Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Honda Pilot EX, AWDFACTORY OEM SERVICE PROCEDURE
Power Tailgate DTCS
POWER TAILGATE DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description | DTC type |
|---|---|---|
| B1352 | Power Tailgate Control Unit Internal error (EEPROM error) | Internal error |
| B1375 - Refer to: DTC Troubleshooting: B1375 (2016 2017 2018) or DTC Troubleshooting: B1375 (2019 2020 2021) . |
Driver's side PTG switch circuit malfunction | Signal error |
| B1376 - Refer to: DTC Troubleshooting: B1376 (2016 2017 2018) or DTC Troubleshooting: B1376 (2019 2020 2021) . |
Tailgate Outer Handle switch circuit malfunction | Signal error |
| B1377 - Refer to: DTC Troubleshooting: B1377 (2016 2017 2018) or DTC Troubleshooting: B1377 (2019 2020 2021) . |
Power Tailgate Inner switch circuit malfunction | Signal error |
| B1378 - Refer to: DTC Troubleshooting: B1378 (2016 2017 2018) or DTC Troubleshooting: B1378 (2019 2020 2021) . |
Power Tailgate Right Touch/Pinch sensor circuit malfunction | Signal error |
| B1379 - Refer to: DTC Troubleshooting: B1379 (2016 2017 2018) or DTC Troubleshooting: B1379 (2019 2020 2021) . |
Power Tailgate Left Touch/Pinch sensor circuit malfunction | Signal error |
| B1380 - Refer to: DTC Troubleshooting: B1380 (2016 2017 2018) or DTC Troubleshooting: B1380 (2019 2020 2021) . |
Tailgate Closer Unit Neutral switch circuit malfunction | Signal error |
| B1381 | Tailgate Closer Unit Release switch circuit malfunction | Signal error |
| B1382 - Refer to: DTC Troubleshooting: B1382 (2016 2017 2018) or DTC Troubleshooting: B1382 (2019 2020 2021) . |
Tailgate Closer Unit Full Latch switch circuit malfunction | Signal error |
| B1383 - Refer to: DTC Troubleshooting: B1383 (2016 2017 2018) or DTC Troubleshooting: B1383 (2019 2020 2021) . |
Tailgate Closer Unit Ratchet switch circuit malfunction | Signal error |
| B1384 - Refer to: DTC Troubleshooting: B1384 (2016 2017 2018) or DTC Troubleshooting: B1384 (2019 2020 2021) . |
Tailgate Closer Unit Half Latch switch circuit malfunction | Signal error |
| B1385 - Refer to: DTC Troubleshooting: B1385 (2016 2017 2018) or DTC Troubleshooting: B1385 (2019 2020 2021) . |
Power tailgate temperature sensor malfunction | Signal error |
| B1386 - Refer to: DTC Troubleshooting: B1386 (2016 2017 2018) or DTC Troubleshooting: B1386 (2019 2020 2021) . |
Power Tailgate sensor Pulse A circuit malfunction | Signal error |
| B1387 - Refer to: DTC Troubleshooting: B1387 (2016 2017 2018) or DTC Troubleshooting: B1387 (2019 2020 2021) . |
Power Tailgate sensor Pulse B circuit malfunction | Signal error |
| B1388 - Refer to: DTC Troubleshooting: B1388 (2016 2017 2018) or DTC Troubleshooting: B1388 (2019 2020 2021) . |
Power Tailgate Drive Motor circuit malfunction | Signal error |
| B1390 - Refer to: DTC Troubleshooting: B1390 (2016 2017 2018) or DTC Troubleshooting: B1390 (2019 2020 2021) |
Power Tailgate Closer Motor function error | Signal error |
| U0155 | Lost communication with Gauge Control Module (VSP/NE, AT frame) | Loss of communication |
| U0199 | Lost communication with P/W (DRLOCKSW, KLDRLOCK frame) | Loss of communication |
| U1280 | Communication Bus line Error (a bus OFF state is detected by Power Tail Gate ECU) | Loss of communication |
| U1281 | Lost communication with MICU (MICU frame) | Loss of communication |
| U128D - Refer to: DTC Troubleshooting: U0155, U0199, U1281 (Power Tailgate Control Unit) (2016 2017 2018) or DTC Troubleshooting: U0199, U1281, U128D (Power Tailgate Control Unit) (2019 2020 2021) . |
Power tailgate control unit lost communication with gauge control module | Loss of communication |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.