P/S Motor And Its Circuit Inspection - Suzuki 2006 SX4 Service Manual

6C-42 Power Assisted Steering System:
5) Turn ON ignition switch without engine running and
select scan tool "Data List" mode due to checking
"Sensor (Main) Torque" and "Sensor (Sub) Torque"
displayed on scan tool when steering wheel turned
left and right (if used).
6) Check that characteristic of torque sensor (main and
sub) output voltage or scan tool data and steering
force is as following graph when steering wheel is
turned left and right. If sensor voltage or scan tool
data is out of specified value or does not vary linearly
as the following graph, check EPS control module
and its circuit referring to "Inspection of P/S Control
Module and Its Circuits".
If they are OK, replace steering gear case assembly.
[A]
[F]
[V]
-12.0
5
(3.7 - 4.0)
3.0 - 3.4
0 2.33 - 2.68
1.65 - 1.9
(1.0 - 1.3)
0
11.5
11.76 6
[C]
MAX
[B]
[G]
[V]
11.5 5
(3.7 - 4.0)
3.0 - 3.4
2.33 - 2.68
0
1.65 - 1.9
(1.0 - 1.3)
0
-12.0
11.76 6
[C]
MAX
[A]: Main sensor
[B]: Sub sensor
[C]: Steering force at left turn
[D]: Steering force at right turn
[E]: Steering wheel at free
[F]: "Sensor (Main) Torque" in "Data List" displayed on scan tool
[G]: "Sensor (Sub) Torque" in "Data List" displayed on scan tool
0 6 11.76
[N.m]
[D]
[E]
MAX
0 6 11.76
[N.m]
[D]
[E] MAX
I7RW01632011-02

P/S Motor and Its Circuit Inspection

1) Check motor circuit referring to Step 2 to 3 of "DTC
C1141 / C1142 / C1143 / C1145: Motor Circuit
Failure". If check result is not satisfactory, repair
motor circuit.
2) Disconnect motor connector from steering gear case
assembly with ignition switch turned OFF.
3) Check for resistance between terminals of motor
connector.
If check result is not as specified, check P/S motor
harness for continuity. If it is OK, replace steering
gear case assembly.
Motor circuit resistance
"E12-1" and "E12-2" (For motor)
4) Check for insulation between each terminal of motor
connector and body ground.
If check result is not as specified, check P/S motor
harness for insulation. If it is OK, replace steering
gear case assembly.
Motor circuit resistance
Each terminal and body ground
[A]: Motor connector "E12" (viewed from harness side)
5) Hoist vehicle
6) Check that steering wheel turns to left and right
smoothly. If steering wheel does not turn smoothly,
inspect and repair defective steering and suspension
parts.
7) Connect "E12" connector with ignition switch turned
OFF.
S6RW0D6306013
Approx. 1 Ω
No continuity
1 2
[A]
I6RW0C630012-02