OBD Guide
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C1037

Steering Angle Sensor Power Supply Failure

C1037 is an OBD-II diagnostic trouble code meaning: Steering Angle Sensor Power Supply Failure. Common causes: open/short circuit in sensor wiring harness, blown fuse (usually f25-f35 in the mounting block). Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • The ESP/ABS light is on on the dashboard
  • Disabling the stabilization system
  • Stiff rotation of the steering wheel (if the power steering power supply circuit is damaged)
  • Incorrect steering angle readings

Causes

  • Open/short circuit in sensor wiring harness
  • Blown fuse (usually F25-F35 in the mounting block)
  • Oxidation of contacts in connectors
  • Malfunction of the steering angle sensor itself
  • Problems with the clockspring block (in designs with integration)
  • ABS/ESP module malfunction

How to Fix

  1. Check the fuses of the SAS circuit (according to the power supply diagram)
  2. Inspect the wiring harness at the steering column for damage.
  3. Check the voltage at the sensor connector (should be 5V/12V depending on the model)
  4. Clean the connector contacts with contact paste.
  5. Test the sensor with a scanner (the readings should change smoothly when you turn the steering wheel)
  6. If necessary, replace the sensor or clockspring

Related codes

C1038C1210U0121

FAQ

What does the C1037 code mean?

C1037 is an OBD-II diagnostic trouble code that indicates: Steering Angle Sensor Power Supply Failure

What causes a C1037 error code?

The most common causes of C1037 include: Open/short circuit in sensor wiring harness; Blown fuse (usually F25-F35 in the mounting block); Oxidation of contacts in connectors; Malfunction of the steering angle sensor itself.

How do I fix a C1037 diagnostic trouble code?

To fix C1037: Check the fuses of the SAS circuit (according to the power supply diagram). Inspect the wiring harness at the steering column for damage.. Check the voltage at the sensor connector (should be 5V/12V depending on the model). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1037?

Limited driving only, diagnose soon

How much does it cost to fix C1037?

The estimated repair cost for C1037 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat