BMW DTC P0487 – EGR Throttle Control Circuit ‘A’ /Open
DTC P0487 meaning on BMW
DTC P0487 indicates a fault in the EGR (Exhaust Gas Recirculation) Throttle Control Circuit ‘A’ on a BMW vehicle. This fault specifically points to an open circuit within the EGR throttle control system.
BMW DTC P0487 symptoms
Symptoms of DTC P0487 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance or power
- Engine stalling or rough idling
- Increased fuel consumption
BMW DTC P0487 causes
Common causes of DTC P0487 on a BMW include:
- Faulty EGR throttle control valve
- Open or short circuit in the wiring related to the EGR throttle control system
- Defective EGR throttle control module
BMW DTC P0487 seriousness
DTC P0487 should not be ignored as it can lead to poor engine performance and increased emissions. While the vehicle may still be operable with this fault, it is recommended to address it promptly to prevent further damage to the engine components.
How to diagnose DTC P0487 on BMW
To diagnose DTC P0487 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the EGR throttle control valve and related wiring for any visible damage
- Test the EGR throttle control module for proper functionality
- Check for continuity in the circuit using a multimeter
How to fix DTC P0487 on BMW
To fix DTC P0487 on a BMW, the following steps may be taken:
- Replace the faulty EGR throttle control valve
- Repair any open or short circuits in the wiring
- Replace the defective EGR throttle control module
- Clear the fault code and reset the Check Engine Light
How to erase DTC P0487 on BMW
To erase DTC P0487 on a BMW, follow these steps:
- Use a diagnostic scanner to clear the fault code
- Disconnect the vehicle’s battery for a few minutes to reset the ECU
- Start the vehicle and ensure the Check Engine Light is no longer illuminated