DESCRIPTION
The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly 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:
Click here
Click here
PROCEDURE
1. |
CHECK DOOR LOCK OPERATION |
(a) Check door lock operation.
Click here
Result |
Proceed to |
---|---|
All doors cannot be locked by multiplex network master switch assembly |
A |
All doors cannot be locked by driver door key cylinder |
B |
B |
GO TO STEP 5 |
|
2. |
CHECK FOR DTC (LIN COMMUNICATION SYSTEM) |
(a) Clear the DTCs.
Click here
Body Electrical > Main Body > Clear DTCs(b) Recheck for DTCs.
Body Electrical > Main Body > Trouble CodesOK:
DTC B1206 is not output.
NG |
GO TO LIN COMMUNICATION SYSTEM (DTC B1206) |
|
3. |
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
(a) Replace the multiplex network master switch assembly.
Click here
|
4. |
CHECK DOOR LOCK OPERATION |
(a) Check that all doors can be locked and unlocked by the multiplex network master switch assembly.
Click here
OK:
All doors can be locked and unlocked by the multiplex network master switch assembly.
OK |
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
5. |
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 |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
6. |
INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY |
(a) Remove the front door lock with motor assembly LH.
Click here
(b) Inspect the front door lock with motor assembly LH.
Click here
NG |
REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY |
|
7. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the F15 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the J4 front door lock with motor assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
J4-9 (L) - F15-29 (L2) |
Always |
Below 1 Ω |
J4-10 (UL) - F15-2 (UL3) |
Always |
Below 1 Ω |
J4-7 (E) - Body ground |
Always |
Below 1 Ω |
J4-9 (L) or F15-29 (L2) - Body ground |
Always |
10 kΩ or higher |
J4-10 (UL) or F15-2 (UL3) - Body ground |
Always |
10 kΩ or higher |
OK |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Toyota CH-R Owners Manual > Using the driving support systems: Driving mode select
In response to driving conditions, one of 3 drive modes can be selected.
Select the drive mode
■ Changing the driving mode To select the drive mode, perform
operations on the multi-information display.
1. Press
or
of meter control switches and select
.
2. Press
or
of the met ...
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Terminals Of Ecu
TERMINALS OF ECU
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the F1 certification ECU (smart key ECU assembly) connector.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness side with the conne ...