OBD Guide
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B2993

Short In The Thermal Protector Circuit

B2993 is an OBD-II diagnostic trouble code meaning: Short In The Thermal Protector Circuit. Common causes: damage to the wiring in the thermal protection circuit, thermal protection device malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Overheating of system components
  • System transition to emergency mode
  • Unstable operation of related systems

Causes

  • Damage to the wiring in the thermal protection circuit
  • Thermal protection device malfunction
  • Problems in the control module
  • Short circuit in wiring harness

How to Fix

  1. Check the integrity of the wiring in the thermal protection circuit
  2. Check the condition of the thermal protection device
  3. Check fuses and relays associated with the circuit
  4. Diagnose the control module
  5. Replace damaged components

Related codes

B2991B2992B2994

FAQ

What does the B2993 code mean?

B2993 is an OBD-II diagnostic trouble code that indicates: Short In The Thermal Protector Circuit

What causes a B2993 error code?

The most common causes of B2993 include: Damage to the wiring in the thermal protection circuit; Thermal protection device malfunction; Problems in the control module; Short circuit in wiring harness.

How do I fix a B2993 diagnostic trouble code?

To fix B2993: Check the integrity of the wiring in the thermal protection circuit. Check the condition of the thermal protection device. Check fuses and relays associated with the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2993?

Limited driving only, diagnose soon

How much does it cost to fix B2993?

The estimated repair cost for B2993 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat