BMW DTC P1414 – Secondary Air Injection Pump Relay Control Circuit Signal High
DTC P1414 meaning on BMW
The Diagnostic Trouble Code (DTC) P1414 for BMW indicates an issue with the Secondary Air Injection Pump Relay Control Circuit Signal being too high. This code is specific to the secondary air injection system, which is responsible for reducing emissions during cold starts by injecting fresh air into the exhaust system.
BMW DTC P1414 symptoms
Symptoms of DTC P1414 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Reduced engine performance
- In some cases, the vehicle may go into a limp mode
BMW DTC P1414 causes
Common causes of DTC P1414 on a BMW include:
- Faulty secondary air injection pump relay
- Wiring issues in the relay control circuit
- Defective secondary air injection pump
BMW DTC P1414 seriousness
While DTC P1414 may not cause immediate drivability issues, it is important to address this code promptly to ensure proper emission control and overall vehicle performance. Ignoring this code can lead to increased emissions and potential long-term damage to the engine and catalytic converter.
How to diagnose DTC P1414 on BMW
To diagnose DTC P1414 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the secondary air injection pump relay and related wiring for any visible damage
- Test the relay and pump for proper functionality
- Check for any loose connections or corrosion in the circuit
How to fix DTC P1414 on BMW
To fix DTC P1414 on a BMW, you can consider the following actions:
- Replace the faulty secondary air injection pump relay
- Repair or replace any damaged wiring in the relay control circuit
- If the secondary air injection pump is defective, replace it with a new unit
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC P1414 on BMW
To erase DTC P1414 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s Engine Control Module (ECM). After fixing the underlying issue causing the code, clearing the codes will reset the Check Engine Light and allow you to monitor the system for any new faults.