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 (SMC 1/2) 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 fluid pressure to the non-assisted brake wheel cylinders during the fail-safe operation when the system is malfunctioning.
DTC Code | Information Code | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1315/31 | 61 | When either of the following is detected:
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|
↑ | 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 | When 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 front increasing pressure solenoid RH continues for 0.05 seconds or more when front increasing pressure solenoid RH is off. |
|
↑ | 12 | Open circuit in front increasing pressure solenoid RH continues for 0.05 seconds or more when front increasing pressure solenoid RH is on. | ↑ |
↑ | 13 | Short to power supply or voltage leak in front increasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
↑ | 14 | Overcurrent in front increasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
C1353/23 | 21 | Open circuit in front increasing pressure solenoid LH continues for 0.05 seconds or more when front increasing pressure solenoid LH is off. |
|
↑ | 22 | Open circuit in front increasing pressure solenoid LH continues for 0.05 seconds or more when front increasing pressure solenoid LH is on. | ↑ |
↑ | 23 | Short to power supply or voltage leak in front increasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
↑ | 24 | Overcurrent in front increasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
C1354/25 | 31 | Open circuit in rear increasing pressure solenoid RH continues for 0.05 seconds or more when rear increasing pressure solenoid RH is off. |
|
↑ | 32 | Open circuit in rear increasing pressure solenoid RH continues for 0.05 seconds or more when rear increasing pressure solenoid RH is on. | ↑ |
↑ | 33 | Short to power supply or voltage leak in rear increasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
↑ | 34 | Overcurrent in rear increasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
C1355/27 | 41 | Open circuit in rear increasing pressure solenoid LH continues for 0.05 seconds or more when rear increasing pressure solenoid LH is off. |
|
↑ | 42 | Open circuit in rear increasing pressure solenoid LH continues for 0.05 seconds or more when rear increasing pressure solenoid LH is on. | ↑ |
↑ | 43 | Short to power supply or voltage leak in rear increasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
↑ | 44 | Overcurrent in rear increasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
C1356/22 | 16 | Open circuit in front decreasing pressure solenoid RH continues for 0.05 seconds or more when front decreasing pressure solenoid RH is off. |
|
↑ | 17 | Open circuit in front decreasing pressure solenoid RH continues for 0.05 seconds or more when front decreasing pressure solenoid RH is on. | ↑ |
↑ | 18 | Short to power supply or voltage leak in front decreasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
↑ | 19 | Overcurrent in front decreasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
C1357/24 | 26 | Open circuit in front decreasing pressure solenoid LH continues for 0.05 seconds or more when front decreasing pressure solenoid LH is off. |
|
↑ | 27 | Open circuit in front decreasing pressure solenoid LH continues for 0.05 seconds or more when front decreasing pressure solenoid LH is on. | ↑ |
↑ | 28 | Short to power supply or voltage leak in front decreasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
↑ | 29 | Overcurrent in front decreasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
C1358/26 | 36 | Open circuit in rear decreasing pressure solenoid RH continues for 0.05 seconds or more when rear decreasing pressure solenoid RH is off. |
|
↑ | 37 | Open circuit in rear decreasing pressure solenoid RH continues for 0.05 seconds or more when rear decreasing pressure solenoid RH is on. | ↑ |
↑ | 38 | Short to power supply or voltage leak in rear decreasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
↑ | 39 | Overcurrent in rear decreasing pressure solenoid RH continues for 0.05 seconds or more. | ↑ |
C1359/28 | 46 | Open circuit in rear decreasing pressure solenoid LH continues for 0.05 seconds or more when rear decreasing pressure solenoid LH is off. |
|
↑ | 47 | Open circuit in rear decreasing pressure solenoid LH continues for 0.05 seconds or more when rear decreasing pressure solenoid LH is on. | ↑ |
↑ | 48 | Short to power supply or voltage leak in rear decreasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
↑ | 49 | Overcurrent in rear decreasing pressure solenoid LH continues for 0.05 seconds or more. | ↑ |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
When replacing the skid control ECU or brake actuator, perform initialization of linear solenoid valve and calibration Click here.
PROCEDURE
INSPECT BRAKE ACTUATOR
Figure 1. for LHD:
Figure 2. for RHD:
Disconnect the A27 actuator connector.
Measure the resistance according to the value(s) in the table below.
Standard resistance | |||||||||||||||||||||||||||||||||
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for LHD | |||||||||||||||||||||||||||||||||
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|||||||||||||||||||||||||||||||||
for RHD | |||||||||||||||||||||||||||||||||
|
NG |
REPLACE BRAKE ACTUATOR Click here |
OK |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BRAKE ACTUATOR)
Disconnect the A19 and A21 ECU connectors.
Figure 3. for LHD:
Figure 4. for RHD:
Disconnect the A27 actuator connector.
Measure the resistance according to the value(s) in the table below.
Standard resistance | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
for LHD | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
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for RHD | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Measure the resistance according to the value(s) in the table below.
Standard resistance | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
RECONFIRM DTC
Clear the DTC Click here.
Turn the engine switch on (IG).
Check if the same DTCs are recorded Click here.
Tech Tips
Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs.
Result | Proceed to |
---|---|
DTCs (C1315/31, C1316/32, C1352/21, C1353/23, C1354/25, C1355/27, C1356/22, C1357/24, C1358/26 and C1359/28) are not output | A |
DTCs (C1315/31, C1316/32, C1352/21, C1353/23, C1354/25, C1355/27, C1356/22, C1357/24, C1358/26 and C1359/28) are output | B |
A |
END |
B |
REPLACE SKID CONTROL ECU Click here |