DTC Code | DTC Name |
---|---|
C1315/31 | SMC1 Changeover Solenoid Malfunction |
C1316/32 | SMC2 Changeover Solenoid Malfunction |
C1352/21 | Front Increasing Pressure Solenoid RH Malfunction |
C1353/23 | Front Increasing Pressure Solenoid LH Malfunction |
C1354/25 | Rear Increasing Pressure Solenoid RH Malfunction |
C1355/27 | Rear Increasing Pressure Solenoid LH Malfunction |
C1356/22 | Front Decreasing Pressure Solenoid RH Malfunction |
C1357/24 | Front Decreasing Pressure Solenoid LH Malfunction |
C1358/26 | Rear Decreasing Pressure Solenoid RH Malfunction |
C1359/28 | Rear Decreasing Pressure Solenoid LH Malfunction |
DESCRIPTION
Each solenoid adjusts pressure which affects each wheel cylinder according to signals from the skid control ECU and controls the vehicle.
The master cut solenoid (SMC1/2) is closed and blocks the master cylinder pressure from the electronically controlled brake system control pressure when the system is normal. The master cut solenoid is open and sends the master cylinder hydraulic pressure to the non-assisted brake wheel cylinders during the fail safe due to a system malfunction.
DTC Code | INF Code | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1315/31 | 61 | Either of the following is detected:
|
|
↑ | 62 | Current leaks for 0.05 seconds or more when SMC1 is off. | ↑ |
↑ | 63 | Open circuit in SMC1 continues for 0.05 seconds or more. | ↑ |
↑ | 64 | Overcurrent in SMC1 continues for 0.05 seconds or more. | ↑ |
C1316/32 | 66 | Either of the following is detected:
|
|
↑ | 67 | Current leaks for 0.05 seconds or more when SMC2 is off. | ↑ |
↑ | 68 | Open circuit in SMC2 continues for 0.05 seconds or more. | ↑ |
↑ | 69 | Overcurrent in SMC2 continues for 0.05 seconds or more. | ↑ |
C1352/21 | 11 | Open circuit in FRA continues for 0.05 seconds or more when FRA is off. |
|
↑ | 12 | Open circuit in FRA continues for 0.05 seconds or more when FRA is on. | ↑ |
↑ | 13 | Short to +B or voltage leak in FRA continues for 0.05 seconds or more. | ↑ |
↑ | 14 | Overcurrent in FRA continues for 0.05 seconds or more. | ↑ |
C1353/23 | 21 | Open circuit in FLA continues for 0.05 seconds or more when FLA is off. |
|
↑ | 22 | Open circuit in FLA continues for 0.05 seconds or more when FLA is on. | ↑ |
↑ | 23 | Short to +B or voltage leak in FLA continues for 0.05 seconds or more. | ↑ |
↑ | 24 | Overcurrent in FLA continues for 0.05 seconds or more. | ↑ |
C1354/25 | 31 | Open circuit in RRA continues for 0.05 seconds or more when RRA is off. |
|
↑ | 32 | Open circuit in RRA continues for 0.05 seconds or more when RRA is on. | ↑ |
↑ | 33 | Short to +B or voltage leak in RRA continues for 0.05 seconds or more. | ↑ |
↑ | 34 | Overcurrent in RRA continues for 0.05 seconds or more. | ↑ |
C1355/27 | 41 | Open circuit in RLA continues for 0.05 seconds or more when RLA is off. |
|
↑ | 42 | Open circuit in RLA continues for 0.05 seconds or more when RLA is on. | ↑ |
↑ | 43 | Short to +B or voltage leak in RLA continues for 0.05 seconds or more. | ↑ |
↑ | 44 | Overcurrent in RLA continues for 0.05 seconds or more. | ↑ |
C1356/22 | 16 | Open circuit in FRR continues for 0.05 seconds or more when FRR is off. |
|
↑ | 17 | Open circuit in FRR continues for 0.05 seconds or more when FRR is on. | ↑ |
↑ | 18 | Short to +B or voltage leak in FRR continues for 0.05 seconds or more. | ↑ |
↑ | 19 | Overcurrent in FRR continues for 0.05 seconds or more. | ↑ |
C1357/24 | 26 | Open circuit in FLR continues for 0.05 seconds or more when FLR is off. |
|
↑ | 27 | Open circuit in FLR continues for 0.05 seconds or more when FLR is on. | ↑ |
↑ | 28 | Short to +B or voltage leak in FLR continues for 0.05 seconds or more. | ↑ |
↑ | 29 | Overcurrent in FLR continues for 0.05 seconds or more. | ↑ |
C1358/26 | 36 | Open circuit in RRR continues for 0.05 seconds or more when RRR is off. |
|
↑ | 37 | Open circuit in RRR continues for 0.05 seconds or more when RRR is on. | ↑ |
↑ | 38 | Short to +B or voltage leak in RRR continues for 0.05 seconds or more. | ↑ |
↑ | 39 | Overcurrent in RRR continues for 0.05 seconds or more. | ↑ |
C1359/28 | 46 | Open circuit in RLR continues for 0.05 seconds or more when RLR is off. |
|
↑ | 47 | Open circuit in RLR continues for 0.05 seconds or more when RLR is on. | ↑ |
↑ | 48 | Short to +B or voltage leak in RLR continues for 0.05 seconds or more. | ↑ |
↑ | 49 | Overcurrent in RLR continues for 0.05 seconds or more. | ↑ |
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
When replacing the skid control ECU or brake actuator assembly, perform initialization and calibration of the linear solenoid valve Click here.
PROCEDURE
INSPECT BRAKE ACTUATOR ASSEMBLY
Make sure that there is no looseness at the locking part and the connecting part of the connector.
*1 | Component without harness connected (Brake Actuator) |
- | - |
Disconnect the brake actuator connector.
Measure the resistance according to the value(s) in the table below.
Tech Tips
Check the brake actuator assembly when it is cooled down.
Standard Resistance | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPLACE BRAKE ACTUATOR ASSEMBLY Click here |
OK |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BRAKE ACTUATOR)
Make sure that there is no looseness at the locking part and the connecting part of the connector.
*1 | Front view of wire harness connector (to Skid Control ECU) |
*2 | Front view of wire harness connector (to Brake Actuator) |
Disconnect the skid control ECU connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
RECONFIRM DTC
Reconnect the skid control ECU connectors and the brake actuator connector.
Clear the DTCs Click here.
Turn the power switch on (READY).
Check if the same DTC is recorded Click here.
Result | ||||||
---|---|---|---|---|---|---|
|
B |
REPLACE SKID CONTROL ECU Click here |
A |
CHECK FOR INTERMITTENT PROBLEMS Click here