CHECK AT ECU TERMINALS

TERMINAL VOLTAGE CHECK

1.Do not disconnect the ABS-ECU connector, and measure the voltages between earth terminal No.13 or No.38 and each respective terminal.

2.The terminal layout is shown in the illustration.

Terminal No.	Terminal code	Check item	Checking requirements	Normal condition
1	+BM	Motor power supply	Always	Battery voltage
2	IG1	ABS-ECU power supply(IG1)	Ignition switch: "ON"	Battery voltage
2	IG1	ABS-ECU power supply(IG1)	Ignition switch: "OFF"	1 V or less
3	-	-	-	-
4	CANL	CAN bus line	-	-
5-13	-	-	-	-
14	RDSW	Rear differential lock switch signal	-	-
15	-	-	-	-
16	CANH	CAN bus line	-	-
17-19	-	-	-	-
20	FL+	Wheel speed sensor (FL) power supply	Ignition switch: "ON"	Approximately system voltage
21	FL-	Wheel speed sensor (FL) signal	-	-
22	RR+	Wheel speed sensor (RR) power supply	Ignition switch: "ON"	Approximately system voltage
23	RR-	Wheel speed sensor (RR) signal	-	-
24	-	-	-	-
25	+BV	Solenoid valve power supply	Always	Battery voltage
26-31	-	-	-	-
32	FR+	Wheel speed sensor (FR) power supply	Ignition switch: "ON"	Approximately system voltage
33	FR-	Wheel speed sensor (FR) signal	-	-
34	RL+	Wheel speed sensor (RL) power supply	Ignition switch: "ON"	Approximately system voltage
35	RL-	Wheel speed sensor (RL) signal	-	-
36	COMB	Rear differential lock indicator signal	-	-
37, 38	-	-	-	-

1.Turn the ignition switch to the LOCK (OFF) position.

2.Disconnect the ABS-ECU connector.

3.Check the resistance and continuity between the terminals indicated in the table below.

4.The terminal layout is shown in the illustration.