Standard (Reference)

Fig 1: DSC HU/Control Module Connector Terminals

Courtesy of MAZDA MOTORS CORP.

Terminal	Signal Name	Connected To	Measured Item	Measured Terminal (Measurement Condition)	Standard	Inspection Item(s)
A	Power supply (solenoid operation)	Battery	Voltage	Under any condition	B+	Wiring harness (A-battery)
B	Power supply (motor operation)	Battery	Voltage	Under any condition	B+	Wiring harness (B-battery)
C	RF wheel-speed (-)	RF ABS wheel-speed sensor	Continuity	C-RF ABS wheel-speed sensor terminal B	Continuity detected	Wiring harness (C-RF ABS wheel-speed sensor terminal B)
D	-	-	-	-	-	-
E	-	-	-	-	-	-
F	RF wheel-speed (+)	RF ABS wheel-speed sensor	Continuity	F-RF ABS wheel-speed sensor terminal A	Continuity detected	Wiring harness (F-RF ABS wheel-speed sensor terminal A)
G	-	-	-	-	-	-
H	-	-	-	-	-	-
I	-	-	-	-	-	-
J	-	-	-	-	-	-
K	-	-	-	-	-	-
L	LR wheel-speed (+)	LR ABS wheel-speed sensor	Continuity	L-LR ABS wheel-speed sensor terminal B	Continuity detected	Wiring harness (L-LR ABS wheel-speed sensor terminal B)
M	-	-	-	-	-	-
N	-	-	-	-	-	-
O	LR wheel-speed (-)	LR wheel-speed sensor	Continuity	O-LR ABS wheel-speed sensor terminal D	Continuity detected	Wiring harness (O-LR ABS wheel-speed sensor terminal D)
P	-	-	-	-	-	-
Q	Power supply (system)	Ignition switch	Voltage	Ignition switched ON (engine off).	B+	Wiring harness (Q-ignition switch)
Q	Power supply (system)	Ignition switch	Voltage	Switch the ignition to off.	1 V or less	Wiring harness (Q-ignition switch)
R	-	-	-	-	-	-
S	-	-	-	-	-	-
T	-	-	-	-	-	-
U	-	-	-	-	-	-
V	-	-	-	-	-	-
W	-	-	-	-	-	-
X	RR wheel-speed (-)	RR ABS wheel-speed sensor	Continuity	X-RR ABS wheel-speed sensor terminal D	Continuity detected	Wiring harness (X-RR ABS wheel-speed sensor terminal D)
Y	-	-	-	-	-	-
Z	-	-	-	-	-	-
AA	RR wheel-speed (+)	RR ABS wheel-speed sensor	Continuity	AA-RR ABS wheel-speed sensor terminal B	Continuity detected	Wiring harness (AA-RR ABS wheel-speed sensor terminal B)
AB	-	-	-	-	-	-
AC	CAN_L	CAN module	This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
AD	-	-	-	-	-	-
AE	-	-	-	-	-	-
AF	CAN_H	CAN module	This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
AG	LF wheel-speed sensor (+)	LF ABS wheel-speed sensor	Continuity	AG-LF ABS wheel-speed sensor terminal A	Continuity detected	Wiring harness (AG-LF ABS wheel-speed sensor terminal A)
AH	-	-	-	-	-	-
AI	Brake light	Brake light relay or brake light unit	Voltage	Brake pedal depressed	B+	Wiring harness (AI-brake light relay or brake light unit)
AI	Brake light	Brake light relay or brake light unit	Voltage	Brake pedal released	1 V or less	Wiring harness (AI-brake light relay or brake light unit)
AJ	LF wheel-speed sensor (-)	LF wheel-speed sensor	Continuity	AJ-LF ABS wheel-speed sensor terminal B	Continuity detected	Wiring harness (AJ-LF ABS wheel-speed sensor terminal B)
AK	-	-	-	-	-	-
AL	Ground	Ground point	Continuity	AL-ground point	Continuity detected	Wiring harness (AL-ground point)