Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000013QKP
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 -           ]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: All Doors LOCK/UNLOCK Functions do not Operate Via Door Key Cylinder; 2018 - 2024 MY Camry [03/2017 -        ]

All Doors LOCK/UNLOCK Functions do not Operate Via Door Key Cylinder

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the door key lock and unlock switch (front door lock with motor assembly LH) and driver door key cylinder lock or unlock switch signals from the front door lock with motor assembly LH. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*

Click here 2018 - 2019 MY Camry [03/2017 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2020 - 2022 MY Camry [09/2019 - 08/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2023 - 2024 MY Camry [08/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION

  • *: w/ Smart Key System

PROCEDURE

1.

READ VALUE USING TECHSTREAM (Door Key SW-Lock, D Door Key SW-UL)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) 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

Door Key SW-Lock

Driver door key-linked lock / unlock switch lock signal

OFF or ON

OFF: Driver door key cylinder not turned to lock position

ON: Driver door key cylinder turned to lock position

-

D Door Key SW-UL

Driver door key-linked lock / unlock switch unlock signal

OFF or ON

OFF: Driver door key cylinder not turned to unlock position

ON: Driver door key cylinder turned to unlock position

-

Body Electrical > Main Body > Data List

Tester Display

Door Key SW-Lock

D Door Key SW-UL

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 2018 MY Camry [03/2017 - 06/2017]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2018 - 2020 MY Camry [06/2017 - 10/2020]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

NG

2.

INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH

(a) Remove the front door lock with motor assembly LH.

Click here 2018 MY Camry [03/2017 - 06/2017]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL 2018 - 2019 MY Camry [06/2017 - 09/2019]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL 2020 MY Camry [09/2019 - 10/2020]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL

(b) Inspect the front door lock with motor assembly LH.

Click here 2018 - 2024 MY Camry [03/2017 -        ]; DOOR LOCK: FRONT DOOR LOCK: INSPECTION

NG

REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH 2018 MY Camry [03/2017 - 06/2017]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL 2018 - 2019 MY Camry [06/2017 - 09/2019]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL 2020 MY Camry [09/2019 - 10/2020]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; DOOR LOCK: FRONT DOOR LOCK: REMOVAL

OK

3.

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

(a) Disconnect the K53 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

O15-9 (L) - K53-18 (L2)

Always

Below 1 Ω

O15-10 (UL) - K53-17 (UL3)

Always

Below 1 Ω

O15-7 (E) - Body ground

Always

Below 1 Ω

O15-9 (L) or K53-18 (L2) - Body ground

Always

10 kΩ or higher

O15-10 (UL) or K53-17 (UL3) - Body ground

Always

10 kΩ or higher

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 2018 MY Camry [03/2017 - 06/2017]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2018 - 2020 MY Camry [06/2017 - 10/2020]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR