Test A: DTC C1300 - ABS Hydraulic Pump Motor Circuit Failure
Test A: DTC C1300 - ABS Hydraulic Pump Motor Circuit FailureRefer to Vehicle/Diagrams for schematic and connector information.
Normal Operation
Fused battery voltage is provided to the anti-lock brake (ABS) module from battery junction box fuses 109 (20A) and 106 (40A) along circuits 483 (RD) and 601 (LB/PK) respectively. Fused ignition voltage is provided from central junction box (CJB) fuse 13 (10A) along circuit 1003 (GY/YE). When necessary, the ABS module supplies voltage to the hydraulic control unit (HCU) assembly and the pump motor is activated. The ABS module is provided a ground along circuit 57 (BK) and the hydraulic pump motor is provided a ground internally through the HCU.
Possible Causes
^ Fuse(s)
^ Circuit open
^ Circuit shorted
^ ABS module
^ HCU assembly
A1-A3:
A4-A6:
