Dtc C1038: Steering Angle Sensor Detect Rolling Counter - Suzuki SX4 Service Manual

4F-40 Electronic Stability Program:
DTC Troubleshooting
Step
1 Was "Electronic Stability Program Check" performed?
2 DTC check for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP®.
Are DTC U0073 and/or U0126 detected?
3 Check fuse
1) Check circuit fuses for steering angle sensor and its
circuit.
Is it good condition?
4 Check steering angle sensor power supply circuit
1) Turn ignition switch to OFF position.
2) Disconnect steering angle sensor connector.
3) Check for proper connection to steering angle sensor
connector terminals at "G33-2" and "G33-3".
4) If OK, then measure voltage between connector terminal
"G33-3" and vehicle body ground.
Is it 10 – 14 V?
5 Check steering angle sensor ground circuit
1) Turn ignition switch to OFF position.
2) Measure resistance between connector terminal "G33-2"
and vehicle body ground.
Is resistance less than 2

DTC C1038: Steering Angle Sensor Detect Rolling Counter

DTC Detecting Condition and Trouble Area
DTC Detecting Condition
ESP® control module rolling counter failure is detected by
steering angle sensor.
DTC Troubleshooting
Step
1 Was "Electronic Stability Program Check" performed?
2 Check DTC for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC.
Is there any DTC(s) other than C1038 and C1096?
Action
Ω
?
Action
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Go to Step 4.
Substitute a known-
good Steering angle
sensor and recheck. If
DTC C1037 is still
detected, substitute a
known-good ESP®
hydraulic unit / control
module assembly and
recheck.
Trouble Area
• CAN communication circuit
• Steering angle sensor
• ESP® control module
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
No
Go to "Electronic
Stability Program
Check".
Go to Step 3.
Replace fuse and check
for short circuit to
ground.
"WHT/RED" wire circuit
open.
"BLK/ORN" wire circuit
open or high resistance.
S7RW0A4604025
No
Go to "Electronic
Stability Program
Check".
Substitute a known-
good steering angle
sensor and recheck. If
DTC C1038 is still
detected, substitute a
known-good ESP®
hydraulic unit control
module assembly and
recheck.