P05F3
Generic code
Free on OBD DashX
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What P05F3 means
- 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
Possible solutions
- Engine misfires or runs rough
- Reduced engine power or acceleration
- Poor fuel economy
- Check engine light illuminated
- Difficulty starting the vehicle
Free on OBD DashX
P05F3 on OBD DashX
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