2010 Acura Truck MDX V6-3.7L Page 143

Go to step 10.

10. Disconnect power tailgate control unit connector B (20P).

11. Check for continuity between power tailgate control unit connector B (20P) terminal No. 5 and body ground.

Is there continuity?

YES -

Repair a short in the wire.?

NO -

Go to step 12.

12. Do the inside tailgate switch test See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Trunk / Liftgate Switch/Service and

Repair/Drivers Door Power Tailgate Switch Test/Replacement.

Is the switch OK?

YES -

Replace the power tailgate control unit.?

NO -

Replace the inside tailgate switch.?

B1378

DTC Troubleshooting: B1378

DTC B1378:

Power Tailgate Right Pinch Sensor Circuit Malfunction

1. Open the tailgate manually or with the keyless transmitter.

2. Close the tailgate with the keyless transmitter or driver's door power tailgate switch.

3. Turn the ignition switch to LOCK (0) and then back to ON (II).

4. Clear the DTCs with the HDS.

5. Check for DTCs with the HDS.

Is DTC B1378 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power tailgate control unit and the power

tailgate right pinch sensor.?

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

2010 Acura Truck MDX V6-3.7L Page 185

Go to step 10.

NO -

Replace the HandsFreeLink control unit See: Accessories and Optional Equipment/Cellular Phone/Communications Control Module/Service and

Repair.?

10. Disconnect the dashboard wire harness 20P connector from the cable reel.

11. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 2 and body ground.

Is there continuity?

YES -

Repair a short to body ground in the wire between the HandsFreeLink control unit and the cable reel.?

NO -

Replace the cable reel See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly / Spiral Cable/Service and Repair.?

Without Navigation

DTC Troubleshooting: B1780

DTC B1780:

HandsFreeLink steering wheel switch line short (without navigation)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A See: Powertrain

Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting

- B-CAN System Diagnosis Test Mode A.

1. Connect the HDS to the DLC.

2. Clear the DTCs with the HDS.

3. Turn the ignition switch to LOCK (0), then start the engine and turn the steering wheel from lock to lock several times.

4. Check for DTCs with the HDS.

Is DTC B1780 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. Do the HFL switch test See: Accessories and Optional Equipment/Cellular Phone/Testing and Inspection/Component Tests and General

Diagnostics/HFL Switch Test.