Open in Pump Motor Circuit

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 TECHSTREAM (ABS MOTOR RELAY OPERATION)
(a) Connect the Techstream to the DLC3.
(b) Start the engine.
(c) Select the Active Test mode on the Techstream Data List / Active Test.

ABS/VSC/TRAC:





(d) Check the operation sound of the ABS motor individually when operating it with the Techstream.
OK:
The operation sound of the ABS motor should be heard.
NOTICE:
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:





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

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