Thursday, February 20, 2020

2010 Acura Truck MDX V6-3.7L Page 245


Open or increased resistance in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.?



SWS



SWS DTC Troubleshooting: 12-2x



DTC 12-2x ("x" can be 0 thru 9 or A thru F):



Faulty Inner Side Front Passenger's Weight Sensor Circuit



NOTE: Only read DTCs from the SRS menu, not from SWS menus unless instructed to check SWS DTCs. SWS (ODS unit) DTCs are subcodes of



SRS unit DTCs. Only troubleshoot the corresponding SRS DTCs. Also these SWS DTCs are cleared by turning the ignition switch to LOCK(0).



Do the troubleshooting for SRS unit DTC 82-12 See: 82-12.



12-3



SH AWD DTC Troubleshooting: 12-1, 12-2, 12-3



DTC 12-1, 12-2, 12-3:



Lateral Acceleration Sensor Malfunction



NOTE: Before you troubleshoot, review the general troubleshooting information See: Transmission and Drivetrain/Differential Assembly/Testing



and Inspection/Initial Inspection and Diagnostic Overview.



1. Turn the ignition switch to ON (II).



2. Check for DTCs in the VSA system with the HDS.



Are any lateral acceleration sensor DTCs indicated?



YES -



Go to the indicated DTC's troubleshooting.?



NO -



Go to step 3.



3. Test-drive the vehicle with an assistant. Drive in a left and right zig-zag pattern at about 13 mph (20 km/h) and check the LATERAL



ACCELERATION SENSOR in the DATA LIST with the HDS.



Does the sensor value change when turning?



YES -



Go to step 4.



NO -



Update the SH-AWD control unit if it does not have the latest software See: Powertrain Management/Transmission Control Systems/Relays and



Modules - Transmission and Drivetrain/Relays and Modules - Differential/Control Unit/Testing and Inspection/SH-AWD Control Unit Update, or



substitute a known-good SH-AWD control unit See: Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission



and Drivetrain/Relays and Modules - Differential/Control Unit/Service and Repair, 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: Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission and



Drivetrain/Relays and Modules - Differential/Control Unit/Service and Repair.?



4. Park the vehicle on a level surface.



5. Check the LATERAL ACCELERATION SENSOR in the DATA LIST with the HDS.



Is there 0.1G or less?



YES -



Intermittent failure, the system is OK at this time. If the DTC returns, replace the SH-AWD control unit See: Powertrain



Management/Transmission Control Systems/Relays and Modules - Transmission and Drivetrain/Relays and Modules - Differential/Control



Unit/Service and Repair.?