Lighting System (For Sedan) Door Unlock Detection Switch Circuit

Vehicle Interior. Yaris. Ncp93, 131
Lighting (Int). Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING TECHSTREAM

INSPECT FRONT DOOR LOCK ASSEMBLY

CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU AND BODY GROUND)

INSPECT REAR DOOR LOCK ASSEMBLY

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR LOCK ASSEMBLY AND BODY GROUND)

LIGHTING SYSTEM (for Sedan) - Door Unlock Detection Switch Circuit


DESCRIPTION

The main body ECU detects the condition of each door unlock detection switch.

WIRING DIAGRAM


Yaris. Ncp93, 131.Lighting (Int).Lighting System (For Sedan).Lighting System (For Sedan) Door Unlock Detection Switch Circuit


INSPECTION PROCEDURE

1.READ VALUE USING TECHSTREAM

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Enter the following menus: Body Electrical / Main Body / Data List.

  1. According to the display on the Techstream, read the Data List.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    D-Door Lock Pos SW
    		Driver side door unlock detection switch signal/ ON or OFF
    		ON: Driver side door is unlocked
    OFF: Driver side door is locked
    		-
    P-Door Lock Pos SW
    		Passenger side door unlock detection switch signal/ ON or OFF
    		ON: Passenger side door is unlocked
    OFF: Passenger side door is locked
    		-
    RR-Door Lock Pos SW
    		Rear door LH and RH door unlock detection switch signal/ ON or OFF
    		ON: Rear LH or RH side door is unlocked
    OFF: Rear LH and RH side door is locked
    		-
    RL-Door Lock Pos SW
    		Rear door LH and RH door unlock detection switch signal/ ON or OFF
    		ON: Rear LH or RH side door is unlocked
    OFF: Rear LH and RH side door is locked
    		-
    OK:
    Normal conditions listed above are displayed.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (Front door unlock detection switch does not operate)
    		B
    NG (Rear door unlock detection switch does not operate)
    		C


B
Go to step 2

C
Go to step 4
A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (YARIS_NCP93 RM000001D9C00XX.html)

2.INSPECT FRONT DOOR LOCK ASSEMBLY

  1. Inspect the front door lock assembly (YARIS_NCP93 RM000001DPO01MX.html).



NG
REPLACE FRONT DOOR LOCK ASSEMBLY (YARIS_NCP93 RM0000029X700HX.html)
OK


3.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU AND BODY GROUND)

  1. Disconnect the G5 or F5 front door lock assembly connector.

  1. Disconnect the D33 main body ECU connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    LH
    Tester Connection
    		Condition
    		Specified Condition
    G5-8 (LSSR) - D33-21 (LSWD)
    		Always
    		Below 1 Ω
    G5-8 (LSSR) - Body ground
    		Always
    		10 kΩ or higher
    G5-7 (E) - Body ground
    		Always
    		Below 1 Ω
    RH
    Tester Connection
    		Condition
    		Specified Condition
    F5-7 (LSSR) - D33-5 (LSWP)
    		Always
    		Below 1 Ω
    F5-7 (LSSR) - Body ground
    		Always
    		10 kΩ or higher
    F5-8 (E) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU

4.INSPECT REAR DOOR LOCK ASSEMBLY

  1. Inspect the rear door lock assembly (YARIS_NCP93 RM000001DPS019X.html).



NG
REPLACE REAR DOOR LOCK ASSEMBLY (YARIS_NCP93 RM0000029XA00HX.html)
OK


5.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR LOCK ASSEMBLY AND BODY GROUND)

  1. Disconnect the D33, 4E and 4S main body ECU connectors.

  1. Disconnect the I3 or H3 rear door lock assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    LH
    Tester Connection
    		Condition
    		Specified Condition
    D33-24 (LSR) - I3-6 (LSSR)
    		Always
    		Below 1 Ω
    D33-24 (LSR) - Body ground
    		Always
    		10 kΩ or higher
    4S-1 - I3-9 (E)
    		Always
    		Below 1 Ω
    4E-17 - Body ground
    		Always
    		Below 1 Ω
    RH
    Tester Connection
    		Condition
    		Specified Condition
    D33-24 (LSR) - H3-6 (LSSR)
    		Always
    		Below 1 Ω
    D33-24 (LSR) - Body ground
    		Always
    		10 kΩ or higher
    4S-1 - H3-9 (E)
    		Always
    		Below 1 Ω
    4E-17 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU