Toyota Corolla Cross: All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
DESCRIPTION
The main body ECU (multiplex network body ECU) receives switch signals from the door control switch assembly. 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:
If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration.*
- for HEV Model: Click here
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- for Gasoline Model: Click here
- *: w/ Start Key System
PROCEDURE
|
1. | READ VALUE USING GTS (Manual Door Lock Switch (D/P Door), Manual Door Unlock Switch (D/P Door)) |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Manual Door Lock Switch (D/P Door) |
Front passenger door control switch lock signal |
OFF or ON | OFF: Lock side of front passenger door control switch not pushed ON: Lock side of front passenger door control switch pushed |
- |
| Manual Door Unlock Switch (D/P Door) |
Front passenger door control switch unlock signal |
OFF or ON | OFF: Unlock side of front passenger door control switch not pushed ON: Unlock side of front passenger door control switch pushed |
- |
|
Tester Display |
|---|
| Manual Door Lock Switch (D/P Door) |
|
Manual Door Unlock Switch (D/P Door) |
OK:
The GTS indicates ON or OFF according to the switch operation shown in the table.
| OK | .gif) | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
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| 2. |
INSPECT DOOR CONTROL SWITCH ASSEMBLY |
Click here
| NG | |
REPLACE DOOR CONTROL SWITCH ASSEMBLY |
|
| 3. |
CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) |
(a) Disconnect the K20 door control switch assembly connector.
(b) Disconnect the I86 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
K20-4 (L) - I86-6 (L1) |
Always | Below 1 Ω |
|
K20-2 (UL) - I86-7 (UL1) |
Always | Below 1 Ω |
|
K20-5 (E) - Body ground |
Always | Below 1 Ω |
|
K20-4 (L) - Body ground |
Always | 10 kΩ or higher |
|
I86-6 (L1) - Body ground |
Always | 10 kΩ or higher |
|
K20-2 (UL) - Body ground |
Always | 10 kΩ or higher |
|
I86-7 (UL1) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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DESCRIPTION The main body ECU (multiplex network body ECU) receives signals from the back door opener switch assembly. Then, the main body ECU (multiplex network body ECU) activates the back door lock
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 PRECAUTION
-
- -
2 DISCONNECT CABLE FROM NEGATIV
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