2010 Acura Truck MDX V6-3.7L Page 535

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. Clear the DTC with the HDS.

3. Do the clutch function test with the HDS See: Transmission and Drivetrain/Differential Assembly/Testing and Inspection/Component Tests

and General Diagnostics.

4. Check for DTCs with the HDS.

Is DTC 53-1 or 53-3 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time.?

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

6. Disconnect SH-AWD control unit connector B (8P) and the left solenoid 4P connector.

7. Connect left solenoid 4P connector terminal No. 1 to body ground with a jumper wire.

8. Check for continuity between SH-AWD control unit connector terminal B5 and body ground.

Is there continuity?

YES -

Go to step 9.

NO -

Repair an open in the wire between the SH-AWD control unit and the left clutch electromagnetic coil.?

9. Remove the jumper wire from left solenoid 4P connector terminal No. 1.

10. Connect left solenoid 4P connector terminal No. 2 to body ground with a jumper wire.

2010 Acura Truck MDX V6-3.7L Page 680

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 LOCK (0).

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

3. Check for continuity between SH-AWD control unit connector terminals A3 and A12.

Is there continuity?

YES -

Go to step 4.

NO -

Go to step 7.

4. Check the REAR DIFFERENTIAL FLUID TEMPERATURE in the DATA LIST is above 68 掳F (20 掳C) with the HDS before proceeding

to the next step. If the temperature is below 68 掳F (20 掳C), drive the vehicle to warm up the rear differential until the fluid temperature

becomes above 68 掳F (20 掳C).

5. Measure the resistance between SH-AWD control unit connector terminals A3 and A12.

Is there 2.0 Ohms or more?

YES -

Go to step 6.

NO -

Go to step 9.

6. Check for continuity between SH-AWD control unit connector terminal A3 and body ground.