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Home >> Acura >> 2005 >> TSX Automatic >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> VSA (Vehicle Stability Assist) System >> Symptom Troubleshooting >> ABS indicator does not come on >> ABS indicator does not go off, and no DTCs are stored

ABS indicator does not go off, and no DTCs are stored

  1. Turn the ignition switch OFF.
  2. Check the No. 18(40 A) fuse in the under-hood fuse/relay box.

    Is the fuse OK? 

    YES  - Reinstall the fuse, and go to step 3.

    NO  - Replace the fuse, and recheck. If the fuse is blown, check for a short to body ground in this fuse circuit. If the circuit is OK, replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ).

  3. Check the No. 18 (15 A) fuse in the under-dash fuse/relay box.

    Is the fuse OK? 

    YES  - Reinstall the fuse, and go to step 4.

    NO  - Replace the fuse, and recheck. If the fuse is blown, check for a short to body ground in this fuse circuit. If the circuit is OK, replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ).

  4. Disconnect the VSA modulator-control unit 47P connector.
  5. Measure the voltage between VSA modulator-control unit 47P connector terminal No. 1 and body ground.
    Fig 1: Measuring Voltage Between VSA Modulator-Control Unit 47P Connector Terminal No. 1 And Body Ground
    G05492188Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  - Go to step 6.

    NO  - Repair open in the wire between the No. 18 (40 A) fuse in the under-hood fuse/relay box and the VSA modulator-control unit.

  6. Turn the ignition switch ON (II).
  7. Measure the voltage between VSA modulator-control unit 47P connector terminal No. 38 and body ground.
    Fig 2: Measuring Voltage Between VSA Modulator-Control Unit 47P Connector Terminal No. 38 And Body Ground
    G05492189Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  - Go to step 8.

    NO  - Repair open in the wire between the No. 18 (15 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.

  8. Turn the ignition switch OFF.
  9. Check for continuity between VSA modulator-control unit 47P connector terminal No. 32 and body ground.
    Fig 3: Checking Continuity Between VSA Modulator-Control Unit 47P Connector Terminal No. 32 And Body Ground
    G05492190Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ), and retest.

    NO  - Repair open in the wire between the VSA modulator-control unit and body ground (G203).

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