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Monday, December 7, 2020
Wednesday, September 23, 2020
2010 Acura Truck MDX V6-3.7L Page 145
Is there continuity?
YES -
Replace the power tailgate control unit.?
NO -
Repair an open in the wire.?
B1379
DTC Troubleshooting: B1379
DTC B1379:
Power Tailgate Left 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 B1379 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 left pinch sensor.?
6. Turn the ignition switch to LOCK (0).
7. Disconnect the 2P connector from the power tailgate left pinch sensor.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between harness side of power tailgate left pinch sensor 2P connector terminals No. 2 (+) and No. 1 (-).
2010 Acura Truck MDX V6-3.7L Page 221
Is there battery voltage when the tilt switch is operated?
YES -
Faulty power tilt motor/position sensor, replace the tilt motor assembly.?
NO -
Replace the power tilt/telescopic steering control unit.?
26. Turn the ignition switch to LOCK (0).
27. Disconnect power tilt/telescopic steering control unit connector B (8P).
28. Disconnect the power tilt motor/position sensor 8P connector.
29. Check for continuity between power tilt/telescopic steering control unit connector B (8P) terminals No. 7 and No. 8 and power tilt
motor/position sensor 8P connector terminals No. 2 and No. 3 respectively.
Is there continuity?
YES -
Go to step 30.
NO -
Repair an open in the wire.?
30. Check for continuity between body ground and power tilt motor/position sensor 8P connector terminals No. 2 and No. 3 individually.
2010 Acura Truck MDX V6-3.7L Page 198
Is DTC B1836 also indicated?
YES -
Go to the DTC B1836 troubleshooting See: B1836.?
NO -
Go to step 6.
6. Check for DTCs with the HDS.
Are DTCs B1825, B1827 and/or B1828 also indicated?
YES -
Go to step 17.
NO -
Go to step 7.
7. Turn the ignition switch to LOCK (0) and then back to ON (II).
8. Operate the front up-down switch for 2 seconds, and check the front up-down motor operation.
Does the front up-down motor run smoothly?
YES -
Go to step 9.
NO -
Go to step 26.
9. Turn the ignition switch to LOCK (0).
10. Disconnect power seat control unit connector A (40P).
11. Disconnect the front up-down position sensor 4P connector.
12. Check for continuity between power seat control unit connector A (40P) terminals No. 12 and No. 29 and front up-down position sensor 4P
connector terminals No. 2 and No. 3 respectively.
Is there continuity?
YES -
Go to step 13.
NO -
Repair an open in the wire.?
13. Check for continuity between power seat control unit connector A (40P) terminal No. 12 and body ground.
2010 Acura Truck MDX V6-3.7L Page 30
Go to step 11.
NO -
Repair a short to power in the wire between the rear fuse/relay box and the affected control unit.?
11. Check for continuity between under-dash fuse/relay box connector N (45P) terminal No. 22 and body ground.
Is there continuity?
YES -
Repair a short to ground in the wire.?
NO -
Go to step 12.
12. Turn the ignition switch to ON (II).
13. Measure the voltage between under-dash fuse/relay box connector N (45P) terminal No. 22 and body ground.
Is there battery voltage?
YES -
Repair a short to power in the wire.?
NO -
Faulty MICU, replace the under-dash fuse/relay box.?
B1001
DTC Troubleshooting: B1001, B1002
DTC B1001:
MICU Internal Error (CPU error)
2010 Acura Truck MDX V6-3.7L Page 275
Replace the right power mirror.?
NO -
Replace the front passenger's MPCS unit.?
B2186
DTC Troubleshooting: B2186
DTC B2186:
Front Passenger's Door Lock Switch LOCK/UNLOCK Signal Error
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. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Lock and unlock the front passenger's door with the front passenger's door lock switch.
4. Check for DTCs with the HDS.
Is DTC B2186 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the front passenger's door lock switch system is OK at this time. Check for loose or poor connections between the front
passenger's MPCS unit and the front passenger's door lock switch.?
5. With the front passenger's door lock switch in the neutral position, select the DOOR LOCK from the BODY ELECTRICAL SYSTEM
SELECT menu, and enter the DATA LIST.
6. Check the ON/OFF information of the Front Passenger's Door Lock Switch (LOCK) and Front Passenger's Door Lock Switch (UNLOCK).
Are both information indicators OFF?
YES -
Go to step 7.
NO -
Go to step 8.
7. Operate the front passenger's door lock switch in the LOCK and UNLOCK positions, and check the ON/OFF information of the Front
Passenger's Door Lock Switch (LOCK) and Front Passenger's Door Lock Switch (UNLOCK).
Are both the Front Passenger's Door Lock Switch (LOCK) and Front passenger's Door Lock Switch (UNLOCK) information indicators ON at the
same time when the door lock switch is in the LOCK or UNLOCK position?
YES -
Do the door lock switch test See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Testing and
Inspection/Component Tests and General Diagnostics/Power Door Lock Switch Test. If the switch is OK, repair a short between the wires.?
NO -
Replace the front passenger's MPCS unit.?
8. Disconnect the front passenger's door lock switch 5P connector.
9. Check the ON/OFF information of the Front Passenger's Door Lock Switch (LOCK) and Front Passenger's Door Lock Switch (UNLOCK).
Are both information indicators OFF?