OBD Guide
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C2166

Abnormal Temperature Inside ID 2 Tire

C2166 is an OBD-II diagnostic trouble code meaning: Abnormal Temperature Inside ID 2 Tire. Common causes: low tire pressure leading to overheating, tpms sensor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Tire pressure indicator is on
  • Inaccurate tire pressure readings
  • Wheel overheating (rare)

Causes

  • Low tire pressure leading to overheating
  • TPMS sensor malfunction
  • Wheel or tire damage
  • Wheel bearing wear causing overheating
  • Electrical fault in wiring harness

How to Fix

  1. Check the pressure in all tires, including the spare tire
  2. Inspect the tire (ID 2) for damage
  3. Check TPMS sensor (replace if necessary)
  4. Diagnose wheel bearing and hub
  5. Reset error and test TPMS system

Related codes

C2165C2167C2170

FAQ

What does the C2166 code mean?

C2166 is an OBD-II diagnostic trouble code that indicates: Abnormal Temperature Inside ID 2 Tire

What causes a C2166 error code?

The most common causes of C2166 include: Low tire pressure leading to overheating; TPMS sensor malfunction; Wheel or tire damage; Wheel bearing wear causing overheating.

How do I fix a C2166 diagnostic trouble code?

To fix C2166: Check the pressure in all tires, including the spare tire. Inspect the tire (ID 2) for damage. Check TPMS sensor (replace if necessary). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C2166?

Limited driving only, diagnose soon

How much does it cost to fix C2166?

The estimated repair cost for C2166 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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