OBD Guide
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C1AE1

Ultrasonic Sensor Front Left Corner Sensor

C1AE1 is an OBD-II diagnostic trouble code meaning: Ultrasonic Sensor Front Left Corner Sensor. Common causes: damage to the ultrasonic sensor, open or short circuit in the sensor circuit. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Disabling the parking assist system
  • False alarms or lack of warnings about obstacles
  • Error message on the dashboard

Causes

  • Damage to the ultrasonic sensor
  • Open or short circuit in the sensor circuit
  • Contact corrosion
  • Problems with the parking sensor control unit

How to Fix

  1. Visually inspect the sensor for damage
  2. Checking the integrity of the wiring harness
  3. Diagnostics of the sensor power circuit
  4. Checking contacts for corrosion
  5. Replace the sensor if necessary

Related codes

C1AE2C1AE3C1AE4

FAQ

What does the C1AE1 code mean?

C1AE1 is an OBD-II diagnostic trouble code that indicates: Ultrasonic Sensor Front Left Corner Sensor

What causes a C1AE1 error code?

The most common causes of C1AE1 include: Damage to the ultrasonic sensor; Open or short circuit in the sensor circuit; Contact corrosion; Problems with the parking sensor control unit.

How do I fix a C1AE1 diagnostic trouble code?

To fix C1AE1: Visually inspect the sensor for damage. Checking the integrity of the wiring harness. Diagnostics of the sensor power circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1AE1?

Limited driving only, diagnose soon

How much does it cost to fix C1AE1?

The estimated repair cost for C1AE1 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat