OBD Guide
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P0396

Cylinder 1 Pressure Sensor Circuit Range/Performance

P0396 is an OBD-II diagnostic trouble code meaning: Cylinder 1 Pressure Sensor Circuit Range/Performance. Common causes: faulty cylinder 1 pressure sensor, damaged or broken sensor wiring. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Illuminates
  • Unstable engine operation at idle
  • Reduced engine power and throttle response
  • Increased fuel consumption
  • Misfire in cylinder 1

Causes

  • Faulty cylinder 1 pressure sensor
  • Damaged or broken sensor wiring
  • Oxidation or poor contact in the sensor connector
  • Problems with the cylinder 1 ignition system
  • ECU malfunction (rare)

How to Fix

  1. Connect a diagnostic scanner and read all fault codes
  2. Check the wiring and connector of the cylinder 1 pressure sensor for damage and oxidation.
  3. Measure the supply voltage and sensor signal with a multimeter
  4. Replace the cylinder 1 pressure sensor if its malfunction is confirmed.
  5. Check the condition of the spark plug and ignition coil of cylinder 1
  6. Reset codes and take a test drive to confirm the problem has been resolved

Related codes

P0300P0301P039CP03A3

Error P0396 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0396 code mean?

P0396 is an OBD-II diagnostic trouble code that indicates: Cylinder 1 Pressure Sensor Circuit Range/Performance

What causes a P0396 error code?

The most common causes of P0396 include: Faulty cylinder 1 pressure sensor; Damaged or broken sensor wiring; Oxidation or poor contact in the sensor connector; Problems with the cylinder 1 ignition system.

How do I fix a P0396 diagnostic trouble code?

To fix P0396: Connect a diagnostic scanner and read all fault codes. Check the wiring and connector of the cylinder 1 pressure sensor for damage and oxidation.. Measure the supply voltage and sensor signal with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0396?

Do not drive — repair immediately

How much does it cost to fix P0396?

The estimated repair cost for P0396 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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