OBD Guide
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B2380

Heater Coolant Temperature Sensor Circuit Short To Ground

B2380 is an OBD-II diagnostic trouble code meaning: Heater Coolant Temperature Sensor Circuit Short To Ground. Common causes: wiring harness damage, heater temperature sensor malfunction. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Incorrect operation of the climate control system
  • No interior heating
  • Check engine light comes on

Causes

  • Wiring harness damage
  • Heater temperature sensor malfunction
  • Short circuit in the circuit
  • Grounding problems

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the resistance of the heater temperature sensor
  3. Inspect contacts and connectors for corrosion
  4. Check circuit grounding
  5. Replace sensor if necessary

Related codes

B2375B2385

FAQ

What does the B2380 code mean?

B2380 is an OBD-II diagnostic trouble code that indicates: Heater Coolant Temperature Sensor Circuit Short To Ground

What causes a B2380 error code?

The most common causes of B2380 include: Wiring harness damage; Heater temperature sensor malfunction; Short circuit in the circuit; Grounding problems.

How do I fix a B2380 diagnostic trouble code?

To fix B2380: Check the integrity of the wiring harness. Check the resistance of the heater temperature sensor. Inspect contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2380?

Limited driving only, diagnose soon

How much does it cost to fix B2380?

The estimated repair cost for B2380 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat