OBD Guide
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P03F2

B Camshaft Profile Actuator C Control Circuit Low Bank 1

P03F2 is an OBD-II diagnostic trouble code meaning: B Camshaft Profile Actuator C Control Circuit Low Bank 1. Common causes: solenoid control wire shorted to ground, internal solenoid failure with winding short circuit. Estimated repair cost: $56–333.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–333 (est.)

Symptoms

  • Check Engine light on
  • No switching to high power mode
  • Loss of power and throttle response when accelerating
  • The engine does not respond to increased speed by switching to “sport” mode
  • Possible extraneous knocking sound in the block head when trying to switch

Causes

  • Solenoid control wire shorted to ground
  • Internal solenoid failure with winding short circuit
  • Damage to the control circuit connector
  • Malfunction of the ECU output transistor (controls this solenoid)
  • Dirty oil passages causing mechanical resistance (not electrical cause)

How to Fix

  1. Measure the voltage at the solenoid connector when attempting to activate the shift system.
  2. Check the resistance of the solenoid winding (usually 6-14 ohms)
  3. Ring the control wire for short circuit to ground
  4. Make sure the engine oil level and pressure are normal
  5. Replace faulty actuator solenoid C
  6. If you suspect an ECU, contact a specialist to check the output stage

Related codes

P03F1P03F5P0011P0014

Error P03F2 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P03F2 code mean?

P03F2 is an OBD-II diagnostic trouble code that indicates: B Camshaft Profile Actuator C Control Circuit Low Bank 1

What causes a P03F2 error code?

The most common causes of P03F2 include: Solenoid control wire shorted to ground; Internal solenoid failure with winding short circuit; Damage to the control circuit connector; Malfunction of the ECU output transistor (controls this solenoid).

How do I fix a P03F2 diagnostic trouble code?

To fix P03F2: Measure the voltage at the solenoid connector when attempting to activate the shift system.. Check the resistance of the solenoid winding (usually 6-14 ohms). Ring the control wire for short circuit to ground. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P03F2?

Do not drive — repair immediately

How much does it cost to fix P03F2?

The estimated repair cost for P03F2 is $56–333. Actual cost depends on your vehicle, location, and labor rates.

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