DTC B1378: Power Tailgate Right Pinch Sensor Circuit Malfunction
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
- Open the tailgate manually or with the keyless transmitter.
- Close the tailgate with the keyless transmitter or driver's door power tailgate switch.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Clear the DTCs with the HDS.
- 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.
- Turn the ignition switch to LOCK (0).
- Disconnect the 2P connector from the power tailgate right pinch sensor.
- Turn the ignition switch to ON (II).
- Measure the voltage between harness side of power tailgate right pinch sensor 2P connector terminals No. 2(+) and No. 1 (-).
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -Replace the power tailgate right pinch sensor.
NO -Go to step 10.
- Turn the ignition switch to LOCK (0).
- Disconnect power tailgate control unit connector B (20P).
- Check for continuity between power tailgate control unit connector B (20P) terminal No. 13 and power tailgate right pinch sensor 2P connector terminal No. 2.Fig 2: Checking Continuity Between Connector B (20P) Terminal No. 13 And 2P Connector Terminal No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 13.
NO -Repair an open in the wire.
- Check for continuity between power tailgate control unit connector B (20P) terminal No. 17 and power tailgate right pinch sensor 2P connector terminal No. 1.Fig 3: Checking Continuity Between Connector B (20P) Terminal No. 17 And 2P Connector Terminal No. 1
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Replace the power tailgate control unit.
NO -Repair an open in the wire.