OBD Guide
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P0C46

Hybrid/EV Battery Pack Coolant Temperature Sensor A Circuit Intermittent/Erratic

P0C46 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack Coolant Temperature Sensor A Circuit Intermittent/Erratic. Common causes: battery coolant temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Hybrid/electric system power reduction
  • Increased fuel consumption (for hybrids)
  • Check Engine Light or Battery Warning Light Is On
  • Unstable operation of the battery cooling system
  • Vehicle power limitation

Causes

  • Battery coolant temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Problems with the battery management module

How to Fix

  1. Check the condition of the battery coolant temperature sensor
  2. Check the integrity of the sensor circuit and connectors
  3. Check the sensor resistance and compare with standardized values
  4. If necessary, replace the temperature sensor
  5. Check the operation of the battery cooling system after repair

Related codes

P0C47P0C48P0C49

Error P0C46 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0C46 code mean?

P0C46 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Coolant Temperature Sensor A Circuit Intermittent/Erratic

What causes a P0C46 error code?

The most common causes of P0C46 include: Battery coolant temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P0C46 diagnostic trouble code?

To fix P0C46: Check the condition of the battery coolant temperature sensor. Check the integrity of the sensor circuit and connectors. Check the sensor resistance and compare with standardized values. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0C46?

Limited driving only, diagnose soon

How much does it cost to fix P0C46?

The estimated repair cost for P0C46 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat