DTC C1428: Motor Circuit Malfunction [11/2016 - ]: Procedure

1. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Skid Control ECU (Brake Actuator Assembly))

2. Disconnect the A85 skid control ECU (brake actuator assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A85-1 (GND2) - Body ground	Always	Below 1 Ω

Result:

OK 

REPLACE BRAKE ACTUATOR ASSEMBLY. 

Refer to REMOVAL [11/2016 - ]

Result:

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (GND2 CIRCUIT)