Subaru Crosstrek Service Manual: Electrical specification

Subaru Crosstrek Service Manual / Power assisted system (power steering) (diagnostics) / Control module i/o signal / Electrical specification

POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS) > Control Module I/O Signal

ELECTRICAL SPECIFICATION

NOTE:

The terminal numbers of the power steering control module connectors are as indicated in the figure.

Contents	Terminal No.	Input/output signal
Contents	Terminal No.	Measured value and measuring conditions
Power supply (IG SW)	A1	Battery voltage is detected with the ignition switch ON when measuring between A1 — B1.
Subaru Select Monitor communication line	A2	Digital signal; can not be measured
Shield GND	A3	0 V is constantly detected.
Main torque sensor	A4	The voltage changes when the steering is operated to the right or left with the ignition switch ON.
Sub torque sensor	A5	The voltage changes when the steering is operated to the right or left with the ignition switch ON.
CAN communication	A6	Digital signal; can not be measured
CAN communication	A7	Digital signal; can not be measured
Torque sensor operating power supply	A8	Approximately 8 V is detected with ignition switch ON.
Torque sensor ground	A9	0 V is constantly detected.
Torque sensor standard power supply	A10	Approximately 3 V is detected with ignition switch ON.
Ground	B1	Battery voltage is constantly detected when measuring between B1 — B2.
Power supply	B2
Resolver S1	C1	Varies depending on the operational status of the motor.
Resolver S3	C2
Resolver S2	C3
Resolver S4	C4
Excitation power supply for resolver	C5
Common output	C6
Motor U phase	D1	Varies depending on the motor output.
Motor V phase	D2
Motor W phase	D3

Wiring diagram

POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS) > Control Module I/O SignalWIRING DIAGRAM(1)Battery(5)Engine control module (ECM)(9)Torque sensor (main & sub)(2)Ignition switch(6)Power ste ...

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