OBD Guide

C1933

Short In Front Control Board Temperature Sensor Circuit

C1933 is an OBD-II diagnostic trouble code meaning: Short In Front Control Board Temperature Sensor Circuit. Common causes: wiring harness damage, temperature sensor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of the climate system
  • Unstable temperature readings on the instrument panel
  • Check Engine Light Illuminates

Causes

  • Wiring harness damage
  • Temperature sensor malfunction
  • Short circuit in the circuit
  • Problems with the control unit

How to Fix

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

Related codes

FAQ

What does the C1933 code mean?

C1933 is an OBD-II diagnostic trouble code that indicates: Short In Front Control Board Temperature Sensor Circuit

What causes a C1933 error code?

The most common causes of C1933 include: Wiring harness damage; Temperature sensor malfunction; Short circuit in the circuit; Problems with the control unit.

How do I fix a C1933 diagnostic trouble code?

To fix C1933: Check the integrity of the wiring harness. Check the resistance of the temperature sensor. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1933?

Limited driving only, diagnose soon

How much does it cost to fix C1933?

The estimated repair cost for C1933 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat