OBD Guide
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C190F

Malfunction In Rear Active Stabilizer Control ECU Main Relay Power Supply IC

C190F is an OBD-II diagnostic trouble code meaning: Malfunction In Rear Active Stabilizer Control ECU Main Relay Power Supply IC. Common causes: ecu main relay malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–333.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–333 (est.)

Symptoms

  • Check Engine Light Is On
  • Poor handling when cornering
  • Disabling the active stabilizer system

Causes

  • ECU main relay malfunction
  • Open or short circuit in wiring harness
  • Problems with relay contacts
  • Failure of the active stabilizer ECU

How to Fix

  1. Check the condition of the ECU main relay
  2. Check the integrity of the wiring harness
  3. Clean relay contacts
  4. Test the active stabilizer control unit
  5. If necessary, replace the relay or ECU

Related codes

C1910C1915C1920

FAQ

What does the C190F code mean?

C190F is an OBD-II diagnostic trouble code that indicates: Malfunction In Rear Active Stabilizer Control ECU Main Relay Power Supply IC

What causes a C190F error code?

The most common causes of C190F include: ECU main relay malfunction; Open or short circuit in wiring harness; Problems with relay contacts; Failure of the active stabilizer ECU.

How do I fix a C190F diagnostic trouble code?

To fix C190F: Check the condition of the ECU main relay. Check the integrity of the wiring harness. Clean relay contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C190F?

Limited driving only, diagnose soon

How much does it cost to fix C190F?

The estimated repair cost for C190F is $56–333. Actual cost depends on your vehicle, location, and labor rates.

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