Last Modified: 11-29-2007 1.6 C
Service Category: Brake Section: Brake Control/Dynamic Control System
Model Year: 2008 Model: Sequoia Doc ID: RM000000OS901AX
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

C0226/21

SFR Solenoid Circuit

DTC

C0236/22

SFL Solenoid Circuit

DTC

C0246/23

SRR Solenoid Circuit

DTC

C0256/24

SRL Solenoid Circuit

DTC

C1225/25

SMC Solenoid Circuit

DTC

C1226/26

SMC Solenoid Circuit

DTC

C1227/27

SRC Solenoid Circuit

DTC

C1228/28

SRC Solenoid Circuit

DESCRIPTION

This solenoid is turned on in accordance with signals from the skid control ECU and controls the pressure on the wheel cylinders to control the braking force.



DTC Code

DTC Detection Condition

Trouble Area

C0226/21

C0236/22

C0246/23

C0256/24

Open or short in solenoid circuit continues for 0.05 seconds or more.

VSC actuator (skid control ECU)

C1225/25

C1226/26

C122727

C1228/28

When any of following conditions detected:

  1. During switching solenoid (SMC1, SMC2, SRC1 or SRC2) ON signal input, overcurrent continues for 0.05 seconds or more.
  2. During switching solenoid (SMC1, SMC2, SRC1 or SRC2) OFF signal input, open circuit continues for 0.05 seconds or more.
  3. During switching solenoid (SMC1, SMC2, SRC1 or SRC2) ON signal input, open circuit continues for 0.01 seconds or more.
  4. During switching solenoid (SMC1, SMC2, SRC1 or SRC2) OFF signal input, current continues to be applied for 0.1 seconds or more.
  5. Short to GND in switching solenoid (SMC1, SMC2, SRC1 or SRC2) continues for 0.1 seconds or more.
  6. Switching solenoids (SMC1, SMC2, SRC1 or SRC2) shorted for 0.1 seconds or more.

VSC actuator (skid control ECU)

INSPECTION PROCEDURE

NOTICE:

When replacing the VSC actuator assembly, perform zero point calibration BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION (2008 Sequoia) .

PROCEDURE

1.

RECONFIRM DTC

(a) Clear the DTC(s) BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

(b) Start the engine.

(c) Check if the same DTC(s) is output BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

Result

Result

Proceed to

DTC is output

A

DTC is not output

B

HINT:

The DTCs may be stored due to a malfunction in the connector terminal.

A