Toyota Corolla Cross: Back Door Closer General Electrical Failure (B225001)
DESCRIPTION
The multiplex network door ECU receives signals from the latch switch, initial switch, pawl switch and back door courtesy switch, which are built into the back door lock assembly. Based on these switch signals, the latch position of the back door lock with courtesy light switch assembly is determined.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
B225001 | Back Door Closer General Electrical Failure |
While the back door closer is operating, a malfunction is detected in position information from the initial switch within a specified amount of time. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.
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PROCEDURE
| 1. |
READ VALUE USING GTS |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Back Door > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Closer Position Switch |
Initial switch signal | ON or OFF |
OFF: Back door lock sector gear out of center position (Initial switch off) |
- |
|
Tester Display |
|---|
| Closer Position Switch |
|
Result | Proceed to |
|---|---|
|
The value of Closer Position Switch is OFF |
A |
| None of the above conditions are met |
B |
| B |
.gif) | GO TO STEP 3 |
|
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| 2. |
READ VALUE USING GTS |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Back Door > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Closer Position Switch |
Initial switch signal | ON or OFF |
ON: Back door lock sector gear in center position (Initial switch on) |
- |
|
Tester Display |
|---|
| Closer Position Switch |
|
Result | Proceed to |
|---|---|
|
The value of Closer Position Switch is ON |
A |
| None of the above conditions are met |
B |
| A |
| REPLACE MULTIPLEX NETWORK DOOR ECU |
|
| 3. |
INSPECT BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY |
Click here
| NG | | REPLACE BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY |
|
| 4. |
CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND) |
(a) Disconnect the U17 back door lock with courtesy light switch assembly connector.
(b) Disconnect the U39 multiplex network door ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
U17-6 (OPN) - U39-15 (POS) |
Always | Below 1 Ω |
|
U17-1 (E) - Body ground |
Always | Below 1 Ω |
|
U17-6 (OPN) or U39-15 (POS) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE MULTIPLEX NETWORK DOOR ECU |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
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SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 STEERING WHEEL ASSEMBLY
45100 -
- -
2 LOWER STEERING COLUMN COVER
45287
- -
3 UPPER STEERING COLUMN COVER
45286B -
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the susp
