DESCRIPTION
This DTC is stored when the back door power window regulator motor is stuck.
NOTICE:
When a power window regulator is reinstalled or replaced, the power window control system must be initialized.
Back Door P/W
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2312 |
The back door power window regulator motor is stuck. |
|
WIRING DIAGRAM
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTC (See page ).
(b) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
No DTCs output |
A |
DTC B2312 is output |
B |
A | ![]() |
END |
|
2. |
CHECK MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Tool Setting |
Switch Condition |
Specified Condition |
---|---|---|---|
W10-14 (BUP2) - W10-1 (E4) |
2 V/DIV., 100 ms/DIV. |
Ignition switch ON, back door power window regulator switch up |
Pulse generation (See waveform 1 |
W10-13 (BDN2) - W10-1 (E4) |
2 V/DIV., 100 ms/DIV. |
Ignition switch ON, back door power window regulator switch down |
Pulse generation (See waveform 1) |
W10-12 (AUT2) - W10-1 (E4) |
2 V/DIV., 100 ms/DIV. |
Ignition switch ON, back door power window auto up or auto down function operating |
Pulse generation (See waveform 2) |
NG | ![]() |
REPLACE MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W) |
|
3. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY) |
(a) Disconnect the W9 back door power window regulator motor connector.
(b) Disconnect the W10 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 |
---|---|---|
W9-10 (UP) - V10-14 (BUP2) |
Always |
Below 1 Ω |
W9-7 (DOWN) - V10-13 (BDN2) |
Always |
Below 1 Ω |
W9-4 (AUTO) - V10-12 (AUT2) |
Always |
Below 1 Ω |
W9-1 (GND) - V10-1 (E4) |
Always |
Below 1 Ω |
W9-10 (UP) - Body ground |
Always |
10 kΩ or higher |
W9-7 (DOWN) - Body ground |
Always |
10 kΩ or higher |
W9-4 (AUTO) - Body ground |
Always |
10 kΩ or higher |
W9-1 (GND) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Hall Effect Sensor LH (43,44)
DESCRIPTION
When the automatic running board is operating and the current in the side auto
step motor is within standard parameters, the side auto step controller ECU assembly
halts the operation of the automatic running board if it does not receive a sid ...
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