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Standard (Reference)

Fig 1: Identifying DSC HU/CM Connector Terminals
G09783073Courtesy 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 A Continuity detected
  • Wiring harness (C-RF ABS wheel-speed sensor terminal A)
D - - - - - -
E - - - - - -
F RF wheel-speed (+) RF ABS wheel-speed sensor Continuity F-RF ABS wheel-speed sensor terminal B Continuity detected
  • Wiring harness (F-RF ABS wheel-speed sensor terminal B)
G - - - - - -
H - - - - - -
I - - - - - -
J - - - - - -
K - - - - - -
L LR wheel-speed (+) LR ABS wheel-speed sensor Continuity L-LR ABS wheel-speed sensor terminal A Continuity detected
  • Wiring harness (L-LR ABS wheel-speed sensor terminal A)
M - - - - - -
N -- - - - - -
O LR wheel-speed (-) LR wheel-speed sensor Continuity 0-LR ABS wheel-speed sensor terminal B Continuity detected
  • Wiring harness (0-LR ABS wheel-speed sensor terminal B)
P - - - - - -
Q Power supply (system) IG1 relay Voltage Ignition switched ON (engine off). B+
  • Wiring harness (Q-IG1 relay)
Switch the ignition to off. 1 V or less
R - - - - - -
S - - - - - -
T - - - - - -
U - - - - - -
V - - - - - -
W - - - - - -
X RR wheel-speed (-) RR ABS wheel-speed sensor Continuity X-RR ABS wheel-speed sensor terminal B Continuity detected
  • Wiring harness (X-RR ABS wheel-speed sensor terminal B)
Y - - - - - -
Z - - - - - -
AA RR wheel-speed (+) RR ABS wheel-speed sensor Continuity AA-RR ABS wheel-speed sensor terminal A Continuity detected
  • Wiring harness (AA- RR ABS wheel-speed sensor terminal A)
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 B Continuity detected
  • Wiring harness (AG-LF ABS wheel-speed sensor terminal B)
AH - - - - - -
AI Brake light Brake light relay Voltage Brake pedal depressed B+
  • Wiring harness (Al- Brake light relay terminal D)
Brake pedal released 1 V or less
AJ LF wheel-speed sensor (-) LF wheel-speed sensor Continuity AJ-LF ABS wheel-speed sensor terminal A Continuity detected
  • Wiring harness (AJ-LF ABS wheel-speed sensor terminal A)
AK - - - - - -
AL Ground Ground point Continuity AL-ground point Continuity detected
  • Wiring harness (AL- ground point)
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