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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System - Diagnostic Codes - (Except Hybrid) (2 Of 2) >> Vehicle Stability Control System >> DTC C1225: SM Solenoid Circuit; DTC C1468: SFR Solenoid Circuit; DTC C1469: SFL Solenoid Circuit; DTC C146A: SRR Solenoid Circuit; DTC C146B: SRL Solenoid Circuit [11/2016 - ] >> Description

DTC C1225: SM Solenoid Circuit; DTC C1468: SFR Solenoid Circuit; DTC C1469: SFL Solenoid Circuit; DTC C146A: SRR Solenoid Circuit; DTC C146B: SRL Solenoid Circuit [11/2016 - ]: Description

These solenoids turn on when signals are received from the skid control ECU (brake actuator assembly) and they control the pressure acting on the wheel cylinders to control the braking force.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1225 SM Solenoid Circuit Any of the following is detected:
  1. While master cylinder cut solenoid outputs ON, overcurrent continues for 0.1 seconds or more.
  2. While master cylinder cut solenoid outputs OFF, open circuit continues for 0.05 seconds or more.
  3. While master cylinder cut solenoid outputs ON, open circuit continues for 0.05 seconds or more.
  4. While master cylinder cut solenoid outputs OFF, current is maintained for 0.05 seconds or more.
  5. Difference in master cylinder cut solenoid output accuracy continues for 0.2 seconds or more.
 Brake actuator assembly
C1468 SFR Solenoid Circuit Any of the following is detected:
  1. Open or short circuit in decompression solenoid continues for 0.05 seconds or more.
  2. While holding solenoid outputs OFF, open circuit continues for 0.05 seconds or more.
  3. While holding solenoid outputs OFF, current is maintained for 0.05 seconds or more.
  4. While holding solenoid outputs ON, overcurrent continues for 0.1 seconds or more.
  5. While holding solenoid outputs ON, open circuit continues for 0.05 seconds or more.
  6. Difference in holding solenoid LH and RH accuracy continues for 0.2 seconds or more.
 Brake actuator assembly
C1469 SFL Solenoid Circuit Any of the following is detected:
  1. Open or short circuit in decompression solenoid continues for 0.05 seconds or more.
  2. While holding solenoid outputs OFF, open circuit continues for 0.05 seconds or more.
  3. While holding solenoid outputs OFF, current is maintained for 0.05 seconds or more.
  4. While holding solenoid outputs ON, overcurrent continues for 0.1 seconds or more.
  5. While holding solenoid outputs ON, open circuit continues for 0.05 seconds or more.
  6. Difference in holding solenoid LH and RH accuracy continues for 0.2 seconds or more.
 Brake actuator assembly
C146A SRR Solenoid Circuit Any of the following is detected:
  1. Open or short circuit in decompression solenoid continues for 0.05 seconds or more.
  2. While holding solenoid outputs OFF, open circuit continues for 0.05 seconds or more.
  3. While holding solenoid outputs OFF, current is maintained for 0.05 seconds or more.
  4. While holding solenoid outputs ON, overcurrent continues for 0.1 seconds or more.
  5. While holding solenoid outputs ON, open circuit continues for 0.05 seconds or more.
  6. Difference in holding solenoid LH and RH accuracy continues for 0.2 seconds or more.
 Brake actuator assembly
C146B SRL Solenoid Circuit Any of the following is detected:
  1. Open or short circuit in decompression solenoid continues for 0.05 seconds or more.
  2. While holding solenoid outputs OFF, open circuit continues for 0.05 seconds or more.
  3. While holding solenoid outputs OFF, current is maintained for 0.05 seconds or more.
  4. While holding solenoid outputs ON, overcurrent continues for 0.1 seconds or more.
  5. While holding solenoid outputs ON, open circuit continues for 0.05 seconds or more.
  6. Difference in holding solenoid LH and RH accuracy continues for 0.2 seconds or more.
 Brake actuator assembly
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