Dtc C1024: Steering Angle Sensor Circuit Failure; Dtc C1027: Esp® Off Switch Circuit Failure - Suzuki Grand Vitara 2011 Manual

DTC C1024: Steering Angle Sensor Circuit Failure

DTC Detecting Condition and Trouble Area
DTC Detecting Condition
• Steering angle sensor internal defect is detected by
CPU in steering angle sensor.
• Steering angle sensor signal is out of specified range.
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 C1037, U1073 and/or U1126 detected?
3 Check sensor calibration
1) Calibrate steering angle sensor referring to "Sensor
Calibration".
2) Clear all DTC(s) and check DTC for ESP®.
Is DTC C1024 still detected?
4 Check steering angle sensor
1) Check steering angle sensor referring to "Steering Angle
Sensor On-Vehicle Inspection".
Is it good condition?
DTC C1027: ESP® OFF Switch Circuit Failure
Wiring Diagram
BLK
[A]: ESP® control module connector (viewed from terminal side)
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
Mechanical switch failure, failure in switch wiring is
shorted to ground.
Action
12V
1
BLU/WHT E53-7
Electronic Stability Program:
• Steering angle sensor
• ESP® control module
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
2
1. ESP® OFF Switch 2. ESP® hydraulic unit control module assembly
• ESP® OFF switch
• ESP® OFF switch circuit
• ESP® control module
S6JB0A4604018
Trouble Area
No
Go to "Electronic
Stability Program
Check".
Go to Step 3.
Steering angle sensor
calibration was
incompleted.
Replace steering angle
sensor.
S6JB0A4604019
[A]
E53
32 1
17
33 2
18
34 3
19
35 4
20
36 5
21
37 6
22
38 7
23
39 8
24
40 9
25
41 10
26
42 11
27
43 12
28
44 13
29
45 14
30
46 15
31
47 16
Trouble Area
4F-29
I6JB01460018-01