BMW DTC C1002 – Brake Booster Circuit Electrical
DTC C1002 meaning on BMW
DTC C1002 on a BMW refers to a fault in the brake booster circuit electrical system. The brake booster is a crucial component that assists in applying the brakes by amplifying the force applied to the brake pedal. When this circuit encounters an electrical issue, it can affect the proper functioning of the brake booster, potentially compromising the vehicle’s braking performance.
BMW DTC C1002 symptoms
Symptoms of DTC C1002 on a BMW may include:
- Brake pedal feeling spongy or hard to press
- Increased pedal effort required to stop the vehicle
- ABS warning light illuminated on the dashboard
- Decreased braking efficiency
BMW DTC C1002 causes
Common causes of DTC C1002 on a BMW include:
- Faulty brake booster sensor
- Wiring issues in the brake booster circuit
- Defective brake booster pump
- Corrosion or poor connections in the electrical system
BMW DTC C1002 seriousness
The seriousness of DTC C1002 on a BMW should not be underestimated, as it directly impacts the vehicle’s braking system. Proper braking performance is essential for vehicle safety, so addressing this fault promptly is crucial to ensure the continued safe operation of the vehicle.
How to diagnose DTC C1002 on BMW
To diagnose DTC C1002 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the brake booster sensor and wiring for any visible damage
- Test the brake booster pump for proper operation
- Check the electrical connections for corrosion or loose connections
How to fix DTC C1002 on BMW
Fixing DTC C1002 on a BMW may involve the following steps:
- Replace the faulty brake booster sensor
- Repair or replace any damaged wiring in the brake booster circuit
- Replace the defective brake booster pump
- Clean or repair any corroded or loose electrical connections
How to erase DTC C1002 on BMW
To erase DTC C1002 on a BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. After addressing the underlying issue causing the fault code, clearing the code will reset the system and allow for proper monitoring of the brake booster circuit.
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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