DTC    C1319/35    SCSS Changeover Solenoid Malfunction

for Preparation Click here


DESCRIPTION

The stroke simulator solenoid (SCSS) generates pedal reactive effort during ECB control. If one or more of the front wheels loses brake booster function, the simulator operation is prohibited.

DTC No.
INF Code
DTC Detection Condition
Trouble Area
C1319/35
71
When either of the following is detected:
  1. SCSS drive circuit is malfunctioning for 0.05 seconds or more.
  2. Short to +B in SCSS.
  1. Brake master stroke simulator cylinder assembly
  2. Wire harness or connector
  3. Skid control ECU
↑
72
Current leaks for 0.05 seconds or more when SCSS is off.
↑
↑
73
Open circuit in SCSS continues for 0.05 seconds or more.
↑
↑
74
Overcurrent in SCSS continues for 0.05 seconds or more.
↑

WIRING DIAGRAM


C109409E01


INSPECTION PROCEDURE

NOTICE:
When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration (Click here).

1.INSPECT BRAKE MASTER STROKE SIMULATOR CYLINDER ASSEMBLY


    B112635E01

  1. Disconnect the brake master stroke simulator cylinder assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Resistance:
    Tester Connection
    		Specified Condition
    1 (BSR) - 2 (SCSS)
    		22.3 to 38 Ω



NG
REPLACE BRAKE MASTER STROKE SIMULATOR CYLINDER ASSEMBLY
OK


2.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU TO BRAKE MASTER STROKE SIMULATOR CYLINDER)


    C110900E02

  1. Disconnect the skid control ECU connector and brake stroke simulator cylinder assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Resistance:
    Tester Connection
    		Specified Condition
    A13-31 (BSO3) - A22-1 (BSR)
    		Below 1 Ω
    A13-40 (SS) - A22-2 (SCSS)
    		Below 1 Ω

  1. Measure the resistance according to the value(s) in the table below.

    Resistance:
    Tester Connection
    		Specified Condition
    A13-31 (BSO3) - Body ground
    		10 kΩ or higher
    A13-40 (SS) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.RECONFIRM DTC

  1. Clear the DTC (Click here).

  1. Turn the engine switch on (IG).

  1. Check if the same DTC is recorded (Click here).

    HINT:
    Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs.


    Result:

    Condition
    		Proceed To
    DTC (C1319/35) is not output
    		A
    DTC (C1319/35) is output
    		B



B
REPLACE SKID CONTROL ECU
A

END