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Home >> Acura >> 2010 >> RDX 2.3 TB1 >> Repair and Diagnosis >> Brakes >> Traction Control >> VSA System Components >> DTC Troubleshooting >> DTC 91: VSA System

DTC 91: VSA System

  1. Check the brake system for leaks or mechanical problems.

    Is the brake system OK? (no brake fluid leakage, no air trapped in the brake system, no brake pads worn out.) 

    YES  -Go to step 2.

    NO  -Repair the brake system, then recheck.

  2. Turn the ignition switch to ON (II).
  3. Clear the DTC with the HDS.
  4. Test-drive the vehicle in a straight line. Accelerate the vehicle up to 6 mph (10 km/h), and stop, then accelerate up to 6 mph (10 km/h) again.
    NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS.

    Is DTC 91 indicated? 

    YES  -Check for loose terminals in the VSA modulator-control unit 46P connector. If it is OK, replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ).

    NO  -Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting (see INTERMITTENT FAILURES  ).

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