Door Unlock Detection Switch Circuit [08/2013 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the display on the Techstream.
   MAIN BODY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   FR Door Lock Pos	Front door RH unlock detection switch signal/LOCK or UNLOCK	LOCK: Front door RH locked UNLOCK: Front door RH unlocked	-
   FL Door Lock Pos	Front door LH unlock detection switch signal/LOCK or UNLOCK	LOCK: Front door LH locked UNLOCK: Front door LH unlocked	-
   RR-Door Lock Pos SW	Rear door RH unlock detection switch signal/ON or OFF	ON: Rear door LH locked and rear door RH unlocked ON: Rear door LH unlocked and rear door RH locked ON: Rear door LH and rear door RH unlocked OFF: Rear door LH and rear door RH locked	-
   RL-Door Lock Pos SW	Rear door LH unlock detection switch/ON or OFF	ON: Rear door LH locked and rear door RH unlocked ON: Rear door LH unlocked and rear door RH locked ON: Rear door LH and rear door RH unlocked OFF: Rear door LH and rear door RH locked	-

   Result

   Result	Proceed to
   OK	A
   Front door unlock detection switch LH does not operate	B
   Front door unlock detection switch RH does not operate	C
   Rear door unlock detection switch LH or rear door unlock detection switch RH does not operate	D

B → See step   2 

C → See step   4 

D → See step   6 

A → See step   11 

1. Remove the front door lock assembly LH. Refer to REMOVAL [08/2013 - 12/2013] .
2. Inspect the front door lock assembly LH. Refer to INSPECTION [08/2013 - ] .

   OK

   Front door lock assembly LH is normal.

NG → See step   12 

OK: Go to next step 

1. Disconnect the K1 front door lock assembly LH connector.
2. Disconnect the I13 main body ECU (multiplex network body ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K1-8 (LSSR) - I13-7 (LSFL)	Always	Below 1 Ω
   K1-8 (LSSR) - Body ground	Always	10 kΩ or higher
   K1-7 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   16 

1. Remove the front door lock assembly RH. Refer to REMOVAL [08/2013 - 12/2013] .
2. Inspect the front door lock assembly RH. Refer to INSPECTION [08/2013 - ] .

   OK

   Front door lock assembly RH is normal.

NG → See step   13 

OK: Go to next step 

1. Disconnect the J1 front door lock assembly RH connector.
2. Disconnect the I13 main body ECU (multiplex network body ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J1-7 (LSSR) - I13-18 (LSFR)	Always	Below 1 Ω
   J1-7 (LSSR) - Body ground	Always	10 kΩ or higher
   J1-8 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   16 

1. Remove the rear door lock assembly LH. Refer to REMOVAL [08/2013 - 12/2013] .
2. Inspect the rear door lock assembly LH. Refer to INSPECTION [08/2013 - ] .

   OK

   Rear door lock assembly LH is normal.

NG → See step   14 

OK: Go to next step 

1. Disconnect the M1 rear door lock assembly LH connector.
2. Disconnect the 3C instrument panel junction block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M1-6 (LSSR) - 3C-17	Always	Below 1 Ω
   M1-6 (LSSR) - Body ground	Always	10 kΩ or higher
   M1-9 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the rear door lock assembly RH. Refer to REMOVAL [08/2013 - 12/2013] .
2. Inspect the rear door lock assembly RH. Refer to INSPECTION [08/2013 - ] .

   OK

   Rear door lock assembly RH is normal.

NG → See step   15 

OK: Go to next step 

1. Disconnect the L1 rear door lock assembly RH connector.
2. Disconnect the 3A instrument panel junction block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L1-6 (LSSR) - 3A-53	Always	Below 1 Ω
   L1-6 (LSSR) - Body ground	Always	10 kΩ or higher
   L1-9 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the instrument panel junction block assembly. Refer to REMOVAL [08/2013 - ] .
2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a

   Component without harness connected (Instrument Panel Junction Block Assembly)

   -

   -

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3C-17 - MB-5 (LSR)	Always	Below 1 Ω
   3A-53 - MB-5 (LSR)	Always	Below 1 Ω

NG → See step   17 

OK → See step   16