Anti-Lock Braking Systems (ABS) for Trucks ... - Meritor WABCO

Section 3TroubleshootingAdditional 6S/6M and 6S/4M blink codes follow this table.Fault CodeBlink Code* Location Cause Solution1-13-82-13-84-13-81-13-92-13-94-13-9Voltage Relay 1Voltage Relay 2Power supply voltage too high.Table B — Additional 6S/6M or 6S/4M Blink Codes: 4 = 6S/4M, 1 = 6S/6MRepair vehicle power supply.* First digit of Blink Code identifies system configuration: 1 = 6S/6M, 2 = 4S/4M, 4 = 6S/4M.Fault CodeBlink Code Axle 3Left1-7-84-7-81-7-104-7-101-7-124-7-12Right1-7-94-7-91-7-114-7-111-7-134-7-131-9-10 1-9-111-9-12 1-9-131-9-14 1-9-151-10-0 1-10-11-12-0 1-12-11-12-12 1-12-13CauseErratic wheel speed fromthird axle.Sensor circuit failure onthird axle.Third axle sensor out ofadjustment.Short circuit to ground in thirdaxle ABS valve or cable.Open circuit in third axle ABSvalve or cable.Short circuit to ground in thirdaxle ABS valve or cable.Open circuit in third axle ABSvalve or cable.Short circuit in connectionbetween third axle ABS valveand battery.Short circuit in connectionbetween third axle ABS valveand battery.SolutionCheck for loose wheel bearings, faulty sensorwiring connections, excessive hub runout,sensor gap that is too wide or damage to toothwheels on third axle.Check sensor, sensor cable and cableconnections.Adjust sensors on third axle. Check fordifferences between steer and rear tire sizes.Check ABS valve and cable. Replace as required.Check ABS valve and cable. Replace as required.Check ABS valve and cable. Replace as required.Check ABS valve and cable. Replace as required.Check ABS valve and cable. Replace as required.Check ABS valve and cable. Replace as required.Page 16