P167D – BMW DTC

BMW DTC P167D – Throttle Heating Relay Circuit Open

DTC P167D meaning on BMW

DTC P167D on a BMW indicates a fault with the throttle heating relay circuit being open. This means that there is an issue with the electrical circuit that controls the throttle heating relay, which is responsible for heating the throttle body in cold weather conditions to prevent icing and ensure smooth operation of the throttle.

BMW DTC P167D symptoms

Symptoms of DTC P167D on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced engine performance
• Throttle response may be sluggish or unresponsive

BMW DTC P167D causes

The common causes of DTC P167D on a BMW include:

• Faulty throttle heating relay
• Open or short circuit in the wiring related to the throttle heating relay
• Corrosion or poor connections in the relay circuit

BMW DTC P167D seriousness

While DTC P167D may not cause immediate drivability issues, it is important to address this fault promptly to ensure proper operation of the throttle system, especially in cold weather conditions. Ignoring this fault could lead to further complications and potential engine performance issues.

How to diagnose DTC P167D on BMW

To diagnose DTC P167D 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 throttle heating relay and related wiring for any visible damage or corrosion
3. Test the continuity of the relay circuit using a multimeter
4. Check for any loose connections or poor grounds in the circuit

How to fix DTC P167D on BMW

To fix DTC P167D on a BMW, the following steps may be taken:

1. Replace the faulty throttle heating relay if necessary
2. Repair any open or short circuits in the wiring related to the throttle heating relay
3. Clean any corrosion from the relay circuit connections
4. Ensure all connections are secure and properly tightened

How to erase DTC P167D on BMW

To erase DTC P167D on a BMW, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made to address the underlying issue causing the fault code, the diagnostic scanner can be used to clear the code from the vehicle’s memory.

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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