DTC Code | DTC Name |
---|---|
C1311/11 | Open in Main Relay 1 Circuit |
C1312/12 | Short in Main Relay 1 Circuit |
C1313/13 | Open in Main Relay 2 Circuit |
C1314/14 | Short in Main Relay 2 Circuit |
DESCRIPTION
The ABS main relay (skid control ECU interior circuit) remains ON for approximately 2 minutes after the engine switch is turned off and the input of brake operation signals stops, and supplies power to the system to keep it ready to operate.
DTC Code | Information Code | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1311/11 | 1 | When either of the following is detected:
|
|
C1312/12 | 3 | Relay contact is on (BSO1 terminal is 6.5 V or more) for at least 1 second when main relay 1 is off. |
|
C1313/13 | 4 | When any of the following is detected:
|
|
C1314/14 | 6 | Relay contact is on (BSO2 terminal is 6.5 V or more) for at least 1 sec. when main relay 2 is off. |
|
WIRING DIAGRAM
Refer to DTCs C1241/41 and C1242/42 Click here.
CAUTION / NOTICE / HINT
Note
When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Click here.
PROCEDURE
INSPECT FUSE (D-IG1-3, ECU-IG, ABS MAIN1, ABS MAIN2, ABS MAIN3)
Remove the D-IG1-3, ECU-IG, ABS MAIN1, ABS MAIN2 and ABS MAIN3 fuses.
Measure the resistance of the fuses.
Standard resistance | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPLACE FUSE |
OK |
CHECK HARNESS AND CONNECTOR (+BI1, +BI2, +BI3, +BI4)
*1 | Front view of wire harness connector: (to Skid Control ECU) |
Disconnect the A19 and A21 ECU connectors.
Measure the voltage according to the value(s) in the table below.
Standard voltage | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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.
Condition | Proceed to |
---|---|
DTCs (C1311/11, C1312/12, C1313/13 and C1314/14) are not output | A |
DTCs (C1311/11, C1312/12, C1313/13 and C1314/14) are output | B |
A |
END |
B |
REPLACE SKID CONTROL ECU Click here |