DOOR / HATCH POWER BACK DOOR SYSTEM Power Back Door cannot be Operated Using Any Switch
DESCRIPTION
The power back door controls the multiplex network door ECU and operates the power back door unit assembly and back door lock assembly.
If the power back door does not operate using any of the operations, a malfunction related to the power back door operation conditions or multiplex network door ECU are possible causes.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.
for HEV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING202307,999999,_57,_104409,_0606038,RM100000002C0LC,
for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING202307,202405,_57,_104409,_0605911,RM100000002C07Y,202405,999999,_57,_104409,_0605911,RM100000002NU3H,
·Inspect fuses for circuits related to this system before performing the following procedure.
·This check is possible only when the "System Settings" customization setting using the multi-information display in the combination meter assembly is set to "On" (The default setting is "On").
·If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.
·If the 2-step unlock function is enabled via customize settings, only the driver door unlocks when the first unlock operation is performed and the power back door does not operate as all the doors are not unlocked.
PROCEDURE
Read the customize setting "Unlock Key Twice Function" according to the display on the GTS.
- Result:
Result Proceed to The customize setting is "Disable" A The customize setting is "Enable" B
A
B
Read the customize setting "Wireless Unlock Twice Function" according to the display on the GTS.
- Result:
Result Proceed to The customize setting is "Disable" A The customize setting is "Enable" B
A
B
Read the customize setting "Entry Unlock Twice Function" according to the display on the GTS.
for HEV Model: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, HEV Model)>CUSTOMIZE PARAMETERS202307,999999,_58,_115230,_0606511,RM100000002C246,
for Gasoline Model: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>CUSTOMIZE PARAMETERS202307,999999,_58,_115230,_0606491,RM100000002C223,
- Result:
Result Proceed to The customize setting is "Disable" A The customize setting is "Enable" B
A
B
for HEV Model: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, HEV Model)>CUSTOMIZE PARAMETERS202307,999999,_58,_115230,_0606511,RM100000002C246,
for Gasoline Model: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>CUSTOMIZE PARAMETERS202307,999999,_58,_115230,_0606491,RM100000002C223,
Check that the power back door function on the multi-information display in the combination meter assembly is set to ON.
- Result:
Result Proceed to Power back door function on the multi-information display in the combination meter assembly is set to ON (power back door system operation is permitted) A Power back door function on the multi-information display in the combination meter assembly is set to OFF (power back door system operation is prohibited) B
A
B
Check the power back door system condition.
- Result:
Result Proceed to The malfunction symptom reproduces A The malfunction symptom does not reproduce B
A
B
Clear the DTCs.
- Body Electrical > Back Door > Clear DTCs
- 50002 489
- Result:
Proceed to NEXT
NEXT
Check for DTCs.
- Body Electrical > Back Door > Trouble Codes
- 50001 489
- Result:
Result Proceed to DTC is output A DTC is not output B
A
B
| *a | Rear view of wire harness connector
(to Multiplex Network Door ECU) |
Disconnect the multiplex network door ECU connectors.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition U21-10 (GND) - Body ground Always Below 1 Ω
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition U22-20 (ECUB) - Body ground Ignition switch off 11 to 14 V U21-1 (B) - Body ground Ignition switch off 11 to 14 V U22-18 (IG) - Body ground Ignition switch ON 11 to 14 V Ignition switch off Below 1 V
- Result:
Proceed to OK NG
OK
NG
Read the Data List according to the display on the GTS.
- Body Electrical > Back Door > Data List
-
Tester Display Measurement Item Range Diagnostic Note PBD Main Switch Power back door ON/OFF signal ON or OFF ON: Power back door ON
OFF: Power back door offDoor Lock Signal Back door condition signal Lock or Unlock Lock: Back door locked
Unlock: Back door unlocked
- Body Electrical > Back Door > Data List
-
Tester Display PBD Main Switch Door Lock Signal - 50003 489 1037,1051
- Result:
Result Proceed to Either item is normal A "PBD Main SW" item does not switch to "ON" or "OFF" according to main switch operation B "Door Lock Signal" item does not switch to "Lock" or "Unlock" according to operation to lock or unlock all doors C
A
B
C
Read the Data List according to the display on the GTS.
- Body Electrical > Back Door > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note PBD Touch Sensor RH Power back door sensor assembly RH signal ON, OFF or Open ON: Power back door sensor assembly RH pressed
OFF: Power back door sensor assembly RH not pressed
Open: Power back door sensor assembly RH circuit open- PBD Touch Sensor LH Power back door sensor assembly LH signal ON, OFF or Open ON: Power back door sensor assembly LH pressed
OFF: Power back door sensor assembly LH not pressed
Open: Power back door sensor assembly LH circuit open-
- Body Electrical > Back Door > Data List
-
Tester Display PBD Touch Sensor RH PBD Touch Sensor LH - 50003 489 1057,1058
- Result:
Result Proceed to On the GTS screen, ON or OFF is displayed accordingly A On the GTS screen, ON or OFF is not displayed accordingly or Open is displayed for power back door sensor assembly RH B On the GTS screen, ON or OFF is not displayed accordingly or Open is displayed for power back door sensor assembly LH C
A
B
C
- Result:
Proceed to OK NG
OK
NG
Disconnect the U15 power back door sensor assembly RH connector.
Disconnect the U22 multiplex network door ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition U15-1 (OSR) - U22-6 (OSR) Always Below 1 Ω U15-2 (OSRE) - U22-24 (OSE) Always Below 1 Ω U15-1 (OSR) or U22-6 (OSR) - Body ground Always 10 kΩ or higher U15-2 (OSRE) or U22-24 (OSE) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Disconnect the I86 main body ECU (multiplex network body ECU) connector.
Disconnect the U22 multiplex network door ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition U22-12 (LIB) - I86-3 (LSBO) Always Below 1 Ω U22-12 (LIB) or I86-3 (LSBO) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Component with harness connected
(Main Body ECU [Multiplex Network Body ECU]) |
Remove the main body ECU (multiplex network body ECU) with the connector(s) still connected.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition I86-3 (LSBO) - Body ground Back door unlocked Below 1 V
- Result:
Proceed to OK NG
OK
NG
- Result:
Proceed to OK NG
OK
NG
Disconnect the U16 power back door sensor assembly LH connector.
Disconnect the U22 multiplex network door ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition U16-1 (OSL) - U22-26 (OSL) Always Below 1 Ω U16-2 (OSLE) - U22-24 (OSE) Always Below 1 Ω U16-1 (OSL) or U22-26 (OSL) - Body ground Always 10 kΩ or higher U16-2 (OSLE) or U22-24 (OSE) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG