P05F3

2017-10-10

Description:

  • Exhaust Aftertreatment Power Relay Control Circuit/Open

Possible Symptoms:

  • Check and replace the faulty exhaust aftertreatment power relay

  • Inspect and repair any damaged or loose wiring connections related to the exhaust aftertreatment power relay

  • Clean or replace the exhaust aftertreatment sensors if necessary

  • Replace the power relay

Possible Causes:

  • Faulty or malfunctioning exhaust aftertreatment power relay

  • Open circuit or damaged wiring in the exhaust aftertreatment power relay control circuit

  • Loose or corroded connections in the exhaust aftertreatment power relay control circuit

  • Faulty exhaust aftertreatment system components

  • ECM (Engine Control Module) or PCM (Powertrain Control Module) malfunction

Related Parts:

Possible Solutions:

  • Engine misfires or runs rough

  • Reduced engine power or acceleration

  • Poor fuel economy

  • Check engine light illuminated

  • Difficulty starting the vehicle

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