OBD Guide
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P1952

Turbocharger Control Module 1 Defective

P1952 is an OBD-II diagnostic trouble code meaning: Turbocharger Control Module 1 Defective. Common causes: malfunction of the turbocharger control module, problems with wiring to the module. Estimated repair cost: $56–167.

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

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Rough engine operation
  • Check Engine Light Illuminates
  • Acceleration problems

Causes

  • Malfunction of the turbocharger control module
  • Problems with wiring to the module
  • Short circuit in control circuit
  • Mechanical damage to the turbocharger
  • Software failure in the control module

How to Fix

  1. Check connections and wiring to the control module
  2. Test the control module on the bench
  3. Replace the turbocharger control module if necessary
  4. Check the operation of the turbocharger
  5. Reset error and test drive

Related codes

P1951P1953P2563

FAQ

What does the P1952 code mean?

P1952 is an OBD-II diagnostic trouble code that indicates: Turbocharger Control Module 1 Defective

What causes a P1952 error code?

The most common causes of P1952 include: Malfunction of the turbocharger control module; Problems with wiring to the module; Short circuit in control circuit; Mechanical damage to the turbocharger.

How do I fix a P1952 diagnostic trouble code?

To fix P1952: Check connections and wiring to the control module. Test the control module on the bench. Replace the turbocharger control module if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1952?

Limited driving only, diagnose soon

How much does it cost to fix P1952?

The estimated repair cost for P1952 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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