DTC 76-1: Rear Differential Fluid Overheats

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 you troubleshoot, review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
When the temperature of the rear differential fluid is abnormally high, the SH-AWD indicator comes on. This is not necessarily a problem, but DTC 76-1 will be stored.
Check the rear differential fluid level (see REAR DIFFERENTIAL FLUID INSPECTION AND REPLACEMENT ). If it's low, refill it, clear the DTC, and recheck.

Turn the ignition switch to ON (II).
Check for DTCs in the VSA system with the HDS.
Are any VSA system DTCs indicated?

YES -Go to the indicated DTC'S TROUBLESHOOTING .

NO -Go to step 3.
Clear the DTC with the HDS.
Start the engine.
Test-drive the vehicle at 10 mph (15 km/h).
Check for WHEEL SPEED in the DATA LIST with the HDS.
Are all wheel speed the same?

YES -Intermittent failure, the system is OK at this time.

NO -Go to step 7.
Turn the ignition switch to LOCK (0).
Check for rear brake drag.
Are the rear brakes OK?

YES -Update the SH-AWD control unit if it does not have the latest software (see SH-AWD® CONTROL UNIT UPDATE ), or substitute a known-good SH-AWD control unit (see SH-AWD® CONTROL UNIT REPLACEMENT ), and recheck. If the symptom/indication goes away with the updated SH-AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good SH-AWD control unit, replace the original SH-AWD control unit (see SH-AWD® CONTROL UNIT REPLACEMENT ).

NO -Inspect and repair the rear brakes (see SYMPTOM TROUBLESHOOTING ).