P2608 – BMW DTC

BMW DTC P2608 – Intake Air Heater ‘B’ Circuit High

DTC P2608 meaning on BMW

DTC P2608 on a BMW indicates a fault with the Intake Air Heater ‘B’ Circuit. This means that the control module has detected a high voltage condition in the circuit responsible for controlling the intake air heater.

BMW DTC P2608 symptoms

Symptoms of DTC P2608 on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Poor fuel efficiency
• Engine may have difficulty starting in cold weather

BMW DTC P2608 causes

Common causes of DTC P2608 on a BMW include:

• Faulty intake air heater ‘B’
• Short circuit or open circuit in the intake air heater circuit
• Issues with the intake air heater relay
• Wiring or connector problems

BMW DTC P2608 seriousness

While DTC P2608 may not cause immediate drivability issues, it can lead to reduced engine performance and efficiency. Ignoring this fault can potentially cause further damage to the engine components over time.

How to diagnose DTC P2608 on BMW

To diagnose DTC P2608 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes
2. Inspect the intake air heater ‘B’ for any visible damage
3. Check the wiring and connectors for any signs of wear or corrosion
4. Test the intake air heater relay for proper operation

How to fix DTC P2608 on BMW

To fix DTC P2608 on a BMW, you can try the following:

1. Replace the faulty intake air heater ‘B’
2. Repair any short circuits or open circuits in the intake air heater circuit
3. Ensure all wiring and connectors are in good condition
4. Replace the intake air heater relay if necessary

How to erase DTC P2608 on BMW

To erase DTC P2608 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s control module. Once the issue has been fixed, clearing the codes will reset the Check Engine Light and turn off the warning indicator.

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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