Back to 2018 Acura RLX

2018 ACURA RLX

3.5L V6AWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor511Torque3865Fluid9DTC934Battery0Maintenance0Recalls1
C0340high severityChassis

Active Roll Control System Malfunction

on 2018 Acura RLX 3.5L V6 · AWD

What this code means

General fault in the active roll stabilization system that reduces body roll during cornering.

Symptoms

  • Active roll control warning light
  • Increased body roll in corners
  • Stabilizer bar clunking noise
  • Handling reduced

Common causes

  • Active stabilizer bar motor failure
  • Hydraulic valve fault
  • Control module malfunction
  • Stabilizer bar link failure

Diagnostic steps

  1. Scan for specific sub-codes
  2. Test active stabilizer motor or hydraulic valve
  3. Inspect stabilizer bar links
  4. Check module power supply
  5. Monitor system pressure if hydraulic

Repair notes

Diagnose specific active roll control component. System may be hydraulic or electromechanical.

Other Chassis codes on this vehicle

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