| DTC Code | DTC Name |
|---|---|
| B2312 | Power Window Switch Malfunction |
DESCRIPTION
The front door window regulator assembly (for driver door) is operated by the power window regulator master switch assembly. The front door window regulator assembly (for driver door) has motor, regulator and ECU functions.
This DTC is stored when the ECU built into the front door window regulator assembly (for driver door) determines that the power window regulator master switch assembly is stuck.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2312 | Power Window Switch Malfunction |
|
|
WIRING DIAGRAM
for LHD
for RHD
CAUTION / NOTICE / HINT
Note
DTC B2312 is stored in the front door window regulator assembly (for driver door) (power window ECU).
If the front door window regulator assembly (for driver door) has been replaced with a new one, initialize the power window control system.
Inspect the fuses for circuits related to this system before performing the following procedure.
Tech Tips
If DTC B2312 is not output again after the DTC has been cleared, the DTC was output due to the switch being held.
PROCEDURE
CHECK DTC OUTPUT
Clear the DTC.
Check for DTCs.
| OK |
|---|
| DTC B2312 is not output. |
| Result | |||
|---|---|---|---|
|
| OK |
|
END (DUE TO SWITCH BEING OPERATED FOR 20 SECONDS OR MORE) |
| NG |
|
READ VALUE USING GTS (D-DOOR MOTOR)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / D-Door Motor / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| D Door P/W Auto SW | Driver door power window auto switch signal | ON or OFF | ON: Driver door power window auto switch being operated OFF: Driver door power window auto switch not being operated |
- |
| D Door P/W Up SW | Driver door power window manual up switch signal | ON or OFF | ON: Driver door power window manual up switch being operated OFF: Driver door power window manual up switch not being operated |
- |
| D Door P/W Down SW | Driver door power window manual down switch signal | ON or OFF | ON: Driver door power window manual down switch being operated OFF: Driver door power window manual down switch not being operated |
- |
| Tester Display |
|---|
| D Door P/W Auto SW |
| D Door P/W Up SW |
| D Door P/W Down SW |
| OK |
|---|
| On the GTS screen, ON or OFF is displayed accordingly. |
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (FOR DRIVER DOOR) Click here |
| NG |
|
CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - FRONT DOOR WINDOW REGULATOR ASSEMBLY (FOR DRIVER DOOR))
Disconnect the H11*1 or G11*2 power window regulator master switch assembly connector.
Disconnect the H14*1 or G5*2 front door window regulator assembly (for driver door) connector.
*1: for LHD
*2: for RHD
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
Remove the power window regulator master switch assembly.
| *a | Component without harness connected (Power Window Regulator Master Switch Assembly (for LHD)) |
for LHD:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| *a | Component without harness connected (Power Window Regulator Master Switch Assembly (for RHD)) |
for RHD:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (FOR DRIVER DOOR) Click here |
| NG |
|
REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Click here |