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Home >> Toyota >> 2013 >> Prius Two >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 85 (Dynamic Radar Cruise Control System (Diagnostic Codes & Circuit Tests) (Plug-In)) >> Dynamic Radar Cruise Control System >> DTC C1A41: Brake Request Value Mismatch between ENG / EHV and Driving Support ECU >> Description
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DTC C1A41: Brake Request Value Mismatch between ENG / EHV and Driving Support ECU: Description

WARNING: This page is about a different variant/trim than selected.

The brake booster with master cylinder assembly (skid control ECU) receives brake control request signals from the power management control ECU and driving support ECU assembly.

When the request signals received from the power management control ECU and driving support ECU assembly are not consistent, the brake booster with master cylinder assembly (skid control ECU) determines that a malfunction has occurred and sends a malfunction signal to the driving support ECU assembly.

DTC No. DTC Detection Condition Trouble Area
C1A41 While power switch is on (IG) and dynamic radar cruise control system is operating, brake request signal from power management control ECU and driving support ECU assembly are inconsistent for 1 second
  • Electronically controlled brake system
  • Hybrid control system
  • Power management control ECU
  • Brake booster with master cylinder assembly (skid control ECU)
  • Driving support ECU assembly