How to Troubleshoot Power Tailgate Control System

Power tailgate control unit has the self-diagnosis function that can detect failure without Honda PGM Tester and HDS.

How to troubleshooting


1.Turn the ignition switch ON (II).

2.Connect the SCS connector (B) to the power tailgate inspection connector (A) .
  • If the ignition switch is turned OFF or SCS connector is disconnected while the safe-diagonals function is working, the safe-diagnosis function stops.
  • If the power tailgate control unit does not memorize DTC, the power tailgate indicator turns on for 3 seconds, then the self-diagnosis is complete.

3.The power tailgate indicator displays DTCs in occurrence order while system is in self-diagnosis mode.

DTC patterns

DTC Cause 
2 Faulty power tailgate outer handle switch 
3 Faulty power tailgate inner switch 
11 Faulty right power tailgate touch sensor 
12 Faulty left power tailgate touch sensor 
34 Faulty open switch of closer unit 
35 Faulty close switch of closer unit 
31 Faulty ratchet switch of closer unit 
32 Faulty full latch switch of closer unit 
33 Faulty half latch switch of closer unit 
13 Faulty temperature sensor 
14 Faulty power tailgate sensor A circuit 
15 Faulty power tailgate sensor B circuit 
21 Faulty power tailgate motor circuit 
22 Faulty power tailgate clutch circuit 
36 Faulty power tailgate closer motor circuit 
43 Faulty EEPROM 
44 Faulty BUS OFF line of B-CAN communication line 
45 Can not receive MICU flame (B1355), DRLOCK flame (B1356), VSP/NE flame (B1357) of B-CAN communication 


How to exit self-diagnosis mode


1.Connect Honda PGM Tester or HDS to Data Link Connector (DLC).

2.Clear the DTCs by selecting the DTCs MENU (DTCs).