Error code C1860 is displayed and the check engine light is on - what does this mean?
The DTC C1860 is recognized by the OBD/EOBD system when there is a problem with the ABS hydraulic block or the brake pressure control. This fault code mainly affects the anti-lock braking system and can have slightly different meanings for different manufacturers, but generally refers to faults in the hydraulic brake control system.
What causes can this error code have?
- Defective ABS hydraulic block
- Damaged brake pressure sensors
- Loose or corroded plug connections on the ABS module
- Faulty ABS control unit
- Defective brake fluid pump
- Blocked hydraulic lines
- Low brake fluid level
- Defective check valves in the ABS system
- Damaged cable connections to the brake control unit
What symptoms occur in parallel with fault code C1860?
- ABS warning light: The ABS indicator light in the dashboard lights up continuously
- Braking behavior: Changed braking characteristics or longer braking distances
- Pumping noises: Unusual noises from the ABS hydraulic block
- Brake pedal feel: Spongy or hard brake pedal
- ESP malfunction: Failure of the driving stability systems
- Starting problems: In rare cases, problems starting the engine
How to fix the problem of fault code C1860?
- Repairing fault code C1860 requires a systematic approach to the brake system.
- Replace the ABS hydraulic block: Complete replacement of the defective hydraulic block, including bleeding the entire brake system
- Replace brake pressure sensors: Replacing the faulty sensors and subsequent calibration via the diagnostic device
- Clean and secure plug connections: Thorough cleaning of all electrical connections on the ABS module and application of contact spray
- Program the ABS control unit: Replacing the control unit with subsequent programming and basic adjustment
- Change brake fluid: Complete change of brake fluid and professional bleeding of all brake lines
- Flush hydraulic lines: Flushing the brake lines to remove impurities and deposits
FAQ - Frequently asked questions about DTC C1860
Can I continue driving with fault code C1860?
Continuing to drive with code C1860 is not recommended, as braking safety may be impaired. The ABS system may not function properly, which can be dangerous during emergency braking.
How much does it cost to repair fault code C1860?
The repair costs for trouble code C1860 vary between 150-1200 euros, depending on the cause. Sensor replacement costs around 150-300 euros, while a new ABS hydraulic block can cost 800-1200 euros.
How is fault code C1860 diagnosed?
Diagnosis is carried out using an OBD diagnostic device that reads out the EOBD code. In addition, brake pressure tests and electrical measurements are carried out on the ABS components.
Can the C1860 code be caused by low brake fluid?
Yes, a brake fluid level that is too low can trigger DTC C1860, as the brake pressure sensor is not working properly. First check the level in the brake fluid reservoir.
Does error code C1860 disappear by itself?
The code C1860 does not normally disappear by itself, as it indicates a mechanical or electronic problem. After a successful repair, the fault memory must be deleted using a diagnostic device.
What tools do I need for the C1860 repair?
To rectify fault code C1860, you will need an OBD scanner, brake fluid, bleeding device and, depending on the repair, special ABS diagnostic equipment. Many repairs should be carried out in a specialist workshop.
How to change front wheel bearing on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC
How to change fuel filter BMW 3 (E90) [TUTORIAL AUTODOC]
How to change Front wheel bearing on VW GOLF 4 TUTORIAL | AUTODOC
How to change a rear brake pads FORD FOCUS 3 TUTORIAL | AUTODOC
How to change pollen filter / cabin filter on AUDI A6 (C6) [TUTORIAL AUTODOC]
How to change engine thermostat on PEUGEOT 207 [TUTORIAL AUTODOC]
How to change fuel filter NISSAN X-TRAIL T30 TUTORIAL | AUTODOC
How to change front wheel bearing TOYOTA YARIS XP10 TUTORIAL | AUTODOC
Free download PDF
1.38 MB
Free download PDF
Free download PDF
Free download PDF
Free download PDF
Free download PDF
Ask on the forum
How to tighten cylinder head bolts
Top 5 possible reasons your car is shaking or vibrating
Preventing Engine Failure: Head Gasket Inspection Tutorial | AUTODOC
Top 7 Manual Transmission Mistakes to Avoid | AUTODOC Tips
