OBD Guide
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P06D7

Sensor Reference Voltage F Circuit Low

P06D7 is an OBD-II diagnostic trouble code meaning: Sensor Reference Voltage F Circuit Low. Common causes: short circuit of the f circuit wire to the car body, internal short in one of the f circuit sensors. Estimated repair cost: $9–67.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$9–67 (est.)

Symptoms

  • Low sensor readings on the diagnostic scanner
  • Multiple sensor error codes with type “Low”
  • Over-rich or over-lean fuel mixture
  • Check Engine light on
  • Unstable engine operation

Causes

  • Short circuit of the F circuit wire to the car body
  • Internal short in one of the F circuit sensors
  • Damaged wire harness insulation
  • Moisture getting into the sensor or ECU connector
  • Malfunction of internal ECU reference voltage stabilizer

How to Fix

  1. Measure the voltage at terminal F with the ignition on
  2. Determine the list of sensors for circuit F according to the electrical diagram
  3. Disconnect the sensors one by one until the voltage normalizes
  4. Check the faulty sensor for internal short circuit with an ohmmeter
  5. Check wiring for insulation damage
  6. If the voltage is consistently low without sensors connected, diagnose the ECU

Related codes

P06D6P06D8P06D9P0652P0641

Error P06D7 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P06D7 code mean?

P06D7 is an OBD-II diagnostic trouble code that indicates: Sensor Reference Voltage F Circuit Low

What causes a P06D7 error code?

The most common causes of P06D7 include: Short circuit of the F circuit wire to the car body; Internal short in one of the F circuit sensors; Damaged wire harness insulation; Moisture getting into the sensor or ECU connector.

How do I fix a P06D7 diagnostic trouble code?

To fix P06D7: Measure the voltage at terminal F with the ignition on. Determine the list of sensors for circuit F according to the electrical diagram. Disconnect the sensors one by one until the voltage normalizes. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P06D7?

Yes, but get it checked soon

How much does it cost to fix P06D7?

The estimated repair cost for P06D7 is $9–67. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat