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Eps System Check - Suzuki SX4 Service Manual

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Terminal Arrangement of P/S Control Module Coupler (Viewed from Harness Side)
Terminal
Ignition switch signal for P/S control
E11-1
module
E11-2
E11-3
E11-4
Vehicle speed signal
E11-5
"EPS" warning Light
E11-6
E11-7
E11-8
9 V power supply for torque sensor
E11-9
Ground for torque sensors
E11-10
Torque sensor signal (Sub)
Serial communication circuit for data
E11-11
link connector
E11-12
Engine speed signal

EPS System Check

WARNING
!
Carry out test drive in light traffic area to prevent an accident.
Refer to the following items for the details of each step.
Step
1
Customer complaint analysis
1) Perform customer complaint analysis referring to
"Customer Complaint Analysis".
Was customer complaint analysis performed?
2
DTC check, record and clearance
1) Check for DTC (including pending DTC) referring to
"DTC Check, Record and Clearance".
Is there any DTC(s)?
3
Visual inspection
1) Perform visual inspection referring to "Visual Inspection".
Is there any faulty condition?
4
Visual inspection
1) Perform visual inspection referring to "Visual Inspection".
Is there any faulty condition?
5
Trouble symptom confirmation
1) Confirm trouble symptom referring to "Trouble Symptom
Confirmation".
Is trouble symptom identified?
6
Rechecking and record of DTC
1) Recheck for DTC referring to "DTC Check".
Is there any DTC(s)?
7
Rechecking and record of DTC
1) Recheck for DTC referring to "DTC Check".
Is there any DTC(s)?
Circuit
Diagnostic Information and Procedures
Action
Power Assisted Steering System:
Terminal
E11-13
E11-14
P/S active signal (idle up signal)
E11-15
E11-16
E11-17
E11-18
Torque sensor signal (Main)
E11-19
Ground for shield wire
Reference sensor power supply for
E11-20
torque sensor
E12-1
Motor output 1
E12-2
Motor output 2
Main power supply for internal
E13-1
memory and EPS motor
E13-2
Ground for P/S control module
Yes
Go to Step 2.
Print DTC or write them
down and clear them by
referring to "DTC
Clearance", and go to
Step 3.
Repair or replace
malfunction part, and go
to Step 11.
Repair or replace
malfunction part, and go
to Step 11.
Go to Step 6.
Go to Step 9.
Go to Step 9.
6C-5
Circuit
S7RW0A6304001
No
Perform customer
complaint analysis.
Go to Step 4.
Go to Step 5.
Go to Step 8.
Go to Step 7.
Go to Step 8.
Go to Step 10.

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