OBD Guide

C191A

Malfunction In Signal From Steering Sensor To Rear Active Stabilizer Control ECU

C191A is an OBD-II diagnostic trouble code meaning: Malfunction In Signal From Steering Sensor To Rear Active Stabilizer Control ECU. Common causes: steering sensor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Increased body roll when cornering
  • Stabilization warning lamp lights up
  • Reduced effectiveness of the stabilization system

Causes

  • Steering sensor malfunction
  • Open or shorted wiring harness
  • Problems with the active stabilization control unit
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the wiring harness between the steering sensor and the control unit
  2. Diagnose steering sensor
  3. Check connectors for oxidation or damage
  4. Scan the active stabilization control unit for other errors
  5. If necessary, replace the sensor or restore the connection

Related codes

FAQ

What does the C191A code mean?

C191A is an OBD-II diagnostic trouble code that indicates: Malfunction In Signal From Steering Sensor To Rear Active Stabilizer Control ECU

What causes a C191A error code?

The most common causes of C191A include: Steering sensor malfunction; Open or shorted wiring harness; Problems with the active stabilization control unit; Poor contact in connectors.

How do I fix a C191A diagnostic trouble code?

To fix C191A: Check the integrity of the wiring harness between the steering sensor and the control unit. Diagnose steering sensor. Check connectors for oxidation or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C191A?

Limited driving only, diagnose soon

How much does it cost to fix C191A?

The estimated repair cost for C191A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat