OBD Guide
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C1103

Front Right Sensor 1

C1103 is an OBD-II diagnostic trouble code meaning: Front Right Sensor 1. Common causes: broken or damaged sensor wiring harness, malfunction of the sensor itself. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • ABS or ESP indicator is on
  • Incorrect operation of the ABS system
  • Loss of traction control on slippery surfaces

Causes

  • Broken or damaged sensor wiring harness
  • Malfunction of the sensor itself
  • Problems with the sensor connector
  • Contamination or damage to the ring gear

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check sensor resistance (must meet specification)
  3. Clean or replace sensor if necessary
  4. Check the condition of the ring gear

Related codes

C1100C1101C1102C1104

FAQ

What does the C1103 code mean?

C1103 is an OBD-II diagnostic trouble code that indicates: Front Right Sensor 1

What causes a C1103 error code?

The most common causes of C1103 include: Broken or damaged sensor wiring harness; Malfunction of the sensor itself; Problems with the sensor connector; Contamination or damage to the ring gear.

How do I fix a C1103 diagnostic trouble code?

To fix C1103: Check the integrity of the sensor wiring harness. Check sensor resistance (must meet specification). Clean or replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1103?

Limited driving only, diagnose soon

How much does it cost to fix C1103?

The estimated repair cost for C1103 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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