Problems with switching hybrid system modes

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the current sensor itself
  • Connector problems or contact corrosion
  • Malfunction of the hybrid system control module (HPCM)
  • Wiring harness damage

How to Fix

  1. Check the continuity of the current sensor circuit
  2. Inspect connectors and contacts for damage
  3. Check the resistance of the current sensor
  4. Replace faulty current sensor if necessary
  5. Check and replace wiring harness if necessary

Related codes

P0A56P0A57P0A58

Error P0A55 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0A55 code mean?

P0A55 is an OBD-II diagnostic trouble code that indicates: Drive Motor B Current Sensor Circuit

What causes a P0A55 error code?

The most common causes of P0A55 include: Open or short circuit in the sensor circuit; Malfunction of the current sensor itself; Connector problems or contact corrosion; Malfunction of the hybrid system control module (HPCM).

How do I fix a P0A55 diagnostic trouble code?

To fix P0A55: Check the continuity of the current sensor circuit. Inspect connectors and contacts for damage. Check the resistance of the current sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0A55?

Limited driving only, diagnose soon

How much does it cost to fix P0A55?

The estimated repair cost for P0A55 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat