POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the door control switch (power window regulator master switch assembly), and driver door key cylinder or front passenger door key cylinder* switch signals from the front door lock with motor assembly LH or front door lock with motor assembly RH*. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.


WIRING DIAGRAM

A01HNC7E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation Click here.

      Result
      Result Proceed to
      All doors cannot be locked through door control switch (power window regulator switch assembly) A
      All doors cannot be locked through door key cylinder B

    B

    CHECK DOOR LOCK OPERATION (DOOR KEY CYLINDER) Click here

    A

  2. READ VALUE USING TECHSTREAM (DOOR CONTROL SWITCH (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY))


    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 Data List according to the display on the Techstream.

      Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Lock SW-Lock Door control switch (power window regulator master switch assembly) or door control switch assembly lock signal/ON or OFF

      ON: Lock side of door control switch (power window regulator master switch assembly) or door control switch assembly pushed

      OFF: Lock side of door control switch (power window regulator master switch assembly) and door control switch assembly not pushed

      		 -
      Door Lock SW-Unlock Door control switch (power window regulator master switch assembly) or door control switch assembly unlock signal/ON or OFF

      ON: Unlock side of door control switch (power window regulator master switch assembly) or door control switch assembly pushed

      OFF: Unlock side of door control switch (power window regulator master switch assembly) and door control switch assembly not pushed

      		 -
      OK
      The Techstream indicates ON or OFF according to the switch operation shown in the table above.

    NG

    INSPECT DOOR CONTROL SWITCH (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY) Click here

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  3. INSPECT DOOR CONTROL SWITCH (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY)


    1. A01HNL6E07
      Text in Illustration
      *a

      Component without harness connected

      (Door Control Switch (Power Window Regulator Master Switch Assembly))

      Remove the door control switch (power window regulator master switch assembly) Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (L) - 1 (E) Lock switch pushed Below 1 Ω
      2 (L) - 1 (E) off 10 kΩ or higher
      9 (UL) - 1 (E) Unlock switch pushed Below 1 Ω
      9 (UL) - 1 (E) off 10 kΩ or higher

    NG

    REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the I13 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
      K11-2 (L) - I13-9 (L1) Always Below 1 Ω
      K11-9 (UL) - I13-10 (UL1) Always Below 1 Ω
      K11-1 (E) - Body ground Always Below 1 Ω
      K11-2 (L) - Body ground Always 10 kΩ or higher
      K11-9 (UL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  5. CHECK DOOR LOCK OPERATION (DOOR KEY CYLINDER)


    1. Proceed to the next step according to the symptom if all the doors cannot be locked/unlocked at once.

      Result
      Result Proceed to
      All doors cannot be locked/unlocked at once by using door key cylinder on driver door. A
      All doors cannot be locked/unlocked at once by using door key cylinder on front passenger door.* B
      All doors cannot be locked/unlocked at once by using both driver door and front passenger door key cylinder*. C

      • *: w/o Wireless Door Lock Control Function


    B

    READ VALUE USING TECHSTREAM (DOOR KEY-LINKED LOCK AND UNLOCK SWITCH) Click here

    C

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    A

  6. READ VALUE USING TECHSTREAM (DOOR KEY-LINKED LOCK AND UNLOCK SWITCH)


    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 Data List according to the display on the Techstream.

      Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Key SW-Lock Driver door and front passenger door* key-linked lock/unlock switch lock signal/ON or OFF

      ON: Driver door or front passenger door* key cylinder turned to lock position

      OFF: Driver door and front passenger door* key cylinder not turned to lock position

      		 -
      D Door Key SW-UL Driver door key-linked lock/unlock switch unlock signal/ON or OFF

      ON: Driver door key cylinder turned to unlock position

      OFF: Driver door key cylinder not turned to unlock position

      		 -

      • *: w/o Wireless Door Lock Control Function

      OK
      The Techstream indicates ON or OFF according to the key cylinder operation shown in the table.

    NG

    INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH Click here

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  7. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH


    1. A01HOZXE04
      Text in Illustration
      *a

      Component without harness connected

      (Front Door Lock with Motor Assembly LH)
      *b Lock
      *c Unlock

      Remove the front door lock with motor assembly LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      9 (L) - 7 (E) Held to lock side Below 1 Ω
      9 (L) - 7 (E) Neutral or held to unlock side 10 kΩ or higher
      10 (UL) - 7 (E) Held to unlock side Below 1 Ω
      10 (UL) - 7 (E) Neutral or held to lock side 10 kΩ or higher

    NG

    REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the I13 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
      K1-9 (L) - I13-11 (L2) Always Below 1 Ω
      K1-10 (UL) - I13-24 (UL3) Always Below 1 Ω
      K1-7 (E) - Body ground Always Below 1 Ω
      I13-11 (L2) - Body ground Always 10 kΩ or higher
      I13-24 (UL3) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  9. READ VALUE USING TECHSTREAM (DOOR KEY-LINKED LOCK AND UNLOCK SWITCH)


    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 Data List according to the display on the Techstream.

      Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Key SW-Lock Driver door and front passenger door* key-linked lock/unlock switch lock signal/ON or OFF

      ON: Driver door or front passenger door* key cylinder turned to lock position

      OFF: Driver door and front passenger door* key cylinder not turned to lock position

      		 -
      Door Key SW-Unlock Passenger door key-linked lock/unlock switch unlock signal/ON or OFF

      ON: Passenger door key cylinder turned to unlock position

      OFF: Passenger door key cylinder not turned to unlock position

      		 -

      • *: w/o Wireless Door Lock Control Function

      OK
      The Techstream indicates ON or OFF according to the key cylinder operation shown in the table.

    NG

    INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH Click here

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  10. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH


    1. A01HNU9E03
      Text in Illustration
      *a

      Component without harness connected

      (Front Door Lock with Motor Assembly RH)
      *b Lock
      *c Unlock

      Remove the front door lock with motor assembly RH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      6 (L) - 8 (E) Held to lock side Below 1 Ω
      6 (L) - 8 (E) Neutral or held to unlock side 10 kΩ or higher
      5 (UL) - 8 (E) Held to unlock side Below 1 Ω
      5 (UL) - 8 (E) Neutral or held to lock side 10 kΩ or higher

    NG

    REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH Click here

    OK

  11. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the I13 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
      J1-6 (L) - I13-11 (L2) Always Below 1 Ω
      J1-5 (UL) - I13-12 (UL2) Always Below 1 Ω
      J1-8 (E) - Body ground Always Below 1 Ω
      I13-11 (L2) - Body ground Always 10 kΩ or higher
      I13-12 (UL2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here