Brake Actuator: Inspection: Procedure

INSPECT BRAKE ACTUATOR

Disconnect the negative battery cable.
Refer to REMOVAL
Disconnect the brake actuator connector.
Refer to REMOVAL
Connect the negative battery cable.
Refer to INSTALLATION

Attach the tester lead to the brake actuator wiring harness-side connector and inspect voltage, continuity, or resistance according to the Terminal Voltage Table (Reference) on the table.

Terminal Voltage Table (Reference)

Brake Actuator Wiring Harness-Side Connector

Terminal	Signal name	Connected to	Measured item	Measured terminal (measurement condition)	Specification	Inspection item(s)
1	Power supply (solenoid operation)	Battery	Voltage	Under any condition	B+	Wiring harness (Brake actuator terminal 1 - battery)
15	Power supply (solenoid operation)	Battery	Voltage	Under any condition	B+	Wiring harness (Brake actuator terminal 15 - battery)
2	RF speed sensor (-)	RF speed sensor	Continuity	Brake actuator terminal 2 - RF speed sensor terminal 15	Continuity detected	Wiring harness (Brake actuator terminal 2 - RF speed sensor terminal 15)
16	-	-	-	-	-	-
28	-	-	-	-	-	-
3	RF speed sensor (+)	RF speed sensor	Continuity	Brake actuator terminal 3 - RF speed sensor terminal 1	Continuity detected	Wiring harness (Brake actuator terminal 3 - RF speed sensor terminal 1)
17	-	-	-	-	-	-
29	-	-	-	-	-	-
4	-	-	-	-	-	-
18	-	-	-	-	-	-
30	-	-	-	-	-	-
5	LR speed sensor (+)	LR speed sensor	Continuity	Brake actuator terminal 5 - LR speed sensor terminal 1	Continuity detected	Wiring harness (Brake actuator terminal 5 - LR speed sensor terminal 1)
19	-	-	-	-	-	-
31	-	-	-	-	-	-
6	LR speed sensor (-) LR ABS wheel	LR speed sensor	Continuity	Brake actuator terminal 6 - LR speed sensor terminal 15	Continuity detected	Wiring harness (Brake actuator terminal 6 - LR speed sensor terminal 15)
20	-	-	-	-	-	-
32	Power supply (system)	IG1 relay	Voltage	Ignition ON (engine off)	B+	Wiring harness (Brake actuator terminal 32 - IG1 relay)
32	Power supply (system)	IG1 relay	Voltage	Ignition off	1.0 V or less	Wiring harness (Brake actuator terminal 32 - IG1 relay)
7	-	-	-	-	-	-
21	-	-	-	-	-	-
33	-	-	-	-	-	-
8	-	-	-	-	-	-
22	-	-	-	-	-	-
34	-	-	-	-	-	-
9	RR speed sensor (-)	RR speed sensor	Continuity	Brake actuator terminal 9 - RR speed sensor terminal 15	Continuity detected	Wiring harness (Brake actuator terminal 9 - RR speed sensor terminal 15)
23	-	-	-	-	-	-
35	-	-	-	-	-	-
10	RR speed sensor (+)	RR speed sensor	Continuity	Brake actuator terminal 10 - RR speed sensor terminal 1	Continuity detected	Wiring harness (Brake actuator terminal 10 - RR speed sensor terminal 1)
24	-	-	-	-	-	-
36	CAN_L	CAN related module	Because this terminal is for communication, determination using terminal voltageinspection is not possible. Perform the inspection using the DTC inspection.
11	-	-	-	-	-	-
25	-	-	-	-	-	-
37	CAN_H	CAN relatedmodule	Because this terminal is for communication, determination using terminal voltage inspection is not possible. Perform the inspection using the DTC inspection.
12	LF speed sensor (+)	LF speed sensor	Continuity	Brake actuator terminal 12 - LF speed sensor terminal 1	Continuity detected	Wiring harness (12 - LF speed sensor terminal 1)
26	-	-	-	-	-	-
38	-	-	-	-	-	-
13	LF speed sensor (-)	LF speed sensor	Continuity	Brake actuator terminal 13 - LF speed sensor terminal 15	Continuity detected	Wiring harness (Brake actuator terminal 13 - LF speed sensor terminal 15)
14	-	-	-	-	-	-
27	Ground	Ground point	Continuity	Brake actuator terminal 27 - ground point	Continuity detected	Wiring harness (Brake actuator terminal 27 - ground point)