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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 73 (Electronically Controlled Brake System (HEV) - Diagnostic Codes (5 Of 6)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1425: Open in Stop Switch Circuit; DTC P0573: Brake Switch "A" Circuit High [01/2019 - 09/2022] >> Description

DTC C1425: Open in Stop Switch Circuit; DTC P0573: Brake Switch "A" Circuit High [01/2019 - 09/2022]: Description

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

The skid control ECU (brake booster with master cylinder assembly) detects the brake operating conditions through a signal transmitted by the stop light switch assembly.

The skid control ECU incorporates a circuit to detect an open circuit. This DTC is output when an open circuit is detected in the stop light signal input line.

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note
C1425 Open in Stop Switch Circuit 231 An open stop light switch circuit continues for 10 seconds or more.
  • Wire harness or connector
  • Stop light switch assembly
  • Skid control ECU (brake booster with master cylinder assembly)
  • Stop light circuit
Comes on
  • INF Code 231: SAE Code P0572
  • Electronically controlled brake system DTC
P0573 Brake Switch "A" Circuit High - The stop light switch assembly is stuck 10 times or more.
  • Wire harness or connector
  • Stop light switch assembly
  • Skid control ECU (brake booster with master cylinder assembly)
Comes on -