DTC C1037
Precautions: Precautions for ESP® · Precautions for Diagnosing Trouble · Test with Speedometer Tester or Other Equipment · Precautions for Brakes · General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
C1037: Steering Angle Sensor Power Supply Voltage Steering angle sensor power supply voltage is out of specified range. |
•Steering angle sensor power supply circuit
•Steering angle sensor ground circuit •Steering angle sensor •CAN communication circuit •ESP® control module |
Circuit Diagram
| [A]: | ESP® control module connector (View: [a]) | 2. | Ignition power supply | 6. | BCM |
| A1: | Steering angle sensor power supply circuit | 3. | “ABS” fuse (10A) | 7. | ESP® control module |
| A2: | Steering angle sensor ground circuit | 4. | CAN driver | ||
| 1. | Steering angle sensor | 5. | Other control modules |
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “ESP® System Check” performed?
|
Go to Step 2
|
Go to ESP® System Check.
|
| 2 |
DTC check
1)Perform DTC Check.
Is other DTC(s) than C1037, C1038 and C1057 detected?
|
Go to applicable DTC troubleshooting.
|
Go to Step 3.
|
| 3 |
DTC check for BCM
1)Check BCM for DTC.
Is any of DTC U0073, U0121 and/or U0126 detected?
|
Go to applicable DTC troubleshooting.
|
Go to Step 4.
|
| 4 |
Fuse check
1)Check “ABS” fuse (10A).
Is check result OK?
|
Go to Step 5.
|
Replace fuse and check for short circuit to ground.
|
| 5 |
Steering angle sensor power supply circuit check
1)Check that ignition is “OFF”.
2)Disconnect steering angle sensor connector.
3)Disconnect “E08” connector.
4)Check for proper connection to “E08” connector.
5)If connection is OK, set ignition “ON”.
6)Measure voltage between “A1” circuit and ground.
Is it 10 – 14 V?
|
Go to Step 6.
|
Repair or replace “A1” circuit.
|
| 6 |
Steering angle sensor ground circuit check
1)Set ignition “ON”.
2)Measure resistance between “A2” circuit and ground.
Is it less than 1 Ω?
|
Go to Step 7.
|
Repair or replace “A2” circuit.
|
| 7 |
Steering angle sensor check
1)Connect steering angle sensor connector.
2)Check steering angle sensor.
Is check result OK?
|
Replace ESP® hydraulic unit / control module assembly and recheck DTC.
|
Replace steering angle sensor and recheck DTC.
|