Eps Control Unit Diagram (Lt-A750Xp/Zk9) - Suzuki kq750 Service Manual

6C-7 Power Assisted Steering System:

EPS Control Unit Diagram (LT-A750XP/ZK9)

Refer to "Wire Color Symbols in Section 0A in related manual".
Speedometer
Speed sensor
(Vehicle speed)
TACHO
ECM
Torque sensor
12 11
14 13
Y
Bl/B
W
31
R
G
W
B
EPS control unit coupler (EPS control unit harness end)
10 9
1. Engine speed signal
2. Ignition signal for EPS control unit
3. Mode select switch
4. "EPS" warning light
5. Vehicle speed signal
6. SDS
7. Ground for EPS control unit
EPS countrol unit
O/Y
2
8
R/B
4
Fail-safe
relay
5
10 B
1
R
9
Motor drive circuit
B/W
7
12
Gr/R
6
11
14
13
3
W/R
8
8. Power source
9. Motor output (–)
10. Motor output (+)
11. Torque sensor signal (Main)
12. Power supply for torque sensor
13. Ground for torque sensor
14. Torque sensor signal (Sub)
Ignition
switch
30 A
MAIN
40 A
EPS
EPS
motor
SDS
Mode selsct switch
7
3
6
B931G46302002
I931G3630071-01
2 1
5 4
I931H1630092-01