Suzuki GRAND VITARA JB416, Service Manual

Page: 297 / 474

Electronic Stability Program: 4F-34
DTC C1039: Yaw Rate / G Sensor Assembly Internal Failure
S5JB0E4604035
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC C1040: Stability Control System Function Failure
S5JB0E4604036
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
3 Check ESP
®
control module
1) Turn ignition switch to OFF position.
2) Substitute a known-good steering angle sensor.
3) Calibrate steering angle sensors referring to “Sensor
Calibration: ”.
4) Clear all DTC(s) and recheck DTC.
Is DTC C1038 still detected?
Substitute a known-
good ESP
®
hydraulic
unit / control module
assembly and recheck.
Steering angle sensor
was malfunction.
Step Action Yes No
DTC Detecting Condition Trouble Area
Yaw rate / G sensor assembly internal failure is detected. • Yaw rate / G sensor assembly
• ESP
®
control module
Step Action Yes No
1 Was “Electronic Stability Program Check” performed? Go to Step 2. Go to “Electronic
Stability Program
Check: ”.
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC.
Are DTC C1034 and/or C1073 detected?
Go to applicable DTC
diag. flow. Go to Step 3.
3 Check sensor calibration
1) Calibrate yaw rate / G sensor assembly referring to
“Sensor Calibration: ”.
2) Clear all DTC(s) and recheck DTC.
Is DTC C1039 still detected?
Go to Step 4. Yaw rate / G sensor
assembly calibration
was incompleted.
4 Check yaw rate / G sensor assembly
1) Check yaw rate / G sensor assembly referring to “Yaw
Rate / G Sensor Assembly On-Vehicle Inspection: ”.
Is it good condition?
Substitute a known-
good ESP
®
hydraulic
unit / control module
assembly and recheck.
Replace yaw rate / G
sensor assembly.
DTC Detecting Condition Trouble Area
Stability control is active for more than specified time
without yaw rate change. • ESP
®
control module
Step Action Yes No
1 Was “Electronic Stability Program Check” performed Go to Step 2. Go to “Electronic
Stability Program
Check: ”.
2 Check DTC for ESP
®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP
®
.
Is there any DTC(s) other than C1040?
Go to applicable DTC
diag. flow. Substitute a known-
good ESP
®
hydraulic
unit / control module
assembly and recheck.