OBD Guide
ENFRDEESPT

P03D1

Cylinder 7 Pressure Sensor Circuit

P03D1 is an OBD-II diagnostic trouble code meaning: Cylinder 7 Pressure Sensor Circuit. Common causes: open circuit or short circuit in the wiring of the pressure sensor of cylinder 7, damaged or corroded sensor connector. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light on
  • Slight engine instability
  • Slight reduction in power at high loads
  • Possible periodic misfires in cylinder 7
  • Deteriorating fuel economy

Causes

  • Open circuit or short circuit in the wiring of the pressure sensor of cylinder 7
  • Damaged or corroded sensor connector
  • Failure of the pressure sensor itself
  • Mechanical damage to the wiring harness
  • ECU malfunction (extremely rare)

How to Fix

  1. Find the cylinder 7 pressure sensor connector according to the electrical diagram
  2. Carefully inspect the connector - the presence of corrosion, deformation of the clamps, cleanliness of the contacts
  3. Check the wiring from the connector to the ECU for open circuit and short circuit (with a multimeter)
  4. Measure the sensor supply voltage with the ignition on
  5. If the circuit is working, replace the pressure sensor of cylinder 7
  6. Reset codes, start engine and verify resolution

Related codes

P03D3P03D4P03DFP0307

Error P03D1 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P03D1 code mean?

P03D1 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 Pressure Sensor Circuit

What causes a P03D1 error code?

The most common causes of P03D1 include: Open circuit or short circuit in the wiring of the pressure sensor of cylinder 7; Damaged or corroded sensor connector; Failure of the pressure sensor itself; Mechanical damage to the wiring harness.

How do I fix a P03D1 diagnostic trouble code?

To fix P03D1: Find the cylinder 7 pressure sensor connector according to the electrical diagram. Carefully inspect the connector - the presence of corrosion, deformation of the clamps, cleanliness of the contacts. Check the wiring from the connector to the ECU for open circuit and short circuit (with a multimeter). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P03D1?

Do not drive — repair immediately

How much does it cost to fix P03D1?

The estimated repair cost for P03D1 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat