Suzuki WagonR+ RB310 Service Manual page 2167

3B1-26 ELECTRICAL POWER STEERING (EPS) SYSTEM (IF EQUIPPED)
TERMINAL
NO.
A1 Ground
A2 P/S control module power supply
from battery
A3 P/S control module power supply
from ignition switch
A4 VSS
A5 Engine speed signal
A6 "EPS" warning lamp
A7 Diagnosis switch terminal
A8 SUZUKI scan tool
B1 Motor output 2
B2 Motor output 1
B3 Clutch output 2
B4 Clutch output 1
C1 Torque sensor (Main)
C2 Torque sensor (Sub)
C3 Torque sensor (GND)
C4 5 V power supply for torque sensor
CIRCUIT NORMAL VOLTAGE
–
10 – 14 V
10 – 14 V
Indicator deflection
repeated 0 – 1 V and
9 – 11 V
About 1 V
0 – 2 V
10 – 14 V
About 5 V
–
5 – 7 V
5 – 7 V
0 V
10 – 14 V
About 2.5 V
About 2.5 V
0 V
About 5 V
CONDITION
–
–
Ignition switch is ON position
Ignition switch is ON position
Front left tire turned quickly with
right tire locked
Engine idling
Measured by multimeter
Engine idling
"EPS" light ON
Engine idling
"EPS" light OFF
Ignition switch is ON position
–
Engine idling and steering wheel
held at position for vehicle to run
straight
Engine idling
–
Engine idling
Ignition switch is ON position
Steering wheel held at position for
vehicle to run straight
Check voltage between "C1" and
"C3" terminals.
Ignition switch is ON
Steering wheel held at position for
vehicle to run straight
Check voltage between "C2" and
"C3" terminals.
–
Ignition switch is ON position
Check voltage between "C4" and
"C3" terminals.