OBD Guide

P0383

Glow Plug Control Module 1 Control Circuit Low

P0383 is an OBD-II diagnostic trouble code meaning: Glow Plug Control Module 1 Control Circuit Low. Common causes: malfunction of the glow plug control module, open or short circuit in wiring. Estimated repair cost: $56–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–111 (est.)

Symptoms

  • Difficulty starting the engine (especially in cold weather)
  • Floating idle speed
  • Reduced engine power
  • Check Engine Light

Causes

  • Malfunction of the glow plug control module
  • Open or short circuit in wiring
  • Bad contacts in connectors
  • Faulty glow plugs
  • Module power problems

How to Fix

  1. Check the voltage in the glow plug module control circuit
  2. Check the condition of the glow plugs
  3. Inspect connectors and wires for damage
  4. Check fuses and relays
  5. Replace the glow plug control module (if necessary)

Related codes

Error P0383 by Vehicle Brand

FAQ

What does the P0383 code mean?

P0383 is an OBD-II diagnostic trouble code that indicates: Glow Plug Control Module 1 Control Circuit Low

What causes a P0383 error code?

The most common causes of P0383 include: Malfunction of the glow plug control module; Open or short circuit in wiring; Bad contacts in connectors; Faulty glow plugs.

How do I fix a P0383 diagnostic trouble code?

To fix P0383: Check the voltage in the glow plug module control circuit. Check the condition of the glow plugs. Inspect connectors and wires for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0383?

Limited driving only, diagnose soon

How much does it cost to fix P0383?

The estimated repair cost for P0383 is $56–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat