Toyota Corolla Cross: Power Window Switch Malfunction (B2312)
DESCRIPTION
This DTC is stored when the ECU built into a multiplex network master switch assembly determine that the multiplex network master switch assembly is stuck.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
B2312 | Power Window Switch Malfunction |
| Multiplex network master switch assembly |
CAUTION / NOTICE / HINT
NOTICE:
The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.
Click here .gif)
HINT:
If DTC B2312 is not output again after the DTC has been cleared, the DTC was stored due to the switch being held in the same position continuously.
PROCEDURE
| 1. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Master Switch > Clear DTCs
|
.gif)
| 2. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Master Switch > Trouble Codes| Result |
Proceed to |
|---|---|
| B2312 is output |
A |
| DTCs are not output |
B |
| A |
.gif) | REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
| B |
| END (DTC WAS STORED DUE TO SWITCH BEING OPERATED FOR 20 SECONDS OR MORE) |
READ NEXT:
D-Door P/W Motor Component Internal Failure (B231D96)
DESCRIPTION The main body ECU (multiplex network body ECU) communicates with the multiplex network master switch assembly and power window regulator motor assembly (for driver door) via LIN communicat
P-Door P/W Motor Component Internal Failure (B231E96)
DESCRIPTION The main body ECU (multiplex network body ECU) communicates with the power window regulator motor assembly (for front passenger door) via LIN communication.
This DTC is stored when a powe
RR-Door P/W Motor Component Internal Failure (B231F96)
DESCRIPTION The main body ECU (multiplex network body ECU) communicates with the power window regulator motor assembly (for rear RH door) via LIN communication.
This DTC is stored when a power window
SEE MORE:
Rear Wiper Motor Circuit
DESCRIPTION This circuit is the power source circuit for the rear wiper motor assembly. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses of circuits related to this system before performing the following procedure.
Before replacing the main body ECU (multiplex network body EC
Gf1a Transfer Oil
Components
COMPONENTS
ILLUSTRATION
*1
NO. 1 ENGINE UNDER COVER ASSEMBLY
*2
TRANSFER FILLER PLUG
*3
TRANSFER DRAIN PLUG
*4
GASKET
Tightening torque for "Major areas invo
