ELECTRONIC POWER STEERING SYSTEM > TERMINALS OF ECU

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TERMINALS OF ECU

C110598E03


HINT:
The power steering ECU assembly uses waterproof connectors. Therefore, voltage or waveforms cannot be checked with the connectors connected to the vehicle.

Terminal No. (Symbols)
Wiring Color
Terminal Description
P43-1 (WDD1)
R-Y
Power steering converter malfunction signal 1
P43-2 (CANH)
B
High-level CAN bus line
P43-3 (CANL)
W
Low-level CAN bus line
P43-4 (PIG)
W
Power source
P43-5 (PGND)
B
Power ground
P43-6 (+B)
B-W
Battery power source
P43-8 (WDD2)
R-G
Power steering converter malfunction signal 2
P43-9 (IG)
Y
IG power source
P43-10 (SIL)
L
Diagnosis communication signal
P43-11 (DRDD)
Y-B
Power steering converter power output
P42-1 (TRQV)
L
Torque sensor power source
P42-2 (RZV)
G
Rotation angle sensor power source
P42-3 (RZCS)
R
COS phase input signal (Rotation angle sensor)
P42-4 (RZSN)
B
SIN phase input signal (Rotation angle sensor)
P42-5 (U)
B
U phase motor output
P42-6 (W)
R
W phase motor output
P42-7 (INSN)
R
SIN phase input signal (torque sensor input shaft side)
P42-8 (INCS)
B
COS phase input signal (torque sensor input shaft side)
P42-9 (OUSN)
G
SIN phase input signal (torque sensor output shaft side)
P42-10 (OUCS)
W
COS phase input signal (torque sensor output shaft side)
P42-11 (V)
W
V phase motor output
P42-12 (TQG1)
B-W
Torque sensor power source circuit ground
P42-13 (RZG)
W
Rotation angle sensor power source circuit ground
P42-14 (TQG2)
Y
Torque sensor detection circuit ground


INSPECT WIRE HARNESS SIDE CONNECTOR

C110599E03


Terminal No. (Symbols)
Wiring Color
Terminal Description
Condition
Specified Condition
P43-5 (PGND) - Body ground
B - Body ground
Power ground
Always
Below 1 Ω
P43-6 (+B) - P43-5 (PGND)
B-W - B
Battery power source
Always
10 to 14 V
P43-9 (IG) - P43-5 (PGND)
Y - B
IG power source
IG switch ON
10 to 14 V
P42-5 (U) - P42-6 (W)/P42-11 (V)
B - R/W
U phase motor output
Always
Below 1 Ω
P42-6 (W) - P42-5 (U)/P42-11 (V)
R - B/W
W phase motor output
Always
Below 1 Ω
P42-11 (V) - P42-5 (U)/P42-6 (W)
W - B/R
V phase motor output
Always
Below 1 Ω