Thursday, April 30, 2020

2010 Acura Truck MDX V6-3.7L Page 431


Is there continuity?



YES -



Repair a short in the wires between rear differential fluid temperature sensor 2P connector terminals No. 1 and No. 2.?



NO -



Go to step 12.



12. Reconnect all connectors.



13. 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.



14. Start the engine.



15. Let the engine idle 1 minute.



16. Check for DTCs with the HDS.



Is DTC 43-1 indicated?



YES -



Replace the rear differential fluid temperature sensor See: Powertrain Management/Transmission Control Systems/Sensors and Switches -



Transmission and Drivetrain/Sensors and Switches - Differential/Differential Temperature Sensor/Switch/Service and Repair.?



NO -



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.?



43-1x



SRS DTC Troubleshooting: 43-1x, 45-1x



DTC 43-1x ("x" can be 0 thru 9 or A thru F):



No Signal From the Left Side Impact Sensor (first)



DTC 45-1x ("x" can be 0 thru 9 or A thru F):



No Signal From the Left Side Impact Sensor (second)



NOTE:



- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and



Disarming/Service and Repair, General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and



Inspection/Reading and Clearing Diagnostic Trouble Codes, and Battery Terminal Disconnection and Reconnection See: Starting and



Charging/Battery/Service and Repair/Procedures.



- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS



unit software See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,



and retest.



1. Clear the DTCs with the HDS.



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