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Home >> Acura >> 2007 >> TL Base >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> VSA (Vehicle Stability Assist) System >> DTC Troubleshooting >> DTC 81-11: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-52: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-54: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-56: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-58: Central Processing Unit (CPU) Internal Circuit Malfunction
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DTC 81-11: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-52: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-54: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-56: Central Processing Unit (CPU) Internal Circuit Malfunction; DTC 81-58: Central Processing Unit (CPU) Internal Circuit Malfunction

  1. Turn the ignition switch ON (II).
  2. Clear the DTC with the HDS.
  3. Test-drive the vehicle.
  4. Check for DTCs with the HDS.

    Is DTC 81-11, 81-52, 81-54, 81-56, or 81-58 indicated? 

    YES  -Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ).

    NO  -Intermittent failure, the system is OK at this time.

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