Dtc C1116: Steering Torque Sensor Power Supply Circuit - Suzuki SX4 Service Manual

DTC C1116: Steering Torque Sensor Power Supply Circuit

Wiring Diagram
WHT
2
1
9
4
[A]
11 12 13 14 15 16 17 18 19 20
1 2 3 4 5 6 7
[A]: P/S control module connector No.1 "E11" (viewed from harness side)
[B]: P/S control module connector No.2 "E13" (viewed from harness side)
[C]: Torque sensor connector "E31" (viewed from harness side)
1. Main fuse box
2. Ignition switch
DTC Detecting Condition and Trouble Area
DTC detecting condition
Circuit voltage of torque sensor 9 V power supply is less
than 7 V
(1 driving cycle detection logic)
DTC Troubleshooting
Step
1 Was "EPS System Check" performed?
2 DTC check
Is DTC C1153 indicated, together?
3 Torque sensor power supply voltage check
1) With ignition switch turned OFF, disconnect torque
sensor connector.
2) Check for voltage between "E31-3" ("GRN" wire)
terminal and body ground with ignition switch ON.
Is it approx. 9 V?
4 Torque sensor power supply voltage check
1) With ignition switch turned OFF, connect torque sensor
connector.
2) Check for voltage between "E11-8" ("GRN" wire)
terminal and body ground with ignition switch ON.
Is it approx. 9 V?
7
10
GRN
E13-1
3
11
LT GRN/
GRN
E11-1
BLK
[C]
2 1
4
5 3
[B]
1
8 9 10
2
Action
Power Assisted Steering System:
5
12V
E11-18
5V
9V
E11-8
E11-10
E11-20
E11-9
E11-19
E13-2
3. Junction block assembly
4. Main fuse
5. P/S control module
6. Torque sensor
7. Individual circuit fuse box No.1
Trouble area
• Torque sensor 9 V power supply circuit
• Torque sensor
• P/S control module
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Substitute a known-
good P/S control
module and recheck.
S7RW0A6304013
6
YEL E31-5
8
9V
GRN
E31-3
WHT E31-2
3V
RED E31-4
BLK
E31-1
GRY
BLK
I6RW0C630005-02
8. Torque sensor power supply circuit
9. "IGN" fuse
10. "P/S" fuse
11. "IG1 SIG" fuse
No
Go to "EPS System
Check".
Go to Step 3.
Go to Step 5.
Replace steering gear
case.
6C-21