Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's system that controls a light showing if the engine's stop-start feature is on or off. It's like a broken light switch for a special car feature.
The P06F4 code indicates an issue in the electrical circuit that controls the lamp or indicator for the stop-start mode in a vehicle.
The P06F4 code is triggered when the Engine Control Module (ECM) detects a malfunction in the circuit responsible for illuminating the stop-start mode indicator lamp. This could be due to a faulty connection, a short circuit, or a failed component within the circuit.
• Stop-start mode lamp not working
• Check engine light illuminated
• Stop-start system not functioning properly
• Faulty stop-start mode lamp
• Damaged wiring or connectors
• Malfunctioning ECM
ECM: Engine Control Module, the computer that controls the engine's functions.
Stop-Start System: A feature that turns off the engine when the car is stopped to save fuel.
• Inspect the stop-start mode lamp for damage.
• Check wiring and connectors for signs of wear or damage.
• Test the ECM for proper function.
• Replace the stop-start mode lamp if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $400
Moderate
• Ford Focus
• Chevrolet Malibu
• Toyota Prius
• Regularly inspect electrical connections.
• Ensure the stop-start system is serviced according to the manufacturer's schedule.
• Avoid harsh conditions that might damage wiring.
Electrical Circuit Issue
• Have a professional inspect the vehicle if you're not familiar with electrical systems.
• Avoid using the stop-start feature until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code has become more common with the increasing use of stop-start technology in modern vehicles.
Moderate – The vehicle can still be driven, but the stop-start feature may not work properly.
Driving with a malfunctioning stop-start system may not be compliant with emissions regulations in some areas.
• Vehicle in park or neutral
• Engine running
The stop-start mode lamp is typically located on the dashboard or instrument cluster.
Q: Can I drive with a P06F4 code?
A: Yes, but the stop-start feature may not work properly.
Q: Will a P06F4 code affect my car's performance?
A: It may affect the stop-start system, but not the overall performance.
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