Saturday, March 21, 2020

2010 Acura Truck MDX V6-3.7L Page 413


YES -



Go to step 6.



NO -



Intermittent failure, the system is OK at this time. Check for intermittent open between SH-AWD control unit connector terminals A10 and A20



and yaw rate-lateral/longitudinal acceleration sensor 4P connector terminals No. 2 and No. 3.?



6. Turn the ignition switch to LOCK (0).



7. Disconnect the yaw rate-lateral/longitudinal acceleration sensor 4P connector.



8. Disconnect SH-AWD control unit connector A (20P).



9. Check for continuity between yaw-rate lateral/longitudinal acceleration sensor 4P connector terminals No. 2, No. 3 and SH-AWD control



unit connector terminals A10, A20 respectively.



Is there continuity?



YES -



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.?



NO -



Repair an open in the wires between the SH-AWD control unit and the yaw rate-lateral/longitudinal acceleration sensor.?



41-6



SH AWD DTC Troubleshooting: 41-6



DTC 41-6:



F-CAN Malfunction (Lost Communication with Steering Angle Sensor)



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 steering angle sensor DTCs of F-CAN indicated?