Suzuki GRAND VITARA JB416, Service Manual

Page: 295 / 474

Electronic Stability Program: 4F-32
DTC C1037: Steering Angle Sensor Power Supply Failure
S5JB0E4604033
Wiring Diagram
DTC Detecting Condition and Trouble Area
4 Check yaw rate / G sensor assembly power supply
circuit
1) Measure voltage between connector terminal “L39-3”
and “L39-5” with ignition switch turned ON.
Is it 10 – 14 V?
Substitute a known-
good yaw rate / G
sensor assembly and
recheck. Go to Step 5.
5 Check yaw rate / G sensor assembly power supply
circuit
1) Turn ignition switch to OFF position.
2) Disconnect ESP
®
control module connector.
3) Check for proper connection to ESP
®
control module
connector terminals at “E53-31” and “E53-37”.
4) If OK, then measure voltage between connector terminal
“E53-37” and vehicle body ground.
Is it 0 V?
Go to Step 6. “PNK/WHT” wire circuit
is shorted to power
circuit.
6 Check yaw rate / G sensor assembly power supply
circuit
1) Measure resistance between the following points.
• Between terminal “E53-37” of module connector and
terminal “L39-3” of sensor terminal.
• Between terminal “E53-31” of module connector and
terminal “L39-5” of sensor terminal.
Are resistance less than 2
Ω
?
Substitute a known-
good ESP
®
hydraulic
unit / control module
assembly and recheck.
“PNK/WHT” and/or
“PNK/GRN” wire circuit
open or high resistance.
Step Action Yes No
[A]
E53
16
1
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
E53-13
E53-44
RED
WHT
RED
WHT
WHT
GRN/ORN
G45-3
G45-1
BLK G45-2
G45-10
G45-9
BLK/YEL WHT/GRN
1
WHT
[B]
G45
10 9 3 2 1
2
3
4
5
6
7
8
9
6
I6JB01460020-02
[A]: ESP
®
control module connector (viewed from
terminal side)
3. Ignition switch 7. Junction connector
[B]: Steering angle sensor connector (viewed from
harness side)
4. Junction block assembly 8. To TCM, BCM, 4WD control module, keyless start
control module and combination meter
1. Battery 5. Steering angle sensor 9. ESP
®
hydraulic unit / control module assembly
2. Main fuse box 6. CAN driver
DTC Detecting Condition Trouble Area
Power supply voltage to steering angle sensor is too low. • Steering angle sensor power supply circuit
• Steering angle sensor
• ESP
®
control module