Luggage Compartment Door Opener does not Operate [04/2018 - ]: Procedure

1. Check power door lock control system operation.

   Refer to OPERATION CHECK [04/2018 - ]

   OK

   Power door lock control system is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  OPERATION CHECK [04/2018 - ] 

Result: 

OK 

See step  2

1. Check wireless door lock control system operation.

   Refer to OPERATION CHECK [04/2018 - ]

   OK

   Wireless door lock control system is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ] 

Result: 

OK 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Active Test.
5. Perform the Active Test according to the display on the Techstream.

   Body Electrical > Main Body > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Trunk and Back-Door Open	Operate luggage compartment door lock assembly latch release	OFF or ON	-

   Body Electrical > Main Body > Active Test 

   Tester Display
   Trunk and Back-Door Open

   OK

   Luggage compartment door lock assembly latch release motor operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  9

Result: 

OK 

See step  4

1. Enter the following menus: Body Electrical / Main Body / Data List.
2. Read the Data List according to the display on the Techstream.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Trunk/B-Door Open SW	Luggage compartment door opening switch signal	OFF or ON	OFF: Luggage compartment door opening switch off ON: Luggage compartment door opening switch on	-
   Luggage Courtesy SW	Luggage compartment door courtesy light switch signal	OFF or ON	OFF: Luggage compartment door courtesy light switch off ON: Luggage compartment door courtesy light switch on	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Trunk/B-Door Open SW
   Luggage Courtesy SW

   OK

   The Techstream display changes correctly in response to the ON/OFF operation of the luggage compartment door opening switch or luggage compartment door courtesy light switch.

   Result

   Result	Proceed to
   OK	A
   NG (Trunk/B-Door Open SW)	B
   NG (Luggage Courtesy SW)	C

Result: 

B 

See step  7

Result: 

C 

GO TO LIGHTING SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [04/2018 - ] 

Result: 

A 

See step  5

1. Enter the following menus: Body Electrical / Smart Key / Data List.
2. Read the Data List according to the display on the Techstream.

   Body Electrical > Smart Key > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Tr/B-Door Unlock SW	Luggage electrical key switch	OFF or ON	OFF: Luggage electrical key switch not pressed ON: Luggage electrical key switch pressed	When this item is abnormal, there is a malfunction in the luggage electrical key switch or related parts.

   OK

   The Techstream display changes correctly in response to the operation of the luggage electrical key switch.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SMART KEY SYSTEM (for Entry Function). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ] 

Result: 

OK 

See step  6

1. Temporarily replace the main body ECU (multiplex network body ECU) with a new or known good one.

   Refer to REMOVAL [04/2018 - 08/2021] , or refer to REMOVAL [08/2021 - ]

2. Check that the luggage door opener system is normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) WAS DEFECTIVE) 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [04/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - ] 

1. Remove the luggage compartment door opening switch assembly.

   Refer to REMOVAL [04/2018 - ]

2. Inspect the luggage compartment door opening switch assembly.

   Refer to INSPECTION [04/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE LUGGAGE COMPARTMENT DOOR OPENING SWITCH ASSEMBLY. Refer to  REMOVAL [04/2018 - ] 

Result: 

OK 

See step  8

1. Disconnect the G34 main body ECU (multiplex network body ECU) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G34-4 (TSW) - G28-5 (B)	Always	Below 1 Ω
   G28-2 (L) - Body ground	Always	Below 1 Ω
   G34-4 (TSW) or G28-5 (B) - 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 [04/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Remove the luggage compartment door lock assembly.

   Refer to REMOVAL [04/2018 - ]

2. Inspect the luggage compartment door lock assembly.

   Refer to INSPECTION [04/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY. Refer to  REMOVAL [04/2018 - ] 

Result: 

OK 

See step  10

1. Disconnect the 4H instrument panel junction block assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P3-3 (D+) - 4H-34	Always	Below 1 Ω
   P3-1 (B) - 4H-20	Always	Below 1 Ω
   P3-2 (E) - Body ground	Always	Below 1 Ω
   P3-3 (D+) or 4H-34 - Body ground	Always	10 kΩ or higher
   P3-1 (B) or 4H-20 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  11

1. Temporarily replace the instrument panel junction block assembly with a new or known good one.

   Refer to REMOVAL [04/2018 - 08/2021] , or refer to REMOVAL [08/2021 - ]

2. Check that the luggage door opener system is normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [04/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - ]