Open in Pump Motor Circuit - Vehicle Stability Control System

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1251/51: Open in Pump Motor Circuit

DTC C1251/51 - Open in Pump Motor Circuit

DESCRIPTION





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ABS MOTOR RELAY OPERATION)
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Select the Active Test mode on the intelligent tester .

ABS / VSC:





(d) Check the operation sound of the ABS motor individually when operating it with the intelligent tester.
OK:
The operation sound of the ABS motor should be heard.
NOTE: When replacing the brake actuator assembly, perform zero point calibration. Calibration

NG -- CHECK HARNESS AND CONNECTOR
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
2. CHECK HARNESS AND CONNECTOR
(a) Disconnect the skid control ECU connector.





(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NOTE: When replacing the brake actuator assembly, perform zero point calibration. Calibration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY