OBD Guide
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C1944

Gauge Driver Circuit Fault

C1944 is an OBD-II diagnostic trouble code meaning: Gauge Driver Circuit Fault. Common causes: open or short circuit in wiring harness, dashboard 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 dashboard readings
  • No reaction from the speedometer or tachometer
  • Check Engine light comes on

Causes

  • Open or short circuit in wiring harness
  • Dashboard sensor malfunction
  • Problems with the control unit
  • Poor contact in connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the sensor and control unit connectors
  3. Replace sensor if necessary
  4. Check the power supply and ground of the sensor

Related codes

C1945C1946U0100

FAQ

What does the C1944 code mean?

C1944 is an OBD-II diagnostic trouble code that indicates: Gauge Driver Circuit Fault

What causes a C1944 error code?

The most common causes of C1944 include: Open or short circuit in wiring harness; Dashboard sensor malfunction; Problems with the control unit; Poor contact in connectors.

How do I fix a C1944 diagnostic trouble code?

To fix C1944: Check wiring harness for damage. Check the sensor and control unit connectors. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1944?

Limited driving only, diagnose soon

How much does it cost to fix C1944?

The estimated repair cost for C1944 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat