C1103
ABS Hydraulic Brake Switch Circuit Failure
Description
ABS Hydraulic Brake Switch Circuit Failure. This chassis diagnostic trouble code covers braking, traction control, steering and running gear.
OBD Codes Details
Possible Causes
Faulty wheel speed sensor, damaged ABS wiring, worn brake components, low brake fluid
Solution
Read the ABS codes with a scanner, inspect the wheel speed sensors and their wiring, check brake fluid level and pad wear
Symptoms
- Chassis system problems
- ABS or traction control issues
- Suspension or steering problems
- Brake system malfunctions
Diagnostic Recommendations
- Check ABS and chassis control modules
- Test wheel speed sensors
- Inspect brake and suspension systems
- Verify hydraulic system operation
Repair Cost Estimate
- ABS diagnostic: $100-200
- Sensor replacement: $150-400
- Control module repair: $400-1200
- System component replacement: $300-2000
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Fact-checking completed
Verified by:
Pavel Volkov
Created:
Information verified against official sources
Official Sources
Society of Automotive Engineers
Official OBD-II diagnostic trouble codes standard (SAE J2012)
Automotive engineering standards organization
International Organization for Standardization
International standard for vehicle diagnostic systems
International standards for automotive diagnostics
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