P04C5 – BMW DTC

BMW DTC P04C5 – Fuel Fill Door Lock Position Sensor/Switch Circuit Low

DTC P04C5 meaning on BMW

DTC P04C5 for BMW refers to the Fuel Fill Door Lock Position Sensor/Switch Circuit Low. This diagnostic trouble code indicates that there is a low voltage condition detected in the sensor or switch circuit responsible for monitoring the position of the fuel fill door lock.

BMW DTC P04C5 symptoms

Symptoms of DTC P04C5 on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Difficulty opening or closing the fuel fill door
• Inaccurate fuel level readings

BMW DTC P04C5 causes

The common causes of DTC P04C5 on a BMW include:

• Faulty fuel fill door lock position sensor/switch
• Wiring issues such as short circuits or open circuits in the sensor circuit
• Corrosion or poor connections in the sensor circuit

BMW DTC P04C5 seriousness

While DTC P04C5 may not directly affect the drivability of the vehicle, it is still important to address this issue promptly. Ignoring this fault could lead to inaccurate fuel level readings or potential issues with the fuel fill door mechanism.

How to diagnose DTC P04C5 on BMW

To diagnose DTC P04C5 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
2. Inspect the wiring and connectors related to the fuel fill door lock position sensor/switch for any visible damage or corrosion.
3. Test the sensor/switch for proper operation using a multimeter.

How to fix DTC P04C5 on BMW

To fix DTC P04C5 on a BMW, you can consider the following actions:

1. Replace the faulty fuel fill door lock position sensor/switch.
2. Repair any damaged wiring or connectors in the sensor circuit.
3. Clean or replace corroded connectors to ensure proper electrical connections.

How to erase DTC P04C5 on BMW

To erase DTC P04C5 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. After addressing the underlying issue causing the fault code, clearing the code will reset the Check Engine Light and monitor the system for any recurring faults.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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