OBD Guide
ENFRDEESPT

P05E5

Park Brake Sensor/Switch Circuit High

P05E5 is an OBD-II diagnostic trouble code meaning: Park Brake Sensor/Switch Circuit High. Common causes: short circuit of the signal wire of the switch to the power wire (+12 v), damage to the insulation of the wiring harness with contact between the signal and supply wires. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Is On
  • The parking brake indicator does not light up even when the brake is on.
  • Or the indicator is constantly on when the brake is released
  • Failure of the starting assistant on a slope
  • In EPB systems - loss of parking brake control

Causes

  • Short circuit of the signal wire of the switch to the power wire (+12 V)
  • Damage to the insulation of the wiring harness with contact between the signal and supply wires
  • Internal fault of the switch with constant power supply to the signal output
  • Corrosion of the connector with the formation of a parasitic path to the power supply
  • Malfunction of the EPB control unit (in systems with electronic parking brake)

How to Fix

  1. Read all fault codes; for EPB - use a specialized scanner that supports this system
  2. Measure the voltage on the signal wire of the switch with the ignition on
  3. Disconnect the switch connector: if the voltage drops to zero, there is a short circuit inside the switch; if it remains high, there is a short in the harness
  4. Test the signal wire for a short with the power wire (+12 V)
  5. Inspect the harness in the area of the parking brake lever and half the space under the console
  6. Replace the switch or fix the short in the wiring

Related codes

P05E3P05E4P0571P0572

Error P05E5 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P05E5 code mean?

P05E5 is an OBD-II diagnostic trouble code that indicates: Park Brake Sensor/Switch Circuit High

What causes a P05E5 error code?

The most common causes of P05E5 include: Short circuit of the signal wire of the switch to the power wire (+12 V); Damage to the insulation of the wiring harness with contact between the signal and supply wires; Internal fault of the switch with constant power supply to the signal output; Corrosion of the connector with the formation of a parasitic path to the power supply.

How do I fix a P05E5 diagnostic trouble code?

To fix P05E5: Read all fault codes; for EPB - use a specialized scanner that supports this system. Measure the voltage on the signal wire of the switch with the ignition on. Disconnect the switch connector: if the voltage drops to zero, there is a short circuit inside the switch; if it remains high, there is a short in the harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P05E5?

Limited driving only, diagnose soon

How much does it cost to fix P05E5?

The estimated repair cost for P05E5 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat