Thursday, February 13, 2020

2010 Acura Truck MDX V6-3.7L Page 455


YES -



Go to step 7.



NO -



Replace the SH-AWD relay See: Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission and



Drivetrain/Relays and Modules - Differential/Actuator Relay/Service and Repair.?



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



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



9. Measure the voltage between SH-AWD control unit connector terminal A17 and body ground with the SH-AWD relay removed.



Is there battery voltage?



YES -



Repair a short to power in the wire between the SH-AWD control unit and the SH-AWD relay (FSR line).?



NO -



Go to step 10.



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



11. Disconnect SH-AWD control unit connector B (8P).



12. Measure the voltage between SH-AWD control unit connector terminals B1 and B2.



Is there battery voltage?



YES -



Repair a short to power in the wire between the SH-AWD control unit and the SH-AWD relay (PWR line).?



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.?



44-32



SH AWD DTC Troubleshooting: 44-32

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