Tuesday, May 26, 2020

2010 Acura Truck MDX V6-3.7L Page 411


1. Clear the DTCs with the HDS.



2. Turn the ignition switch to ON (II), then wait for 10 seconds.



3. Check for DTCs with the HDS.



Is DTC 41-2x, 41-8x, 41-9x, 41-Ax, or 41-Bx indicated?



YES -



Faulty left front impact sensor; replace the left front impact sensor See: Restraints and Safety Systems/Air Bag Systems/Impact Sensor/Service and



Repair/Front Impact Sensor Replacement, then clear the DTC. If the DTC is still present, replace the SRS unit See: Relays and Modules/Relays



and Modules - Restraints and Safety Systems/Air Bag Control Module/Service and Repair/SRS Unit Replacement.?



NO -



Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.?



41-4



SH AWD DTC Troubleshooting: 41-4



DTC 41-4:



F-CAN Malfunction (Lost Communication with A/T Control Unit)



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 PGM-FI system with the HDS.



Are there any PGM-FI system DTCs indicated?



YES -



Go to the indicated DTC's troubleshooting.?



NO -



Go to step 3.



3. Clear the DTC with the HDS.



4. Start the engine.



5. Check for DTCs with the HDS.



Is DTC 41-4 indicated?



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 PCM connector terminals A48 and A49.?



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



7. Jump the SCS line with the HDS.



NOTE: This step must be done to prevent PCM damage.



8. Disconnect PCM connector A (49P).



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



10. Check for continuity between PCM connector terminals A48, A49 and SH-AWD control unit connector terminals A10, A20 respectively.