Power Trunk Lid does not Operate Using Any Switches [06/2018 - 08/2021]: Procedure
- CHECK FOR DTC
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Back Door / Trouble Codes.
- Clear the DTCs.
Body Electrical > Back Door > Clear DTCs
- Check for DTCs.
Body Electrical > Back Door > Trouble Codes
OK
DTC is not output.
Result
Proceed to OK NG
Result:
NG
GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2018 - 08/2021]
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (LUGGAGE CLOSER MOTOR ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)
- Disconnect the R7 luggage closer motor assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition R7-11 (GND) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition R7-8 (IG) - Body ground Power switch on (IG) 11 to 14 V Power switch off Below 1 V R7-10 (ECUB) - Body ground Power switch off 11 to 14 V R7-12 (B) - Body ground Power switch off 11 to 14 V Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 3
- READ VALUE USING TECHSTREAM
- Enter the following menus: Body Electrical / Main Body / Data List.
- Read the Data List according to the display on the Techstream.
Refer to DATA LIST / ACTIVE TEST [06/2018 - 08/2021]
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Trunk Main SW Luggage door opening cancel switch assembly signal OFF or ON OFF: Luggage door opening cancel switch assembly off
ON: Luggage door opening cancel switch assembly on- Body Electrical > Main Body > Data List
Tester Display Trunk Main SW OK
The Data List item changes according to the operation of the luggage door opening cancel switch assembly.
Result
Proceed to OK NG
Result:
OK
REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY. Refer to REMOVAL [06/2018 - 08/2021]
Result:
NG
See step 4
- INSPECT LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY
- Remove the luggage door opening cancel switch assembly.
Refer to REMOVAL [06/2018 - 08/2021]
- Inspect the luggage door opening cancel switch assembly.
Refer to INSPECTION [06/2018 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY. Refer to REMOVAL [06/2018 - 08/2021]
Result:
OK
See step 5
- Remove the luggage door opening cancel switch assembly.
- CHECK HARNESS AND CONNECTOR (LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)
- Disconnect the G37 main body ECU (multiplex network body ECU) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition G61-2 (B) - G37-27 (TMSW) Always Below 1 Ω G61-1 (L) - Body ground Always Below 1 Ω G61-2 (B) or G37-27 (TMSW) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to REMOVAL [06/2018 - 08/2021]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR