Dtc C1037: Steering Angle Sensor Power Supply Failure - Suzuki SX4 Service Manual

Step
4 Check yaw rate / G sensor power supply circuit
1) Turn ignition switch to OFF position.
2) Disconnect yaw rate / G sensor connector.
3) Check for proper connection to yaw rate / G sensor
connector terminals at "L34-1" and "L34-4".
4) If OK, then measure voltage between connector terminal
"L34-1" and vehicle body ground with ignition switch
turned ON.
Is it 10 – 14 V?
5 Check yaw rate / G sensor ground circuit
1) Measure resistance between connector terminal "L34-4"
and vehicle body ground with ignition switch turned OFF.
Is resistance less than 2

DTC C1037: Steering Angle Sensor Power Supply Failure

Wiring Diagram
WHT
WHT
2
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
GRN
WHT/RED
GRN/ORN
5
6
7
5V
G33-1
G33-3
G33-10
6
G33-9
G33-2
3. Ignition switch
4. Junction block assembly
5. BCM (included in junction block assembly)
6. CAN driver
Go to Step 5.
Substitute a known-
good yaw rate / G
sensor and recheck. If
DTC C1034 and/or
C1039 is still detected,
substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
8
E08-2
RED
6
WHT E08-13
WHT
RED
9
[B]
RED
WHT
10 9
BLK/ORN
• Steering angle sensor
• ESP® control module
Electronic Stability Program:
Yes
"GRN/ORN" wire circuit
open or high resistance.
"BLK/ORN" wire circuit
open or high resistance.
[A] E08
12
13
14
15
16
17
18
19
20
10
21
11
22
23
24
G33
25
26
3 2 1
7. Steering angle sensor
8. ESP® hydraulic unit / control module assembly
9. CAN junction connector
Trouble Area
4F-39
No
S7RW0A4604024
1
2
3
4
5
6
7
8
9
I6RW0H460010-01