Toyota Corolla Cross: Door Unlock Detection Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
for HEV Model: Click here .gif)
for Gasoline Model: Click here
- *1: w/ Smart Key System
PROCEDURE
|
1. | READ VALUE USING GTS |
(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 |
|---|---|---|---|---|
|
FR Door Lock Position Switch Status |
Front door RH unlock detection switch signal |
LOCK or UNLOCK | LOCK: Front door RH locked UNLOCK: Front door RH unlocked |
- |
| FL Door Lock Position Switch Status |
Front door LH unlock detection switch signal |
LOCK or UNLOCK | LOCK: Front door LH locked UNLOCK: Front door LH unlocked |
- |
| RR Door Lock Position Switch Status |
Rear door RH unlock detection switch signal |
LOCK or UNLOCK | LOCK: Rear door RH locked UNLOCK: Rear door RH unlocked |
- |
| RL Door Lock Position Switch Status |
Rear door LH unlock detection switch signal |
LOCK or UNLOCK | LOCK: Rear door LH locked UNLOCK: Rear door LH unlocked |
- |
|
Tester Display |
|---|
| FR Door Lock Position Switch Status |
|
FL Door Lock Position Switch Status |
|
RR Door Lock Position Switch Status |
|
RL Door Lock Position Switch Status |
OK:
Normal conditions listed above are displayed.
|
Result | Proceed to |
|---|---|
|
OK | A |
|
NG ("FR Door Lock Position Switch Status" is not normal) |
B |
| NG ("FL Door Lock Position Switch Status" is not normal) |
C |
| NG ("RR Door Lock Position Switch Status" is not normal) |
D |
| NG ("RL Door Lock Position Switch Status" is not normal) |
E |
| A |
.gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| C |
| GO TO STEP 4 |
| D |
| GO TO STEP 6 |
| E |
| GO TO STEP 8 |
|
.gif)
| 2. |
INSPECT FRONT DOOR LOCK ASSEMBLY RH |
Click here
| NG | |
REPLACE FRONT DOOR LOCK ASSEMBLY RH |
|
| 3. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) |
(a) Disconnect the I85 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 |
|---|---|---|
|
K5-7 (LSSR) - I85-3 (LSFR) |
Always | Below 1 Ω |
|
K5-8 (E) - Body ground |
Always | Below 1 Ω |
|
K5-7 (LSSR) - Body ground |
Always | 10 kΩ or higher |
|
I85-3 (LSFR) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 4. |
INSPECT FRONT DOOR LOCK ASSEMBLY LH |
Click here
| NG | |
REPLACE FRONT DOOR LOCK ASSEMBLY LH |
|
| 5. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) |
(a) Disconnect the I85 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 |
|---|---|---|
|
L4-8 (LSSR) - I85-9 (LSFL) |
Always | Below 1 Ω |
|
L4-7 (E) - Body ground |
Always | Below 1 Ω |
|
L4-8 (LSSR) - Body ground |
Always | 10 kΩ or higher |
|
I85-9 (LSFL) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 6. |
INSPECT REAR DOOR LOCK ASSEMBLY RH |
Click here
| NG | |
REPLACE REAR DOOR LOCK ASSEMBLY RH |
|
| 7. |
CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) |
(a) Disconnect the I86 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 |
|---|---|---|
|
M1-6 (LSSR) - I86-23 (LSWR) |
Always | Below 1 Ω |
|
M1-9 (E) - Body ground |
Always | Below 1 Ω |
|
M1-6 (LSSR) - Body ground |
Always | 10 kΩ or higher |
|
I86-23 (LSWR) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 8. |
INSPECT REAR DOOR LOCK ASSEMBLY LH |
Click here
| NG | |
REPLACE REAR DOOR LOCK ASSEMBLY RH |
|
| 9. |
CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) |
(a) Disconnect the I85 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 |
|---|---|---|
|
N1-6 (LSSR) - I85-10 (LSWL) |
Always | Below 1 Ω |
|
N1-9 (E) - Body ground |
Always | Below 1 Ω |
|
N1-6 (LSSR) - Body ground |
Always | 10 kΩ or higher |
|
I85-10 (LSWL) - 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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Procedure Part Name Code
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SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 ROOF RACK ASSEMBLY
63470B
- -
2 ROOF HEADLINING ASSEMBLY
63310 -
- -
N*m (kgf*cm, ft.*lbf): Specified torque
● No
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
PRECAUTIONS WHEN TROUBLESHOOTING
NOTICE:
Because the order of diagnosis is important to allow correct diagnosis,
make sure to begin troubleshooting using How to Proceed with Troubleshooting
when CAN communication system related DTCs are output.
If the CAN commu
