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

ABS / VSC / TRAC:





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

NG -- INSPECT SKID CONTROL ECU (GND2 TERMINAL)
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
2. INSPECT SKID CONTROL ECU (GND2 TERMINAL)
(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 .

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GND2 CIRCUIT)
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY