B2312

WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: B2312, B2315; Driver Side Master Switch ON Stuck; 2013 MY FR-S [03/2012 -]
B2312 - Driver Side Master Switch ON Stuck
B2315 - Passenger Side P/W Switch ON Stuck

DESCRIPTION

The power window regulator motor assembly is operated by the power window master switch assembly or power window regulator switch assembly. The power window regulator motor assembly has motor, regulator and ECU functions. These DTCs are output when the ECU built into the regulator motor and master switch determines that the power window master switch assembly or power window regulator switch assembly is stuck.

NOTICE:
* When the power window regulator master switch assembly, power window regulator switch assembly and power window regulator motor assembly is reinstalled or replaced, the power window control system must be initialized Programming and Relearning.
* After the door glass or weatherstrip, etc. have been replaced, if AUTO UP is performed at the position where the work was performed, a different window movement speed to the standard operating learning value may be detected, causing the jam protection function to operate. When the jam protection function malfunctions and prevents the door glass from closing completely, the following procedure can be used to cancel the jam protection function and allow the door glass to be closed*1.
* Repeat the AUTO UP maintain -> jam protection function operation twice in succession*2.
* The third repeat of the AUTO UP maintain operation will cause the position of the upper edge of the door glass to be relearned, allowing the door glass to be closed.
* *1: In some cases, the state of the door glass or regulator may prevent the glass from being closed, even in this mode.
* *2: If any action other that the AUTO UP operation (DOWN operation, IG OFF, timer operated OFF, index operation, etc.) is performed between the operation of the jam protection function and the AUTO UP maintain, this count will be reset.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC OUTPUT

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Check the DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- READ VALUE USING TECHSTREAM

A -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Removal

2. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Master Switch / Data List.

(e) According to the display on the Techstream, read the Data List.

Master Switch





OK:

The Techstream display changes normally when master switch is operated.

NG -- REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (POWER WINDOW MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR SWITCH ASSEMBLY)

(a) Disconnect the E8 power window regulator master switch assembly connector.

(b) Disconnect the F6 power window regulator switch assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Removal