Suzuki GA413, Service Manual

Page: 116 / 1246

3B1-18 ELECTRICAL POWER STEERING (P/S) SYSTEM
DTC C1114 TORQUE SENSOR 5V POWER SUPPLY CIRCUIT FAIL
1. To main fuse
2. Ignition switch
3. “EPS” fuse (30A) in fuse box
4. “IG METER” fuse (15A) in fuse box 5. P/S control module
6. Torque sensor
7. Connector “A”
8. Connector “C”
CAUTION:
Be sure to perform SYSTEM CHECK FLOW TABLE before starting diagnosis according to flow table
of each DTC.
STEP ACTION YES NO
1 1) Remove steering column lower cover.
2) Check proper connection for 5-pin (“C”) connec-
tor to P/S control module.
3) If OK, ignition switch ON.
4) Check voltage between “C4” (“BI” wire) terminal
of 5-pin (“C”) connector and body ground with “C”
connector connected to P/S control module.
5) Is it about 5 V?
Go to STEP 2. Repair high resistance,
open or short to power
circuit or ground in 5V
power supply (“BI”
wire) circuit.
2 1) Check torque sensor and its circuit. Refer to ON-
VEHICLE INSPECTION of TORQUE SENSOR.
2) Is torque sensor in good condition?
Substitute a known-
good P/S control mod-
ule and recheck.
Replace torque sensor
and recheck.
Fig. for Step 1
NOTE:
Upon completion of inspection and repair work, repeat SYSTEM CHECK FLOW TABLE to confirm that the
trouble has been corrected.