C1029 – BMW DTC

BMW DTC C1029 – Brake Booster Pressure Sensor Initialization Error

DTC C1029 meaning on BMW

DTC C1029 on a BMW refers to a Brake Booster Pressure Sensor Initialization Error. This diagnostic trouble code indicates that there is an issue with the initialization process of the brake booster pressure sensor in the vehicle’s braking system.

BMW DTC C1029 symptoms

Symptoms of DTC C1029 on a BMW may include:

• Brake warning light illuminated on the dashboard
• Loss of power assistance in the braking system
• Increased pedal effort required to brake

BMW DTC C1029 causes

Common causes of DTC C1029 on a BMW include:

• Malfunctioning brake booster pressure sensor
• Wiring or connection issues related to the sensor
• Software or programming errors

BMW DTC C1029 seriousness

The seriousness of DTC C1029 on a BMW should not be ignored, as it can affect the proper functioning of the vehicle’s braking system. Loss of power assistance in braking can compromise the safety and performance of the vehicle.

How to diagnose DTC C1029 on BMW

To diagnose DTC C1029 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes from the vehicle’s computer
2. Inspect the brake booster pressure sensor and its wiring for any visible damage or corrosion
3. Perform a sensor initialization procedure using a diagnostic tool to check for proper sensor function

How to fix DTC C1029 on BMW

To fix DTC C1029 on a BMW, you can:

1. Replace the faulty brake booster pressure sensor
2. Repair any damaged wiring or connections related to the sensor
3. Update the vehicle’s software or programming to address any errors

How to erase DTC C1029 on BMW

To erase DTC C1029 on a BMW, you can:

1. Use a diagnostic scanner to clear the fault codes from the vehicle’s computer
2. Ensure that the issue causing the fault code has been resolved before clearing the code

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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.