Dtc C1037: Steering Angle Sensor Power Supply Failure - Suzuki GRAND VITARA JB416 Service Manual

Step
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?
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?
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

DTC C1037: Steering Angle Sensor Power Supply Failure

Wiring Diagram
WHT/GRN
2
WHT
1
[A]: ESP® control module connector (viewed from
terminal side)
[B]: Steering angle sensor connector (viewed from
harness side)
1. Battery
2. Main fuse box
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
Power supply voltage to steering angle sensor is too low. • Steering angle sensor power supply circuit
Action
Ω
?
3
4
BLK/YEL
5
G45-3
WHT
G45-1 GRN/ORN
G45-10 RED
6
WHT
G45-9
G45-2 BLK
3. Ignition switch
4. Junction block assembly
5. Steering angle sensor
6. CAN driver
Electronic Stability Program:
Yes
Substitute a known-
good yaw rate / G
sensor assembly and
recheck.
Go to Step 6.
Substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
9
7
8
RED E53-13
6
WHT
E53-44
[B]
G45
10 9 3 2 1
7. Junction connector
8. To TCM, BCM, 4WD control module, keyless start
control module and combination meter
9. ESP® hydraulic unit / control module assembly
Trouble Area
• Steering angle sensor
• ESP® control module
4F-32
No
Go to Step 5.
"PNK/WHT" wire circuit
is shorted to power
circuit.
"PNK/WHT" and/or
"PNK/GRN" wire circuit
open or high resistance.
S5JB0E4604033
[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
I6JB01460020-02