ABS indicator, brake system indicator, VSA indicator, and trailer stability assist warning do not go off

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition switch to LOCK (0).
Check the No. 29 (10 A) fuse in the under-dash fuse/relay box.
Is the fuse blown?

YES -Replace the fuse. Turn the ignition switch to ON (II), then turn it to LOCK (0) again. If the fuse blows again, repair the short to ground on the No. 29(10 A) fuse circuit.

NO -Reinstall the checked fuse, then go to step 3.
Check the No. 12 (20 A) fuse in the main under-hood fuse box.
Is the fuse blown?

YES -Replace the fuse. If the fuse blows again, repair the short to ground on the No. 12 (20 A) fuse circuit.

NO -Reinstall the checked fuse, then go to step 4.
Do the gauge control module self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).
Is the gauge control module OK?

YES -Go to step 5.

NO -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
Turn the ignition switch to LOCK (0).
Disconnect the VSA modulator-control unit 46P connector (see step 3 under VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
Turn the ignition switch to ON (II).
Measure the voltage between VSA modulator-control unit 46P connector terminal No. 40 and body ground.

Fig 1: Measuring Voltage Between VSA Modulator-Control Unit 46P Connector Terminal No. 40 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 9.

NO -Repair an open in the wire between the No. 29 (10 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.
Turn the ignition switch to LOCK (0).
Check for continuity between VSA modulator-control unit 46P connector terminal No. 43 and body ground.

Fig 2: Checking Continuity Between VSA Modulator-Control Unit 46P Connector Terminal No. 43 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 12.

NO -Repair an open in the wire between the VSA modulator-control unit and body ground (G303).
Measure the voltage between VSA modulator-control unit 46P connector terminal No. 44 and body ground.

Fig 3: Measuring Voltage Between VSA Modulator-Control Unit 46P Connector Terminal No. 44 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 12.

NO -Repair an open in the wire between the No. 12 (20 A) fuse in the main under-hood fuse box and the VSA modulator-control unit.
Disconnect gauge control module connector A (12P) (see GAUGE CONTROL MODULE REPLACEMENT ).

Check for continuity between VSA modulator-control unit 46P connector terminals No. 38, and No. 39 and gauge control module connector A (12P) terminals No. 6, and No. 12 respectively.

Sign	VSA Modulator-Control Unit 46P Connector Terminal	Gauge Control Module Connector A (12P) Terminal
F-CAN A L	No. 38	No. 6
F-CAN A H	No. 39	No. 12

Fig 4: Checking Continuity Between VSA Modulator-Control Unit 46P Connector Terminals And Gauge Control Module Connector A (12P) Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 14.

NO -Repair an open in the wire between the gauge control module and the VSA modulator-control unit.

Reconnect all connectors.
Update the VSA modulator-control unit if it does not have the latest software (see VSA MODULATOR-CONTROL UNIT UPDATE ).
Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
Check the ABS indicator, the brake system indicator, the VSA indicator, and trailer stability assist warning for several seconds when the ignition switch is turned to ON (II).
Do the indicators come on then go off?

YES -Check for loose terminals in the VSA modulator-control unit 46P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).

NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCS TROUBLESHOOTING .