Toyota Camry (XV70): 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 .gif)
- *: 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 |
- |
|
Tester Display |
|---|
| Door Key SW-Lock |
|
D Door Key SW-UL |
| OK | .gif) | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
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| 2. |
INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH |
(a) Remove the front door lock with motor assembly LH.
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(b) Inspect the front door lock with motor assembly LH.
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| NG | | REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH
|
|
| 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 ? |
|
O15-10 (UL) - K53-17 (UL3) |
Always | Below 1 ? |
|
O15-7 (E) - Body ground |
Always | Below 1 ? |
|
O15-9 (L) or K53-18 (L2) - Body ground |
Always | 10 k? or higher |
|
O15-10 (UL) or K53-17 (UL3) - Body ground |
Always | 10 k? or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
SEE MORE:
Components
COMPONENTS ILLUSTRATION
*1 COOL AIR INTAKE DUCT SEAL
*2 COWL SIDE TRIM SUB-ASSEMBLY LH
*3 FRONT DOOR SCUFF PLATE LH
*4 FRONT FENDER LINER LH
*5 FRONT WHEEL OPENING EXTENSION PAD LH
*6 HOOD LOCK ASSEMBLY
*7 HOOD LOCK CONTROL C
Radio Receiver Power Source Circuit
DESCRIPTION This is the power source circuit to operate the radio and display receiver assembly. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (R
