P2485 – BMW DTC

BMW DTC P2485 – Exhaust Gas Temperature Sensor Circuit/Open (Bank 2 Sensor 5)

DTC P2485 meaning on BMW

DTC P2485 indicates a fault in the Exhaust Gas Temperature (EGT) sensor circuit for Bank 2 Sensor 5 in a BMW vehicle. This fault is related to an open circuit, meaning that there is a break or discontinuity in the wiring or connection of the EGT sensor for that specific bank and sensor.

BMW DTC P2485 symptoms

Symptoms of DTC P2485 in a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced engine performance
• Potential increase in fuel consumption
• Possible engine misfires or rough idling

BMW DTC P2485 causes

Common causes of DTC P2485 in a BMW include:

• Wiring harness issues such as breaks or shorts
• Corrosion or poor connections at the EGT sensor
• Defective EGT sensor
• ECU (Engine Control Unit) malfunction

BMW DTC P2485 seriousness

While DTC P2485 may not cause immediate drivability issues, it is important to address this fault promptly to prevent potential damage to the engine or emissions system. Ignoring this fault could lead to more severe problems over time.

How to diagnose DTC P2485 on BMW

To diagnose DTC P2485 on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and related data
2. Inspect the wiring harness for any visible damage or corrosion
3. Check the connections at the EGT sensor for tightness and cleanliness
4. Test the EGT sensor for proper resistance and functionality
5. Verify the operation of the ECU and related components

How to fix DTC P2485 on BMW

To fix DTC P2485 on a BMW, the following steps may be taken:

1. Repair any damaged wiring or connections in the EGT sensor circuit
2. Replace the faulty EGT sensor if necessary
3. Clean or replace any corroded connectors
4. Reset the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P2485 on BMW

To erase DTC P2485 on a BMW, the fault code can be cleared using a diagnostic scanner or by disconnecting the vehicle’s battery for a few minutes. However, it is important to address the underlying cause of the fault before clearing the code to prevent it from reoccurring.

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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