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DTC C1A64: Brake Control Signal Mismatch [11/2015 - 12/2018]: Description

The skid control ECU (brake booster with master cylinder assembly) sends signals to the driving support ECU assembly according to the brake control status. If the driving support ECU assembly receives an electronically controlled brake system malfunction signal from the skid control ECU (brake booster with master cylinder assembly), it will store DTC C1A64.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A64 Brake Control Signal Mismatch While the power switch is on (IG), the driving support ECU assembly receives an electronically controlled brake system malfunction signal from the skid control ECU (brake booster with master cylinder assembly) continuously for 0.5 seconds or more.
  • Electronically controlled brake system
  • Skid control ECU (Brake booster with master cylinder assembly)
  • Driving support ECU assembly