DTC 81-4x ("x" can be 0 thru 9 or A thru F), 81-63, 81-64: Internal the Failure of the ODS Unit

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.

NOTE:

Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed (see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT ).
Before doing this troubleshooting procedure, review SRS PRECAUTIONS AND PROCEDURES and GENERAL TROUBLESHOOTING INFORMATION
Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software (see SRS UNIT UPDATE ), and retest.

Clear the DTCs with the HDS (see HOW TO CLEAR DTCS ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO CLEAR DTCS ).
Is DTC 81-4x, 81-63, or 81-64 indicated?

YES -Go to step 4.

NO -Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES If another DTC is indicated, troubleshoot the DTC.
Do the ODS unit initialization (see ODS UNIT INITIALIZATION ).
Clear the DTCs with the HDS (see HOW TO CLEAR DTCS ).
Turn the ignition switch to LOCK (0), then wait for 10 seconds.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO CLEAR DTCS ).
Is DTC 81-4x, 81-63, or 81-64 indicated?

YES -Go to step 9.

NO -The system is OK at this time.
Replace the ODS unit (see ODS UNIT REPLACEMENT ).
Clear the DTCs with the HDS (see HOW TO CLEAR DTCS ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO CLEAR DTCS ).
Is DTC 81-4x, 81-63, or 81-64 indicated?

YES -Replace the SRS unit (see SRS UNIT REPLACEMENT ).

NO -The system is OK.