DTC C1311/11 Open in Main Relay 1 Circuit; DTC C1312/12 Short in Main Relay 1 Circuit; DTC C1313/13 Open in Main Relay 2 Circuit; DTC C1314/14 Short in Main Relay 2 Circuit: Description

ABS main relay 1 (ABS No.1 relay) supplies power to the changeover solenoid and the linear solenoid.

ABS main relay 2 (ABS No.2 relay) goes on for approximately 5 seconds after the ignition switch is turned off and the braking effort signal input is terminated. ABS main relay 2 (ABS No.2 relay) supplies electricity and maintains operating condition for the brake system when the ignition switch is off.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	INF Code	DTC Detection Condition	Trouble Area
C1311/11	1	Relay contact is off (BS 1 terminal is less than 3.5 V) for at least 0.2 sec. when R1+ terminal voltage is 9.5 V or more and main relay 1 is on. R1 + terminal voltage is less than 9.5 V and main relay 1 cannot be on for at least 0.2 sec. when main relay 1 is turned on (BS 1 terminal is 3.5 V or more).	ABS main relay 1 (ABS No.1 relay) Skid control ECU Harness and connector
C1312/12	3	Relay contact is on for at least 4 sec. when main relay 1 is off.	ABS main relay 1 (ABS No.1 relay) Skid control ECU Harness and connector
C1313/13	4	Relay contact is off (BS2 terminal is less than 3.5 V) for at least 0.2 sec. when R2+ terminal voltage is 9.5 V or more and main relay 2 is on. R2+ terminal voltage is less than 9.5 V and main relay 2 cannot be on for at least 2 sec. when main relay 2 is turned on (BS 1 terminal is 3.5 V or more).	ABS main relay 2 (ABS No.2 relay) Skid control ECU Harness and connector
C1314/14	6	Relay contact is on for at least 4 sec. when main relay 2 is off.	ABS main relay 2 (ABS No.2 relay) Skid control ECU Harness and connector