P16A2 – BMW DTC

BMW DTC P16A2 – Internal Control Module Memory Check Sum Error in Data

DTC P16A2 meaning on BMW

DTC P16A2 on a BMW indicates an Internal Control Module Memory Check Sum Error in Data. This error occurs when the control module detects that the data stored in its memory does not match the expected checksum value. The control module uses checksums to verify the integrity of the data stored in its memory.

BMW DTC P16A2 symptoms

Symptoms of DTC P16A2 on a BMW may include:

• Check Engine Light (MIL) illuminated
• Reduced engine performance
• Vehicle may go into limp mode

BMW DTC P16A2 causes

The common causes of DTC P16A2 on a BMW include:

• Corrupted data in the control module memory
• Faulty control module
• Electrical issues such as poor connections or wiring problems

BMW DTC P16A2 seriousness

DTC P16A2 should not be ignored as it can lead to performance issues and potential drivability concerns. It is recommended to address this issue promptly to prevent further damage to the vehicle.

How to diagnose DTC P16A2 on BMW

To diagnose DTC P16A2 on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes
2. Inspect the control module for any visible signs of damage
3. Check the wiring and connections related to the control module
4. Perform a checksum verification test on the control module memory

How to fix DTC P16A2 on BMW

To fix DTC P16A2 on a BMW, the following steps may be taken:

1. Clear the fault codes using a diagnostic scanner
2. If the issue persists, reprogram or replace the control module
3. Ensure all wiring and connections are secure and free of damage
4. Perform a test drive to verify that the issue has been resolved

How to erase DTC P16A2 on BMW

To erase DTC P16A2 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault codes
2. If the issue persists, address the underlying cause as mentioned in the previous section
3. After fixing the issue, clear the fault codes again and perform a final check to ensure the DTC has been erased

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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