P1C38 – BMW DTC

BMW DTC P1C38 – Safety Function Longitudinal Acceleration

DTC P1C38 meaning on BMW

The DTC P1C38 on a BMW refers to the Safety Function Longitudinal Acceleration fault code. This code indicates an issue with the vehicle’s longitudinal acceleration sensor or related components.

BMW DTC P1C38 symptoms

Symptoms of the BMW DTC P1C38 may include:

• ABS warning light illuminated
• Traction control system malfunction
• Stability control system failure
• Reduced vehicle stability during acceleration

BMW DTC P1C38 causes

Common causes of the BMW DTC P1C38 fault code include:

• Defective longitudinal acceleration sensor
• Wiring or connection issues in the sensor circuit
• Electronic control unit (ECU) communication problems

BMW DTC P1C38 seriousness

The BMW DTC P1C38 fault code should be addressed promptly as it can affect the vehicle’s safety systems, including ABS, traction control, and stability control. Ignoring this fault may lead to compromised vehicle handling and safety.

How to diagnose DTC P1C38 on BMW

To diagnose the DTC P1C38 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and related data
2. Inspect the longitudinal acceleration sensor and its wiring for damage or corrosion
3. Check the ECU for any communication errors
4. Perform a road test to verify the symptoms and confirm the fault

How to fix DTC P1C38 on BMW

Fixing the BMW DTC P1C38 code may involve the following actions:

1. Replace the faulty longitudinal acceleration sensor
2. Repair any damaged wiring or connections in the sensor circuit
3. Clear the fault code and reset the vehicle’s ECU
4. Perform a test drive to ensure the issue is resolved

How to erase DTC P1C38 on BMW

To erase the DTC P1C38 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault code from the ECU
2. Ensure the repair has been completed successfully
3. Perform a final check to confirm the fault code 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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