Toyota Venza: Switch Failure (B2342)

Toyota Venza Service Manual / Sliding Roof / Convertible / Sliding Roof System / Switch Failure (B2342)

DESCRIPTION

This DTC is output when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch is stuck for 30 seconds or more.

DTC Code	DTC Detection Condition	Trouble Area
B2342	Sliding roof ECU (sliding roof drive gear sub-assembly) detects sliding roof switch is stuck for 30 seconds or more.	Sliding roof ECU (Sliding roof drive gear sub-assembly) Sliding roof switch (Roof console box assembly) Wire harness or connector

WIRING DIAGRAM

Refer to DTC B2341 (See page ).

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.
When the sliding roof ECU (sliding roof drive gear sub-assembly) is replaced or removed and reinstalled, it requires initialization (See page ).

PROCEDURE

1.	READ VALUE USING TECHSTREAM (SLIDING ROOF SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Slide Roof / Data List.

(e) Read the Data List according to the display on the Techstream.

Slide Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Open Switch Failure (Current)	Open switch failure signal (Current)/Fail or Not Fail	Fail: Sliding roof open signal failure (Current) Not Fail: Sliding roof open signal not fail (Current)	-
Close Switch Failure (Current)	Close switch failure signal (Current)/Fail or Not Fail	Fail: Sliding roof close signal failure (Current) Not Fail: Sliding roof close signal not fail (Current)	-
Up Switch Failure (Current)	Up switch failure signal (Current)/Fail or Not Fail	Fail: Sliding roof tilt up signal failure (Current) Not Fail: Sliding roof tilt up signal not fail (Current)	-
Down Switch Failure (Current)	Down switch failure signal (Current)/Fail or Not Fail	Fail: Sliding roof tilt down signal failure (Current) Not Fail: Sliding roof tilt down signal not fail (Current)	-

OK:

"Not Fail" appears on the Techstream screen.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

2.	CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - BODY GROUND)

(a) Disconnect the P4 ECU connector.

(b) Disconnect the P6 switch connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
P4-7 (OPN) - Body ground	Always	10 kΩ or higher
P4-8 (DWN) - Body ground	Always	10 kΩ or higher
P4-9 (CLS) - Body ground	Always	10 kΩ or higher
P4-10 (UP) - Body ground	Always	10 kΩ or higher

Text in Illustration

*1	Front view of wire harness connector (to Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	CHECK HARNESS AND CONNECTOR (SLIDING ROOF SWITCH (ROOF CONSOLE BOX ASSEMBLY))

(a) Reconnect the P6 switch connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
P4-7 (OPN) - Body ground	SLIDE OPEN switch off	10 kΩ or higher
P4-8 (DWN) - Body ground	TILT DOWN switch off	10 kΩ or higher
P4-9 (CLS) - Body ground	SLIDE CLOSE switch off	10 kΩ or higher
P4-10 (UP) - Body ground	TILT UP switch off	10 kΩ or higher

Text in Illustration

*1	Front view of wire harness connector (to Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

REPLACE SLIDING ROOF SWITCH (ROOF CONSOLE BOX ASSEMBLY)

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly)) DTC Code Detection Item Trouble Area See page ...

Sensor (Motor) Failure (B2341,B2344)

DESCRIPTION When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 is output. When the sliding roof ECU ( ...

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