Acura TSX / Honda Accord CL. Instruction — page 291

1 & Body Ground

6. Turn the ignition switch ON (II).

7. Measure the voltage between the VSA control unit 47P connector terminal No. 38 and body ground.

Is there battery voltage?

YES: Go to step 8.

NO: Repair open in the wire between the No. 18 (15A) fuse and the VSA control unit.

Fig. 70: Measuring The Voltage Between The VSA Control Unit 47P Connector Terminal No.
38 & Body Ground

8. Turn the ignition switch OFF.

9. Check for continuity between the VSA control unit 47P connector terminal No. 32 and body ground.

Is there continuity?

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

YES: Check for loose terminals in the VSA control unit 47P connector. If necessary,
substitute a known-good VSA modulator-control unit and recheck.

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

Fig. 71: Checking For Continuity Between The VSA Control Unit 47P Connector Terminal
No. 32 & Body Ground

VSA ACTIVATION INDICATOR CIRCUIT TROUBLESHOOTING

VSA ACTIVATION INDICATOR DOES NOT COME ON

1. Turn the ignition switch ON (II), and watch the VSA activation indicator.

Does the VSA activation indicator come on for several seconds?

YES: The system is OK at this time.

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

NO: Go to step 2.

2. Apply the parking brake.

Does the brake system indicator come on?

YES: Go to step 3.

NO: Repair open in the indicator power source circuit.

3. Turn the ignition switch OFF.

4. Substitute a known-good VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT

REMOVAL & INSTALLATION ).

5. Turn the ignition switch ON (II).

Does the VSA activation indicator come on?

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

NO: Do the troubleshooting for the gauge control module (see SELF-DIAGNOSTIC
PROCEDURE
).

VSA ACTIVATION INDICATOR DOES NOT GO OFF & NO DTCS ARE STORED

1. Turn the ignition switch ON (II), and watch the VSA indicator.

Does the VSA indicator go off?

YES: Go to step 2.

NO: Do the appropriate troubleshooting for the VSA indicator.

2. Turn the ignition switch OFF.

3. Check the VSA OFF switch (see VSA OFF SWITCH TEST ).

Is the switch OK?

YES: Go to step 4.

NO: Replace the VSA OFF switch (see VSA OFF SWITCH TEST ).

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

Does the VSA activation indicator go off?

YES: The system is OK at this time.

NO: Go to step 5.

5. Do the VSA sensor neutral memorization (see VSA SENSOR NEUTRAL POSITION

MEMORIZATION ).

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

Does the VSA activation indicator go off?

YES: The system is OK at this time.

NO: Go to step 7.

7. Remove the gauge control module (see page GAUGE CONTROL MODULE REPLACEMENT ).

8. Check for continuity between the VSA OFF switch 5P connector terminal No. 2 and body ground.

Is there continuity?

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

YES: Repair short to body ground in the wire between the gauge control module and the
VSA OFF switch.

NO: Go to step 9.

Fig. 72: Checking For Continuity Between The VSA OFF Switch 5P Connector Terminal No.
2 & Body Ground

9. Check for continuity between the VSA OFF switch 5P connector terminal No. 1 and body ground.

Is there continuity?

YES: Go to step 10.

NO: Repair open in the wire between the VSA OFF switch and body ground (G501).

2004 Acura TSX

2004 BRAKES Vehicle Stability Assist System — TSX

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