OBD Guide

C1AE7

Ultrasonic Sensor Rear Left Center Sensor

C1AE7 is an OBD-II diagnostic trouble code meaning: Ultrasonic Sensor Rear Left Center Sensor. Common causes: ultrasonic sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Parking sensors on the left rear side do not work
  • False alarms of the parking system
  • Parking system error message on dashboard

Causes

  • Ultrasonic sensor malfunction
  • Open or short circuit in wiring harness
  • Damage to the sensor connector
  • Problems with the parking sensor control module

How to Fix

  1. Check the integrity of the sensor visually (for damage)
  2. Check the resistance of the sensor with a multimeter (compare with a known good one)
  3. Check the voltage in the sensor circuit
  4. Inspect the wiring harness and connectors for damage
  5. If necessary, replace the sensor or damaged wires

FAQ

What does the C1AE7 code mean?

C1AE7 is an OBD-II diagnostic trouble code that indicates: Ultrasonic Sensor Rear Left Center Sensor

What causes a C1AE7 error code?

The most common causes of C1AE7 include: Ultrasonic sensor malfunction; Open or short circuit in wiring harness; Damage to the sensor connector; Problems with the parking sensor control module.

How do I fix a C1AE7 diagnostic trouble code?

To fix C1AE7: Check the integrity of the sensor visually (for damage). Check the resistance of the sensor with a multimeter (compare with a known good one). Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1AE7?

Limited driving only, diagnose soon

How much does it cost to fix C1AE7?

The estimated repair cost for C1AE7 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat