OBD Guide
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P07B4

Transmission Park Position Sensor/Switch A Circuit High

P07B4 is an OBD-II diagnostic trouble code meaning: Transmission Park Position Sensor/Switch A Circuit High. Common causes: open or short circuit in the sensor circuit, malfunction of the parking position sensor itself. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Problems starting the engine
  • Incorrect display of selector position on the instrument panel
  • The car may not recognize the parking mode
  • Possible problems with removing the ignition key

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the parking position sensor itself
  • Problems with the sensor connector (oxidation, damage)
  • Malfunction of the automatic transmission control unit
  • Damage to the wiring harness near the sensor

How to Fix

  1. Check the integrity of the wiring to the sensor
  2. Inspect the sensor connector for damage
  3. Check sensor resistance (compare with factory values)
  4. Replace the parking position sensor if necessary
  5. Check the operation of the automatic transmission control unit

Related codes

P07B5P07B3P0705

Error P07B4 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P07B4 code mean?

P07B4 is an OBD-II diagnostic trouble code that indicates: Transmission Park Position Sensor/Switch A Circuit High

What causes a P07B4 error code?

The most common causes of P07B4 include: Open or short circuit in the sensor circuit; Malfunction of the parking position sensor itself; Problems with the sensor connector (oxidation, damage); Malfunction of the automatic transmission control unit.

How do I fix a P07B4 diagnostic trouble code?

To fix P07B4: Check the integrity of the wiring to the sensor. Inspect the sensor connector for damage. Check sensor resistance (compare with factory values). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P07B4?

Do not drive — repair immediately

How much does it cost to fix P07B4?

The estimated repair cost for P07B4 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat