Acura TSX / Honda Accord CL. Instruction — page 285

YES: Reinstall the fuse, and go to step 2.

NO: Replace the fuse, and recheck.

2. Disconnect the VSA control unit 47P connector.

3. Measure the voltage between the VSA control unit 47P connector terminal No. 16 and body ground.

Is there battery voltage?

YES: Go to step 4.

NO: Repair open in the wire between the No. 17 (30A) fuse and the VSA modulator-control
unit.

Fig. 56: Measuring The Voltage Between The VSA Control Unit 47P Connector Terminal No.
16 & Body Ground

4. Measure resistance between the VSA control unit 47P connector terminal No. 47 and body ground.

Is there less than 1 ohm ?

YES: Go to step 5.

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

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

Fig. 57: Measuring Resistance Between The VSA Control Unit 47P Connector Terminal No.
47 & Body Ground

5. Reconnect the VSA control unit 47P connector.

6. Clear the DTC using the DTC (see HOW TO CLEAR DTCS ).

7. Disconnect the HDS from the 16P DLC.

8. Turn the ignition switch OFF, then turn it ON again.

9. Test-drive the vehicle at 10 mph (15 km/h) or more.

Does the ABS indicator come on, and is DTC 51 or 52 indicated?

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

NO: The system is OK at this time.

DTC 53: MOTOR STUCK ON

1. Disconnect the VSA control unit 47P connector.

2. Measure resistance between the VSA control unit 47P connector terminal No. 47 and body ground.

Is there less than 1 ohm ?

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

YES: Go to step 3.

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

Fig. 58: Measuring Resistance Between The VSA Control Unit 47P Connector Terminal No.
47 & Body Ground

3. Reconnect the VSA control unit 47P connector.

4. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).

5. Disconnect the HDS from the 16P DLC.

6. Turn the ignition switch OFF, then turn it ON again.

7. Test-drive the vehicle.

Does the ABS indicator come on, and is DTC 53 indicated?

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

NO: The system is OK at this time.

DTC 54: FAIL-SAFE RELAY

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

1. Disconnect the VSA control unit 47P connector.

2. Measure resistance between the VSA control unit 47P connector terminal No. 47 and body ground.

Is there less than 1 ohm ?

YES: Go to step 3.

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

Fig. 59: Measuring Resistance Between The VSA Control Unit 47P Connector Terminal No.
47 & Body Ground

3. Reconnect the VSA control unit 47P connector.

4. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).

5. Disconnect the HDS from the 16P DLC.

6. Turn the ignition switch OFF, then turn it ON again.

7. Test-drive the vehicle.

Does the ABS indicator come on, and is DTC 54 indicated?

YES: Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

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